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wiki:archive [2019/01/23 22:14] – created adminwiki:archive [Unknown date] (current) – removed - external edit (Unknown date) 127.0.0.1
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-====== Archive ====== 
- 
-===== What is not quite so new anymore? ===== 
- 
-Aug. 2003: the layout of the page has been changed. In addition, several changes and improvements have been made. Details are given below. 
- 
-===== Less Recent Catalog Entries ===== 
- 
-  * Dec. 2017: HC<sup>15</sup>N, //v// = 0; HC<sup>15</sup>N, //v//<sub>2</sub> = 1; HC<sup>15</sup>N, //v//<sub>2</sub> = 2; HC<sup>15</sup>N, //v//<sub>2</sub> = 3; HC<sup>15</sup>N, //v//<sub>3</sub> = 1; HC<sup>15</sup>N, //v//<sub>1</sub> = 1; the standard entry of CH<sub>2</sub>OH is available with 6 quantum numbers; the standard CH<sub>3</sub>CN entries (without HFS) have been corrected. 
-  * Nov. 2017: HNC<sub>3</sub>. 
-  * Oct. 2017: SiH<sup>+</sup>, //v// = 0; SiH<sup>+</sup>, //v// = 1 - 0; urea; SH<sup>+</sup>; <sup>34</sup>SH<sup>+</sup>. 
-  * Sep. 2017: H<sub>2</sub>CSiH<sub>2</sub>; H<sub>2</sub>CSi; //c//-H<sub>2</sub>C<sub>2</sub>Si; H<sub>2</sub>C<sub>2</sub>Si; 2-Cyano-//anti//-butane. 
-  * Aug. 2017: <sup>15</sup>N<sub>2</sub>H<sup>+</sup>; <sup>15</sup>N<sub>2</sub>D<sup>+</sup>; HC<sub>4</sub>O; HC<sub>5</sub>O; HC<sub>6</sub>O; HC<sub>7</sub>O; H<sub>2</sub>NCH<sub>2</sub>CN, //v//<sub>11</sub> + //v//<sub>18</sub> = 1; H<sub>2</sub>NCH<sub>2</sub>CN, //v//<sub>17</sub> = 1; a new compilation is available for CH<sub>3</sub>OH, //v//<sub>t</sub> = 0 - 2. 
-  * July 2017: DOCO<sup>+</sup>; HOCO<sup>+</sup>; HO<sup>13</sup>CO<sup>+</sup>; separate //para// and //ortho// predictions with <sup>14</sup>N hyperfine splitting are available for NH<sub>2</sub>D. 
-  * May 2017: //g'Ga//-1,2-propanediol; //gG'g'//-1,2-propanediol; //aGg'//-1,2-propanediol; //g'Gg//-1,2-propanediol; added separate //para// and //ortho// predictions for H<sub>2</sub>CO. 
-  * Apr. 2017: //i//-C<sub>3</sub>H<sub>7</sub>CN, //v//<sub>30</sub> = 1; H<sub>2</sub>NCH<sub>2</sub><sup>13</sup>CN; H<sub>2</sub>N<sup>13</sup>CH<sub>2</sub>CN; //G'Gg'gg'//-glycerol; //GGag'g'//-glycerol; benzaldehyde; anisole; <sup>13</sup>CH<sub>3</sub><sup>13</sup>CH<sub>2</sub><sup>13</sup>CN. 
-  * Mar. 2017: 1-butyne; H<sub>2</sub>D<sup>+</sup>; CH<sub>2</sub>OH; HOCH<sub>2</sub>CN; corrected intensities of CH<sub>3</sub>O<sup>13</sup>CHO which were too low by a factor of 2. 
-  * Feb. 2017: H<sub>2</sub>C<sup>17</sup>O; H<sub>2</sub>C<sup>18</sup>O; H<sub>2</sub>CO; H<sub>2</sub>O<sup>+</sup>; //i//-C<sub>3</sub>H<sub>7</sub><sup>13</sup>CN; (CH<sub>3</sub>)<sub>2</sub><sup>13</sup>CHCN; <sup>13</sup>CH<sub>3</sub>(CH<sub>3</sub>)CHCN. 
-  * Jan. 2017: NO<sup>+</sup>, //v// = 0, 1; C<sub>2</sub>H<sub>3</sub>D; CH<sub>3</sub>OCN; vinyl formate; propene. 
-  * Dec. 2016: //n//-C<sub>3</sub>H<sub>7</sub>CN, //v// = 0; //g-n//-C<sub>3</sub>H<sub>7</sub>CN, //v//<sub>30</sub> = 1; //a-n//-C<sub>3</sub>H<sub>7</sub>CN, //v//<sub>30</sub> = 1; //g//-//n//-C<sub>3</sub>H<sub>7</sub>CN, //v//<sub>29</sub> = 1; //a//-//n//-C<sub>3</sub>H<sub>7</sub>CN, //v//<sub>18</sub> = 1; //g-n//-C<sub>3</sub>H<sub>7</sub>CN, //v//<sub>30</sub> = 2; //a-n//-C<sub>3</sub>H<sub>7</sub>CN, //v//<sub>30</sub> = 2; //g//-//n//-C<sub>3</sub>H<sub>7</sub>CN, //v//<sub>28</sub> = 1; //a//-//n//-C<sub>3</sub>H<sub>7</sub>CN, //v//<sub>29</sub> = 1. 
-  * Nov. 2016: C<sub>2</sub>H<sub>5</sub>OH, //v// = 0; CH<sub>3</sub>CN, //v// = 0; CH<sub>3</sub>CN, //v//<sub>8</sub> = 1; CH<sub>3</sub>CN, //v//<sub>8</sub> = 2; CH<sub>3</sub>CN, v<sub>8</sub>; CH<sub>3</sub>CN, 2v<sub>8</sub>-v<sub>8</sub>; CH<sub>3</sub>CN, 2v<sub>8</sub>. 
-  * Oct. 2016: ScO; oxetane; diketene; C<sub>2</sub>H<sub>5</sub>CN, //v//<sub>20</sub> = 1-A; C<sub>2</sub>H<sub>5</sub>CN, //v//<sub>12</sub> = 1-A. 
-  * Sep. 2016: CH<sub>3</sub>CNO; CH<sub>2</sub>D<sup>+</sup>. 
-  * Aug. 2016: CH<sub>3</sub>C<sup>15</sup>N, //v//<sub>8</sub> = 1; carbonyl cyanide; DNCS, //a//-type; DNCS, //b//-type; HNC<sup>34</sup>S, //a//-type; HN<sup>13</sup>CS, //a//-type; H<sup>15</sup>NCS, //a//-type; H<sup>34</sup>SCN; HS<sup>13</sup>CN; DSCN; HSC<sup>15</sup>N; HCNS; HSNC. 
-  * July 2016: HSO; <sup>13</sup>CH<sub>3</sub>CN, //v//<sub>8</sub> = 1; CH<sub>3</sub><sup>13</sup>CN, //v//<sub>8</sub> = 1; imported CH<sub>3</sub>SH from VAMDC version of CDMS; extended HFS predictions of CH<sub>3</sub><sup>13</sup>CN and of <sup>13</sup>CH<sub>3</sub>CN; modified tag of <sup>30</sup>Si<sup>18</sup>O which was in conflict with that of CH<sub>3</sub>SH. 
-  * June 2016: HON<sub>2</sub><sup>+</sup>; HN<sub>2</sub>O<sup>+</sup>; propylene oxide. 
-  * May 2016: HSCH<sub>2</sub>CN; <sup>15</sup>NH<sub>2</sub>; CrC. 
-  * Apr. 2016: CH<sub>3</sub><sup>13</sup>CH<sub>2</sub><sup>13</sup>CN; <sup>13</sup>CH<sub>3</sub>CH<sub>2</sub><sup>13</sup>CN; <sup>13</sup>CH<sub>3</sub><sup>13</sup>CH<sub>2</sub>CN; //t//-C<sub>4</sub>H<sub>9</sub>CN. 
-  * Mar. 2016: CH<sub>3</sub>NCO, //v<sub>b</sub>// = 0; CH<sub>3</sub>NCO, //v<sub>b</sub>// = 1. 
-  * Feb. 2016: //cis//-C<sub>2</sub>H<sub>2</sub>O<sub>2</sub>; 3-hydroxypropenal. 
-  * Jan. 2016: OH<sup>+</sup>; HD<sup>13</sup>CO; HDC<sup>18</sup>O; HDCO; D<sub>2</sub>CO; D<sub>2</sub><sup>13</sup>CO; D<sub>2</sub>C<sup>18</sup>O. 
-  * Dec. 2015: 3 //c//-C<sub>3</sub>HD isotopologs with <sup>13</sup>C. 
-  * Nov. 2015: //trans//-Propenal; //l//-C<sub>3</sub>HD. 
-  * Oct. 2015: SiC<sub>2</sub>, //v//<sub>3</sub> = 1; SiC<sub>2</sub>, //v//<sub>3</sub> = 2; SiC<sub>2</sub>, //v//<sub>3</sub> = 3 (extrapolation); SiC<sub>2</sub>, //v//<sub>3</sub> = 4 (extrapolation). 
-  * Sep. 2015: //gauche//-C<sub>2</sub>H<sub>5</sub>SH; //gauche//-C<sub>2</sub>H<sub>5</sub><sup>34</sup>SH; //anti//-C<sub>2</sub>H<sub>5</sub>SH. 
-  * Aug. 2015: //a//-CH<sub>3</sub>CH<sub>2</sub>OD; //a//-CH<sub>3</sub>CHDOH; //a//-//a//-CH<sub>2</sub>DCH<sub>2</sub>OH; //a//-//s//-CH<sub>2</sub>DCH<sub>2</sub>OH; CH<sub>2</sub>(OD)CHO; CHD(OH)CHO; CH<sub>2</sub>(OH)CDO; corrected intensities in N<sub>2</sub>D<sup>+</sup> entry without HFS. 
-  * July 2015: NCCNH<sup>+</sup>; NCCND<sup>+</sup>; NC<sup>13</sup>CNH<sup>+</sup>; N<sup>13</sup>CCNH<sup>+</sup>; CH<sub>2</sub>CHCNH<sup>+</sup>; HCCNSi; NCNSi. 
-  * June 2015: H<sub>2</sub>PCN; Si<sub>2</sub>C, //v// = 0; PCN; CH. 
-  * May 2015: C<sub>5</sub>H; C<sub>4</sub><sup>13</sup>CH; C<sub>3</sub><sup>13</sup>CCH; C<sub>2</sub><sup>13</sup>CC<sub>2</sub>H; C<sup>13</sup>CC<sub>3</sub>H; <sup>13</sup>CC<sub>4</sub>H; C<sub>5</sub>D; CH<sub>3</sub>O<sup>13</sup>CHO, //v<sub>t</sub>// = 0, 1; imported dimethyl ether entry with corrected //K// quanta. 
-  * Mar. 2015: SH, //v// = 0; SH, //v// = 1; C<sub>3</sub>H<sup>+</sup>; added two ground-state HFS components each to entries of H<sub>2</sub>Cl<sup>+</sup> and H<sub>2</sub><sup>37</sup>Cl<sup>+</sup>. 
-  * Feb. 2015: C<sub>5</sub>S; C<sub>5</sub><sup>34</sup>S; <sup>13</sup>CC<sub>4</sub>S; C<sup>13</sup>CC<sub>3</sub>S; C<sub>2</sub><sup>13</sup>CC<sub>2</sub>S; C<sub>3</sub><sup>13</sup>CCS; C<sub>4</sub><sup>13</sup>CS; C<sub>7</sub>S; imported CH<sub>3</sub><sup>18</sup>OH entry. 
-  * Jan. 2015: NO, //v// = 0; NO, //v// = 1; <sup>15</sup>NO; N<sup>18</sup>O; N<sup>17</sup>O; <sup>15</sup>N<sup>18</sup>O; <sup>15</sup>N<sup>17</sup>O; //Ga-n//-C<sub>3</sub>H<sub>7</sub>OH. 
-  * Dec. 2014: H<sub>2</sub>S<sub>2</sub>; SiC<sub>3</sub>H; SiC<sub>2</sub>N; SiC<sub>4</sub>H; SiC<sub>3</sub>N; //cis//-S<sub>2</sub>O<sub>2</sub>; added comment on dipole moment of SiCCH. 
-  * Nov. 2014: H<sup>13</sup>CN, //v// = 0; H<sup>13</sup>CN, //v//<sub>2</sub> = 1; H<sup>13</sup>CN, //v//<sub>2</sub> = 2; H<sup>13</sup>CN, //v//<sub>2</sub> = 3; H<sup>13</sup>CN, //v//<sub>3</sub> = 1; H<sup>13</sup>CN, //v//<sub>1</sub> = 1; C<sub>2</sub>N; relegated 3rd N<sub>2</sub>H<sup>+</sup> entry to the archive; the 4th entry is now the only one in the catalog. 
-  * Oct. 2014: AlC<sub>3</sub>N. 
-  * Sep. 2014: SiH<sub>3</sub>CN; SiH<sub>3</sub><sup>13</sup>CN; <sup>29</sup>SiH<sub>3</sub>CN; <sup>30</sup>SiH<sub>3</sub>CN; SiH<sub>3</sub>CCH; OH<sup>-</sup>; SH<sup>+</sup>. 
-  * Aug. 2014: //aG'g//-propanediol; //gG'a//-propanediol; //g'G'g//-propanediol; added comment on reported //J// = 2 - 1 transition frequency of AlH in the documentation. 
-  * Jul. 2014: provided missing DNC files. 
-  * Jun. 2014: Pyridine; Furan; Pyrrole. 
-  * May 2014: Glyceraldehyde; //l//-C<sub>3</sub>D<sub>2</sub>; H<sub>2</sub>CNH; H<sub>2</sub><sup>13</sup>CNH; H<sub>2</sub>CND; H<sub>2</sub>C<sup>15</sup>NH; //n//-C<sub>3</sub>H<sub>7</sub>CN; //o-c//-SiC<sub>3</sub>; renamed //c//-SiC<sub>3</sub> //p-c//-SiC<sub>3</sub>. 
-  * Apr. 2014: N<sub>2</sub>H<sup>+</sup>, //v// = 0; previous entry will be kept temporarily as alternative entry; HNSi; dibridged Si<sub>2</sub>H<sub>2</sub>; monobridged Si<sub>2</sub>H<sub>2</sub>; //trans//-HC(O)SH; //cis//-HC(O)SH. 
-  * Mar. 2014: //a'GG'g//-1,3-Propanediol; //gGG'g//-1,3-propanediol; C<sub>4</sub>N. 
-  * Feb. 2014: <sup>29</sup>Si<sup>17</sup>O, //v// = 0 - 2, <sup>30</sup>Si<sup>17</sup>O, //v// = 0 - 2; //E//-HNCHCN; //Z//-HNCHCN; H<sub>2</sub>CNCN; C<sub>3</sub>H<sup>+</sup>. 
-  * Jan. 2014: SiO, //v// = 0 - 10; <sup>29</sup>SiO, //v// = 0 - 6; <sup>30</sup>SiO, //v// = 0 - 6; Si<sup>18</sup>O, //v// = 0 - 5; Si<sup>17</sup>O, //v// = 0 - 4; <sup>29</sup>Si<sup>18</sup>O, //v// = 0 - 3; <sup>30</sup>Si<sup>18</sup>O, //v// = 0 - 3. 
-  * Dec. 2013: H<sub>2</sub>NCH<sub>2</sub>CN; HDNCH<sub>2</sub>CN; D<sub>2</sub>NCH<sub>2</sub>CN; s-//cis//-H<sub>2</sub>C=CHCOOH; s-//trans//-H<sub>2</sub>C=CHCOOH; <sup>38</sup>ArH<sup>+</sup>; added isotope explanations to all ArH<sup>+</sup> isotopologs; corrected slight errors in S atom entry. 
-  * Nov. 2013: H<sub>2</sub>NCO<sup>+</sup>; methyleneaminoacetonitrile; MgOH; CaOH. 
-  * Oct. 2013: Propadienonethione; CH<sub>2</sub>D<sup>+</sup>; //trans//-HOCO; //cis//-HOCO; corrected minor frequency issues in the data for ethanol with one <sup>13</sup>C. 
-  * Sep. 2013: //c//-C<sub>2</sub>H<sub>4</sub>S; HMgNC; HSiCN; HSiNC; NH<sub>3</sub>D<sup>+</sup>; //c//-C<sub>6</sub>H<sub>5</sub>OH. 
-  * Aug. 2013: CO<sup>+</sup>, //v// = 0; CO<sup>+</sup>, //v// = 1; <sup>13</sup>CO<sup>+</sup>; C<sup>18</sup>O<sup>+</sup>; <sup>13</sup>C<sup>18</sup>O<sup>+</sup>. 
-  * July 2013: CH<sub>2</sub>DCN; CHD<sub>2</sub>CN. 
-  * June 2013: C<sub>3</sub>S, //v// = 0; C<sub>3</sub><sup>34</sup>S; <sup>13</sup>CCCS; C<sup>13</sup>CCS; CC<sup>13</sup>CS; C<sup>13</sup>C<sup>13</sup>CS; <sup>13</sup>CC<sup>13</sup>CS; CC<sup>13</sup>C<sup>34</sup>S; C<sup>13</sup>CC<sup>34</sup>S, <sup>13</sup>CCC<sup>34</sup>S; C<sub>3</sub>S, //v//<sub>5</sub> = 1. 
-  * May 2013: PH<sub>3</sub>; TiO; reevaluated HN<sup>13</sup>C. 
-  * Apr. 2013: malononitrile; formamide, //v// = 0; formamide, //v//<sub>12</sub> = 1; H<sup>13</sup>C(O)NH<sub>2</sub>; DC(O)NH<sub>2</sub>; reevaluated CH<sub>3</sub>C<sub>8</sub>H, CH<sub>3</sub>C<sub>7</sub>N, and CH<sub>3</sub>C<sub>9</sub>N; corrected partition function in HC(<sup>18</sup>O)NH<sub>2</sub> documentation. 
-  * Feb. 2013: CH<sub>2</sub>(OH)<sup>13</sup>CHO; <sup>13</sup>CH<sub>2</sub>(OH)CHO; C<sub>2</sub>H<sub>5</sub><sup>13</sup>CN; CH<sub>3</sub><sup>13</sup>CH<sub>2</sub>CN; <sup>13</sup>CH<sub>3</sub>CH<sub>2</sub>CN; lowered intensity cut-offs for PH<sub>3</sub> entry. 
-  * Jan. 2013: C<sub>2</sub>H<sub>5</sub>NH<sub>2</sub>, //anti//-conformer. 
-  * Dec. 2012: HSiS; HSiO. 
-  * Nov. 2012: H<sub>2</sub>F<sup>+</sup>; H<sub>2</sub>SiO; H<sub>2</sub>SiS; C<sub>3</sub>H<sup>+</sup>. 
-  * Oct. 2012: corrected spin-statistics for //c//-C<sub>2</sub>H<sub>4</sub>O and //c//-C<sub>2</sub>H<sub>4</sub><sup>18</sup>O; some links and references have been corrected. 
-  * Sep. 2012: YO; AlS; AlCCH; ScS; YS; HSO. 
-  * Aug. 2012: //a//-CH<sub>3</sub><sup>13</sup>CH<sub>2</sub>OH; //a//-<sup>13</sup>CH<sub>3</sub>CH<sub>2</sub>OH. 
-  * July 2012: //c//-C<sub>3</sub>D<sub>2</sub>; HCCO; HNCN; H<sub>2</sub>CNH; //c//-C<sub>2</sub>H<sub>4</sub>O; //c//-C<sup>13</sup>CH<sub>4</sub>O; //c//-C<sub>2</sub>H<sub>4</sub><sup>18</sup>O; corrected <sup>13</sup>C<sup>+</sup> and <sup>36</sup>ArH<sup>+</sup> entries. 
-  * June 2012: //c//-C<sub>3</sub>HD; //c//-<sup>13</sup>CC<sub>2</sub>H<sub>2</sub>; //c//-CC<sup>13</sup>CH<sub>2</sub>. 
-  * May 2012: //c//-C<sub>3</sub>H<sub>2</sub>; H<sub>2</sub>O<sup>+</sup>; OD<sup>+</sup>; <sup>18</sup>OH<sup>+</sup>. 
-  * Apr. 2012: HC<sub>5</sub>N, //v//<sub>11</sub> = 5; HC<sub>3</sub>N, //v//<sub>4</sub> = 1; HC<sub>3</sub>N, //v//<sub>7</sub> = 4 / //v//<sub>5</sub> = //v//<sub>7</sub> = 1; HC<sub>3</sub>N, //v//<sub>6</sub> = 2; corrected and applied transition dipole moment for HCCCN, //v//<sub>1</sub> band. 
-  * Mar. 2012: //AA//-//n//-C<sub>4</sub>H<sub>9</sub>CN, //GA//-//n//-C<sub>4</sub>H<sub>9</sub>CN, //AG//-//n//-C<sub>4</sub>H<sub>9</sub>CN, HC<sub>5</sub>N, //v//<sub>10</sub> = //v//<sub>11</sub> = 1; modified state description of //v//<sub>6</sub> = //v//<sub>7</sub> = 1 for HCCCN as well as its isotopologs with one <sup>13</sup>C. 
-  * Feb. 2012: H<sub>2</sub>D<sup>+</sup>; HD<sub>2</sub><sup>+</sup>; 2-Aminopropionitrile; extended //J// range for SiO, //v// = 0 - 6; <sup>29</sup>SiO, //v// = 0 - 3; <sup>30</sup>SiO, //v// = 0 - 3; Si<sup>18</sup>O, //v// = 0 - 3. 
-  * Jan. 2012: NaCN; Na<sup>13</sup>CN; HCCN; H<sup>13</sup>CCN; HC<sup>13</sup>CN; DCCN; HCC<sup>15</sup>N; reevaluated <strong>c</strong>-H<sub>2</sub>C<sub>3</sub>O entry; omitted redundant quantum numbers in <sup>15</sup>N<sup>34</sup>S entry; corrected code for QNFMT in entries for TiS isotopologs. 
-  * Dec. 2011: SiC<sub>2</sub>, //v// = 0; <sup>29</sup>SiC<sub>2</sub>; <sup>30</sup>SiC<sub>2</sub>; HD; H<sub>2</sub>N<sup>13</sup>CN; HCCCN, //v//<sub>3</sub> band; HCCCN, //v//<sub>2</sub> band; HCCCN, //v//<sub>1</sub> band; added separate //para// and //ortho// entries as well as //ortho// hyperfine entries for H<sub>2</sub>CCO and H<sub>2</sub>CS; updated old D<sub>2</sub>CO entry which supposedly had been updated long time ago; corrected frequency of the //F// = 2 - 1 component of <sup>13</sup>C<sup>+</sup>. 
-  * Nov. 2011: <sup>15</sup>NH<sub>3</sub>; HCCCN, //v//<sub>6</sub> = //v//<sub>7</sub> = 1; H<sup>13</sup>CCCN, //v//<sub>6</sub> = //v//<sub>7</sub> = 1; HC<sup>13</sup>CCN, //v//<sub>6</sub> = //v//<sub>7</sub> = 1; HCC<sup>13</sup>CN, //v//<sub>6</sub> = //v//<sub>7</sub> = 1; HCC<sup>13</sup>CN, //v//<sub>4</sub> = 1; HCC<sup>13</sup>CN, //v//<sub>4</sub> = //v//<sub>7</sub> = 1. 
-  * Oct. 2011: NaCCH; CaCCH; KCCH; LiCCH; corrected ab initio dipole moment of MgCCH. 
-  * Sep. 2011: //cis//-HOSO<sup>+</sup>; HSCO<sup>+</sup>; HOCS<sup>+</sup>; C<sub>2</sub>Cl; C<sub>2</sub><sup>37</sup>Cl; C<sub>3</sub>F; C<sub>3</sub>Cl; //c//-C<sub>3</sub>HCN; C<sub>2</sub>H<sub>3</sub>C<sub>3</sub>N; (//E//)-HC<sub>2</sub>CHCHCN; (//Z//)-HC<sub>2</sub>CHCHCN. 
-  * Aug. 2011: NS, //v// = 0; NS, //v// = 1; NS, //v// = 1 - 0 IR band; N<sup>34</sup>S; N<sup>33</sup>S; <sup>15</sup>NS; <sup>15</sup>N<sup>34</sup>S; N<sup>36</sup>S; separate //ortho// and //para// entries are available for H<sub>2</sub>S isotopologs. 
-  * July 2011: //c//-C<sub>3</sub>H<sub>5</sub>CN; NCO<sup>-</sup>; OSiS. 
-  * June 2011: TiO<sub>2</sub>; <sup>46</sup>TiO<sub>2</sub>; <sup>50</sup>TiO<sub>2</sub>. 
-  * May 2011: D<sub>2</sub>O; NHD<sub>2</sub>; CH<sub>2</sub>DCN; CHD<sub>2</sub>CN. 
-  * Apr. 2011: extended frequency range for hyperfine predictions of HCN, //v// = 0. 
-  * Mar. 2011: //gG'a//-1,2-propanediol; //g'G'g//-1,2-propanediol; //c//-C<sub>3</sub>H<sub>2</sub>; renamed 1,2-propanediol //aG'g//-1,2-propanediol. 
-  * Feb. 2011: NaCl, //v// = 0 - 4; glycolic acid; glyoxylic acid; //i//-C<sub>3</sub>H<sub>7</sub>CN. 
-  * Jan. 2011: KCl, //v// = 0 - 4. 
-  * Dec. 2010: SiH. 
-  * Nov. 2010: N<sub>2</sub>H<sup>+</sup>, v<sub>2</sub>; TiS; <sup>46</sup>TiS; <sup>50</sup>TiS. 
-  * Sep. 2010: HCO<sup>+</sup>, v<sub>2</sub>. 
-  * Aug. 2010: C<sup>+</sup>; <sup>13</sup>C<sup>+</sup>; O atom; N<sup>+</sup>; Si atom; S atom; Si<sup>+</sup>; Al atom; Fe atom; Fe<sup>+</sup>; SiC<sub>2</sub>. 
-  * Aug. 2010: adjusted dipole moments for CCH to old value which turned out to be better; entries for minor isotopologs of CCH may have more lines. 
-  * July 2010: CCH, //v// = 0; CCH, //v//<sub>2</sub> = 1; CCH, //v//<sub>2</sub> = 2; CCH, //v//<sub>3</sub> = 1; CCH, v<sub>2</sub> FIR band; CCH, v<sub>3</sub> IR band; CCH, v<sub>2</sub> + v<sub>3</sub> IR band; CCH, 5v<sub>2</sub> IR band. 
-  * June 2010: H<sub>2</sub>DO<sup>+</sup>; CH<sub>2</sub>D<sup>+</sup>; CH<sub>3</sub>OCH<sub>3</sub>, //v// = 0. 
-  * May 2010: CH<sup>+</sup>, //v// = 1 - 0; CH<sup>+</sup>, //v// = 2 - 0; <sup>13</sup>CH<sup>+</sup>, //v// = 1 - 0; CD<sup>+</sup>, //v// = 1 - 0. 
-  * May 2010: Started to provide separate entries for //para// and //ortho// spin modifications along with separate partition function values: H<sub>2</sub>Cl<sup>+</sup>; H<sub>2</sub><sup>37</sup>Cl<sup>+</sup>; D<sub>2</sub>O. 
-  * Apr. 2010: H<sub>2</sub><sup>37</sup>Cl<sup>+</sup>; CH<sup>+</sup>; <sup>13</sup>CH<sup>+</sup>; CD<sup>+</sup>; <sup>13</sup>CD<sup>+</sup>; <sup>14</sup>CH<sup>+</sup>; CT<sup>+</sup>. 
-  * Mar. 2010: corrected the tag for H<sub>2</sub>Cl<sup>+</sup>. 
-  * Feb. 2010: CF<sup>+</sup>, //v// = 0, 1; <sup>13</sup>CF<sup>+</sup>, //v// = 0, 1; O<sub>2</sub>, a <sup>1</sup>&Delta;; CaO, //v// = 0, 1; CaS, //v// = 0, 1. 
-  * Jan. 2010: O<sub>2</sub>, X <sup>3</sup>&Sigma;<sup>-</sup>, //v// = 0; O<sup>18</sup>O; <sup>18</sup>O<sub>2</sub>; C<sub>3</sub>N<sup>-</sup>; C<sup>13</sup>CH. 
-  * Dec. 2009: AlH; CH<sub>3</sub>CN, //v// = 0; <sup>13</sup>CH<sub>3</sub>CN, //v// = 0; CH<sub>3</sub><sup>13</sup>CN, //v// = 0; CH<sub>3</sub>C<sup>15</sup>N, //v// = 0; CH<sub>2</sub>DCN; <sup>13</sup>CH<sub>3</sub><sup>13</sup>CN. 
-  * Nov. 2009: Benzonitrile (//c//-C<sub>6</sub>H<sub>5</sub>CN); HONC; 1,2-Propanediol; HSCN; H<sub>2</sub>Cl<sup>+</sup>. 
-  * Oct. 2009: C<sub>2</sub>H<sub>3</sub><sup>+</sup>; CH<sub>3</sub>CP. 
-  * Sep. 2009: LiOH; DCO<sup>+</sup>; DNC; HN<sup>13</sup>C. 
-  * Aug. 2009: BO; <sup>10</sup>BO; CCH, //v// = 0; //aa//-diethyl ether; C<sub>2</sub>H<sub>5</sub>CN, //v// = 0; NaOH; KOH; <sup>41</sup>KOH; //ag//-diethyl ether; corrected dipole moment of CH<sup>+</sup>. 
-  * July 2009: HBO; H<sup>10</sup>BO. 
-  * June 2009: CO<sup>+</sup>; CH<sub>3</sub>D; <sup>13</sup>CH<sub>3</sub>D; <strong>l</strong>-C<sub>4</sub>HD; <strong>l</strong>-C<sub>3</sub>HD. 
-  * May 2009: CO, //v// = 1 - 3; CH<sup>+</sup>; HOCN; HC(O)NH<sub>2</sub>; H<sup>13</sup>C(O)NH<sub>2</sub>; HC(O)<sup>15</sup>NH<sub>2</sub>; HC(<sup>18</sup>O)NH<sub>2</sub>; HNCO. 
-  * Apr. 2009: //n//-C<sub>3</sub>H<sub>7</sub>CN; ethyl formate; SH<sup>+</sup>; CCP; <sup>13</sup>CCP; C<sup>13</sup>CP. 
-  * Mar. 2009: C<sub>3</sub>H; C<sub>3</sub>D; N<sub>2</sub>H<sup>+</sup>, //v// = 0; N<sub>2</sub>D<sup>+</sup>; <sup>15</sup>NNH<sup>+</sup>; N<sup>15</sup>NH<sup>+</sup>; <sup>15</sup>NND<sup>+</sup>; N<sup>15</sup>ND<sup>+</sup>; corrected parities for all C<sub>3</sub>H entries. 
-  * Feb. 2009: <sup>13</sup>CCCO; C<sup>13</sup>CCO; CC<sup>13</sup>CO; C<sub>3</sub><sup>18</sup>O; C<sub>2</sub>H<sub>5</sub>C<sup>15</sup>N; CH<sub>3</sub>CHDCN; CH<sub>2</sub>D<sup>ip</sup>CH<sub>2</sub>CN; CH<sub>2</sub>D<sup>oop</sup>CH<sub>2</sub>CN. 
-  * Jan. 2009: C<sub>2</sub>H<sup>-</sup>; C<sub>4</sub>H<sup>-</sup>; CN<sup>-</sup>; HCNO; DCNO; H<sup>13</sup>CNO; HC<sup>15</sup>NO; C<sub>3</sub>O, //v// = 0; C<sub>3</sub>O, //v//<sub>5</sub> = 1. 
-  * Dec. 2008: HCCCHO; //s//-C<sub>2</sub>H<sub>5</sub>CHO; D<sub>2</sub><sup>34</sup>S. 
-  * Nov. 2008: H<sub>2</sub><sup>34</sup>S; H<sub>2</sub><sup>33</sup>S; HD<sup>34</sup>S. 
-  * Nov. 2008: corrected CH<sub>3</sub>D entries because the catalog files did not contain the distortion corrections to the dipole moment. 
-  * Oct. 2008: PH<sub>3</sub>; HDS; &alpha;-alanine, conformer I; &alpha;-alanine, conformer II; H<sub>2</sub>S; D<sub>2</sub>S; C<sub>5</sub>N<sup>-</sup>; CS, //v// = 0 - 4. 
-  * Sep. 2008: <sup>15</sup>NH<sub>2</sub>D; <sup>15</sup>NHD<sub>2</sub>; C<sub>4</sub>H<sup>-</sup>, C<sub>4</sub>D<sup>-</sup>, HD<sup>13</sup>CO; D<sub>2</sub><sup>13</sup>CO. 
-  * Sep. 2008: corrected tag for CCP. As a consequnce, the tag for HS<sub>2</sub> had to be corrected as well. 
-  * Aug. 2008: SH<sup>+</sup>; CH<sub>3</sub>CCH, //v// = 0; CH<sub>3</sub>C<sub>4</sub>H. 
-  * July 2008: CS<sup>+</sup>; HS<sub>2</sub>; BH; C<sub>3</sub>N<sup>-</sup>. 
-  * May 2008: <sup>15</sup>NH<sub>3</sub>; C<sub>2</sub>H<sub>3</sub>CN, //v// = 0; H<sub>2</sub><sup>13</sup>CCHCN, //v// = 0; H<sub>2</sub>C<sup>13</sup>CHCN, //v// = 0; H<sub>2</sub>CCH<sup>13</sup>CN, //v// = 0; H<sub>2</sub>CCHC<sup>15</sup>N. 
-  * April 2008: HeH<sup>+</sup>; PO; CCP; PN; P<sup>15</sup>N; TiO<sub>2</sub>; <sup>46</sup>TiO<sub>2</sub>; <sup>50</sup>TiO<sub>2</sub>; corrected tag for <sup>36</sup>ArH<sup>+</sup>; corrected duplicate lines in c032504.cat and c033502.cat. 
-  * Mar. 2008: DC<sub>3</sub>N, //v// = 0; DC<sub>3</sub>N, //v//<sub>7</sub> = 1; D<sup>13</sup>CCCN; DC<sup>13</sup>CCN; DCC<sup>13</sup>CN; DC<sub>3</sub><sup>15</sup>N; CH<sub>3</sub>D. 
-  * Feb. 2008: H<sub>2</sub>CS. 
-  * Jan. 2008: H<sub>2</sub>DO<sup>+</sup>; HCCD; SiC<sub>2</sub>, //v// = 0; SiC<sub>2</sub>, //v//<sub>3</sub> = 1; SiC<sub>2</sub>, //v//<sub>3</sub> = 2; Si<sup>13</sup>CC; <sup>29</sup>SiC<sub>2</sub>; <sup>30</sup>SiC<sub>2</sub>; H<sub>2</sub>NCH<sub>2</sub>CN. 
-  * Dec. 2007: HCNH<sup>+</sup>; H<sup>13</sup>CNH<sup>+</sup>; NeH<sup>+</sup>; NeD<sup>+</sup>; <sup>22</sup>NeH<sup>+</sup>. 
-  * Nov. 2007: corrected //g//<sub>up</sub> values and a small typographical error in the D<sub>2</sub>O entry. 
-  * Oct. 2007: HCO<sup>+</sup>, //v// = 0; HCO<sup>+</sup>, //v//<sub>2</sub> = 1; H<sup>13</sup>CO<sup>+</sup>; DCO<sup>+</sup>; D<sup>13</sup>CO<sup>+</sup>; HC<sub>3</sub>N, //v//<sub>3</sub> = 1; HC<sub>3</sub>N, //v//<sub>2</sub> = 1; H<sub>3</sub>O<sup>+</sup>. 
-  * Sep. 2007: ArH<sup>+</sup>; ArD<sup>+</sup>; <sup>36</sup>ArH<sup>+</sup>. 
-  * Aug. 2007: SiC<sub>2</sub>, //v// = 0; Si<sup>13</sup>CC; <sup>29</sup>SiC<sub>2</sub>; <sup>30</sup>SiC<sub>2</sub>; SiC<sub>2</sub>, //v//<sub>3</sub> = 1. 
-  * July 2007: corrected coding of the format of the quantum numbers for C<sub>3</sub>H and its isotopic species. Corrected intensity in C<sub>3</sub>N, //v// = 0; the partition function had considered the lowest excited vibrational state, however, the old predictions did not. 
-  * June 2007: HCP, //v// = 0; H<sup>13</sup>CP 
-  * May 2007: NCS; CN<sup>-</sup>; HCN, //v// = 0; HCN, //v//<sub>2</sub> = 1; HCN, //v//<sub>2</sub> = 2; HCN, //v//<sub>2</sub> = 3; HCN, //v//<sub>3</sub> = 1; HCN, //v//<sub>1</sub> = 1; C<sub>2</sub>H<sub>2</sub>, //v//<sub>5</sub> - //v//<sub>4</sub>. 
-  * Apr. 2007: C<sub>2</sub>H<sub>5</sub>CN, //v// = 0; C<sub>2</sub>H<sub>5</sub><sup>13</sup>CN, //v// = 0; CH<sub>3</sub><sup>13</sup>CH<sub>2</sub>CN, //v// = 0; <sup>13</sup>CH<sub>3</sub>CH<sub>2</sub>CN, //v// = 0; NaCN, NaNC; Na<sup>13</sup>CN, NaN<sup>13</sup>C; KCN, KNC; modified ethylenimine and SO<sup>17</sup>O entries. 
-  * Mar. 2007: Si<sup>34</sup>S, //v// = 0 - 2; Si<sup>34</sup>S, //v// = 1 - 0; <sup>30</sup>SiS, //v// = 0 - 2; <sup>30</sup>SiS, //v// = 1 - 0; Si<sup>33</sup>S, //v// = 0, 1 ; <sup>29</sup>Si<sup>34</sup>S, //v// = 0, 1 ; <sup>30</sup>Si<sup>34</sup>S, //v// = 0, 1; <sup>29</sup>Si<sup>33</sup>S; <sup>30</sup>Si<sup>33</sup>S; Si<sup>36</sup>S; <sup>29</sup>Si<sup>36</sup>S; <sup>30</sup>Si<sup>36</sup>S; C<sub>2</sub>H<sup>-</sup> 
-  * Feb. 2007: SiS, //v// = 0 - 5; SiS, //v// = 1 - 0 and //v// = 2 - 1; SiS, //v// = 2 - 0; <sup>29</sup>SiS, //v// = 0 - 2; <sup>29</sup>SiS, //v// = 1 - 0 
-  * Feb. 2007: corrected tags in entries 044510 and 044511; corrected some links to files with hyperfine splitting. 
-  * Jan. 2007: SH<sup>-</sup>; C<sub>4</sub>H<sup>-</sup>; C<sub>8</sub>H<sup>-</sup>; NHD<sub>2</sub>; D<sub>2</sub>O 
-  * Jan. 2007: corrected the degree of freedom in the rotational partition function for several linear molecules; see also the <a href="/cdms/catalog/main_catalog.shtml#description">brief description of the format of the catalog entries</a> in the <a href="/cdms/catalog/main_catalog.shtml">general section</a> of the CDMS catalog. 
-  * Dec. 2006: H<sup>13</sup>C<sup>15</sup>N, //v// = 0; H<sup>13</sup>C<sup>15</sup>N, //v//<sub>2</sub> = 1; OH<sup>-</sup>; OD<sup>-</sup>; <sup>18</sup>OH<sup>-</sup> 
-  * Nov. 2006: <sup>13</sup>CO; C<sub>6</sub>H<sup>-</sup> 
-  * Oct. 2006: H<sub>2</sub>COH<sup>+</sup>; H<sub>2</sub><sup>13</sup>COH<sup>+</sup> 
-  * Sep. 2006: CH<sub>3</sub>OH, //v<sub>t</sub>// = 0, 1; SiN; HNCNH; CH; CS, //v// = 1 - 0 and //v// = 2 - 1; CS, //v// = 2 - 0; <sup>13</sup>CS, //v// = 1 - 0; C<sup>34</sup>S, //v// = 1 - 0 
-  * Aug. 2006: HCNH<sup>+</sup>; CH<sub>3</sub>CNH<sup>+</sup>; S<sub>2</sub>O, //v// = 0 
-  * July 2006: omitted redundant vibrational identifier in c047501.cat and corrected coding of the quantum numbers 
-  * June 2006: H<sub>2</sub>CCNH; HC(O)CN; NCC(O)NH<sub>2</sub>; NO<sup>+</sup>; NCHCCO 
-  * May 2006: DC<sup>15</sup>N; D<sup>13</sup>C<sup>15</sup>N; H<sup>13</sup>CN, //v// = 0; H<sup>13</sup>CN, //v//<sub>2</sub> = 1 
-  * Apr. 2006: Separate //ortho// and //para// transition frequencies are available through links in the documentation files for low energy states of H<sub>2</sub>D<sup>+</sup>; HD<sub>2</sub><sup>+</sup>; CH<sub>2</sub>; NH<sub>2</sub>; NH<sub>2</sub>D 
-  * Apr. 2006: glycine, conf. I; glycine, conf. II; DCN, //v// = 0; DCN, //v//<sub>2</sub> = 1; D<sup>13</sup>CN; corrected QNFMT in c017501.cat, w017501.cat., c027501.cat, w027501.cat, c027503.cat, w027503.cat 
-  * Mar. 2006: C<sub>2</sub>H<sub>2</sub>, //v//<sub>5</sub> - //v//<sub>4</sub>; H<sub>2</sub>CCCHCN; //Ga-n//-C<sub>3</sub>H<sub>7</sub>OH; C<sub>5</sub>H; <strong>l</strong>-<sup>13</sup>CC<sub>3</sub>H<sub>2</sub>; <strong>l</strong>-C<sup>13</sup>CC<sub>2</sub>H<sub>2</sub>; <strong>l</strong>-C<sub>2</sub><sup>13</sup>CCH<sub>2</sub>; <strong>l</strong>-C<sub>3</sub><sup>13</sup>CH<sub>2</sub>; corrected entry for C<sub>3</sub>, v<sub>2</sub> band 
-  * Feb. 2006: H<sub>2</sub>CS; D<sub>2</sub>CS; NaC; H<sub>2</sub>C<sup>34</sup>S; H<sub>2</sub><sup>13</sup>CS; H<sub>2</sub>C<sup>33</sup>S; N<sub>2</sub>D<sup>+</sup>; N<sub>2</sub>H<sup>+</sup>, //v// = 0; N<sub>2</sub>H<sup>+</sup>, //v//<sub>2</sub> = 1 
-  * Jan. 2006: H<sup>13</sup>CCCN, //v//<sub>6</sub> = 1; HC<sup>13</sup>CCN, //v//<sub>6</sub> = 1; HCC<sup>13</sup>CN, //v//<sub>6</sub> = 1; H<sup>13</sup>CCCN, //v//<sub>5</sub> = 1 / //v//<sub>7</sub> = 3; HC<sup>13</sup>CCN, //v//<sub>5</sub> = 1 / //v//<sub>7</sub> = 3; HCC<sup>13</sup>CN, //v//<sub>5</sub> = 1 / //v//<sub>7</sub> = 3; HDC<sub>2</sub>O; D<sub>2</sub>C<sub>2</sub>O 
-  * Dec. 2005: C<sub>3</sub>O<sub>2</sub>, //v//<sub>7</sub>; <sup>13</sup>CC<sub>5</sub>H; C<sup>13</sup>CC<sub>4</sub>H; C<sub>2</sub><sup>13</sup>CC<sub>3</sub>H; C<sub>3</sub><sup>13</sup>CC<sub>2</sub>H; C<sub>4</sub>C<sup>13</sup>CCH; C<sub>5</sub><sup>13</sup>CH; C<sub>6</sub>D; HCC<sup>13</sup>CN, //v//<sub>7</sub> = 2; HC<sup>13</sup>CCN, //v//<sub>7</sub> = 2; H<sup>13</sup>CCCN, //v//<sub>7</sub> = 2 
-  * Nov. 2005: C<sub>2</sub>H<sub>3</sub>NH<sub>2</sub>, within 0<sup>+</sup> &amp; 0<sup>-</sup>; C<sub>2</sub>H<sub>3</sub>NH<sub>2</sub>, 0<sup>-</sup> &larr; 0<sup>+</sup>; OCS, //v// = 0; DNC; C<sub>6</sub>H 
-  * Oct. 2005: DCO<sup>+</sup>; HCO<sup>+</sup>, //v// = 0; HCO<sup>+</sup>, //v//<sub>2</sub> = 1; D<sup>13</sup>CO<sup>+</sup>; DC<sup>18</sup>O<sup>+</sup>; CH<sub>3</sub>CCNC; HC<sub>5</sub>N, //v//<sub>7</sub>; corrected small error in predicted frequency uncertainties of c032503.cat and w032503.cat 
-  * Sep. 2005: HD, //v// = 0, 1; C; <sup>13</sup>C; CF<sup>+</sup>, //v// = 0, 1; CH<sub>2</sub>; C<sub>4</sub>D 
-  * Aug. 2005: HC<sup>15</sup>N, //v// = 0; HC<sup>15</sup>N, //v//<sub>2</sub> = 1; HD<sub>2</sub><sup>+</sup>; H<sub>2</sub>D<sup>+</sup>; H<sub>2</sub>CO; <sup>29</sup>SiC<sub>4</sub>; Si<sup>13</sup>CC<sub>3</sub>; SiC<sup>13</sup>CC<sub>2</sub>; SiC<sub>2</sub><sup>13</sup>CC; SiC<sub>3</sub><sup>13</sup>C; <sup>30</sup>SiC<sub>4</sub> 
-  * July 2005: SO<sub>2</sub>, //v// = 0; SO<sub>2</sub>, //v//<sub>2</sub> = 1; SO<sub>2</sub>, //v//<sub>2</sub> 
-  * May 2005: CN, //v// = 0, 1; <sup>13</sup>CN; C<sup>15</sup>N; <sup>13</sup>C<sup>15</sup>N; CH<sub>3</sub>CCH, //v//<sub>10</sub>; CH<sub>3</sub>CCH, //v//<sub>9</sub>; corrected tags in c026503.cat 
-  * April 2005: OCS, //v// = 0; OCS, //v//<sub>2</sub> = 1; OC<sup>34</sup>S; O<sup>13</sup>CS; OC<sup>33</sup>S; <sup>18</sup>OCS; <sup>17</sup>OCS; O<sup>13</sup>C<sup>34</sup>S; OC<sup>36</sup>S; O<sup>13</sup>C<sup>33</sup>S; <sup>18</sup>OC<sup>34</sup>S; <sup>18</sup>O<sup>13</sup>CS; corrected tags in c040504.cat, w040504.cat 
-  * Mar. 2005: H<sub>2</sub>C<sub>2</sub>N; H<sub>2</sub>C<sub>4</sub>N; DC<sub>3</sub>N, //v//<sub>7</sub> = 1; H<sup>13</sup>CCCN, //v//<sub>7</sub> = 1; HC<sup>13</sup>CCN, //v//<sub>7</sub> = 1; HCC<sup>13</sup>CN, //v//<sub>7</sub> = 1; HC<sub>3</sub><sup>15</sup>N, //v//<sub>7</sub> = 1; minor modification of DC<sub>3</sub>N entry; corrected tags in c016502.cat, w016502.cat, and c050503.cat 
-  * Feb. 2005: N<sub>2</sub>H<sup>+</sup>; <sup>15</sup>NNH<sup>+</sup>; N<sup>15</sup>NH<sup>+</sup>; N<sub>2</sub>D<sup>+</sup>; HNCS; separated HNC, //v//<sub>2</sub> = 0, 1 and updated //v// = 0 entry 
-  * Dec. 2004: H<sup>13</sup>C<sup>13</sup>CCN; H<sup>13</sup>CCCN; HC<sup>13</sup>CCN; HCC<sup>13</sup>CN; HCCC<sup>15</sup>N; HC<sup>18</sup>O<sup>+</sup>; HC<sub>6</sub>N, adjusted HC<sub>4</sub>N 
-  * Nov. 2004: HC<sub>5</sub>N, //v//<sub>11</sub> = 1; HC<sub>5</sub>N, //v//<sub>11</sub> = 2; HC<sub>5</sub>N, //v//<sub>10</sub> = 1; HC<sub>5</sub>N, //v//<sub>11</sub> = 3; HC<sub>5</sub>N, //v//<sub>11</sub> = 4; HC<sub>5</sub>N, //v//<sub>9</sub> = 1 
-  * Oct. 2004: D<sub>2</sub>CO; HC<sub>7</sub>N, v = 0; HC<sub>7</sub>N, //v//<sub>15</sub> = 1; HC<sub>7</sub>N, //v//<sub>15</sub> = 2; HC<sub>11</sub>N; H<sup>13</sup>CC<sub>4</sub>N; HC<sup>13</sup>CC<sub>3</sub>N; HC<sub>2</sub><sup>13</sup>CC<sub>2</sub>N; HC<sub>3</sub><sup>13</sup>CCN; HC<sub>4</sub><sup>13</sup>CN; HC<sub>5</sub><sup>15</sup>N; adjusted HC<sub>9</sub>N, HC<sub>5</sub>N, //v// = 0, and DC<sub>5</sub>N 
-  * Sep. 2004: NHD<sub>2</sub>; DC<sub>3</sub>N; DC<sub>7</sub>N; H<sup>13</sup>CC<sub>6</sub>N; HC<sup>13</sup>CC<sub>5</sub>N; HC<sub>2</sub><sup>13</sup>CC<sub>4</sub>N; HC<sub>3</sub><sup>13</sup>CC<sub>3</sub>N; HC<sub>4</sub><sup>13</sup>CC<sub>2</sub>N; HC<sub>5</sub><sup>13</sup>CCN; HC<sub>6</sub><sup>13</sup>CN; HC<sub>7</sub><sup>15</sup>N; adjusted HC<sub>7</sub>N, //v// = 0 
-  * Aug. 2004: HC<sub>5</sub>N, //v// = 0; DC<sub>5</sub>N; C<sub>3</sub>H; C<sub>3</sub>D; <sup>13</sup>CCCH; C<sup>13</sup>CCH; CC<sup>13</sup>CH 
-  * July 2004: corrected some links. 
-  * July 2004: CH<sub>2</sub>D<sup>+</sup>; KCl; K<sup>37</sup>Cl; <sup>41</sup>KCl 
-  * June 2004: <strong>c</strong>-C<sub>3</sub>H<sub>4</sub>; butenyne (C<sub>4</sub>H<sub>4</sub>); methylenecyclopropene {(<strong>c-</strong>C<sub>3</sub>H<sub>2</sub>)CH<sub>2</sub>} 
-  * May 2004: HDCS; NH; //gGg'// ethylene glycol; NH<sub>2</sub>D 
-  * Apr. 2004: CCH, //v//<sub>2</sub> = 1; (CCH, //v// = 0); <sup>13</sup>C<sup>33</sup>S; <sup>13</sup>C<sup>36</sup>S; CH<sub>3</sub>C<sub>8</sub>H; CH<sub>3</sub>C<sub>7</sub>N; CH<sub>3</sub>C<sub>9</sub>N; (CH<sub>3</sub>C<sub>3</sub>N); HD<sub>2</sub><sup>+</sup> 
-  * Mar. 2004: HOC<sup>+</sup>, //v//<sub>2</sub> = 0; HOC<sup>+</sup>, //v//<sub>2</sub> = 1; DOC<sup>+</sup>; NiCO; (FeCO); NiO; (NiC); (CoC) 
-  * Feb. 2004: The catalog files are also available directly as plain ascii files. 
-  * Feb. 2004: H<sup>13</sup>CO<sup>+</sup>; HC<sup>17</sup>O<sup>+</sup>; benzyne; ND 
-  * Jan. 2004: H<sub>2</sub>C<sub>3</sub>H; CS, //v// = 0 - 2; C<sup>34</sup>S, //v// = 0, 1; <sup>13</sup>CS, //v// = 0, 1; C<sup>33</sup>S, //v// = 0, 1; C<sup>36</sup>S; <sup>13</sup>C<sup>34</sup>S 
-  * Dec. 2003: C<sub>3</sub>N, //v// = 0; C<sub>3</sub>N, //v//<sub>5</sub> = 1; <sup>13</sup>CCCN; C<sup>13</sup>CCN; CC<sup>13</sup>CN; C<sub>3</sub><sup>15</sup>N; AlCN; altered AlNC entry 
-  * Nov. 2003: //aa//-(C<sub>2</sub>H<sub>5</sub>)<sub>2</sub>O; TiO; H<sub>2</sub>C<sub>2</sub>O; H<sub>2</sub>C<sup>13</sup>CO; H<sub>2</sub><sup>13</sup>CCO; H<sub>2</sub>C<sub>2</sub><sup>18</sup>O; HDC<sub>2</sub>O; D<sub>2</sub>C<sub>2</sub>O 
-  * Nov. 2003: indicated detection of species in ISM/CSM in remaining documentations. Please feel free to report errors with references. Corrected some relative terrestrial (!) isotopic abundances. 
-  * Oct. 2003: H<sub>2</sub>CCN 
-  * Sep. 2003: //aGg'// ethylene glycol 
-  * Aug. 2003: C<sub>2</sub>N; ONCN; HPO; HCS; HSC 
-  * Aug. 2003: The catalog directory is given in html format. 
-  * July 2003: t-HCOOH; c-HCOOH; t-H<sup>13</sup>COOH; TiN; NCO 
-  * June 2003: HCS<sup>+</sup>; H<sup>13</sup>CS<sup>+</sup>; DCS<sup>+</sup>; HC<sup>34</sup>S<sup>+</sup> 
-  * Apr. 2003: OH<sup>+</sup>; HC<sub>13</sub>N; t-HC<sub>3</sub>O; ScCl; Sc<sup>37</sup>Cl 
-  * Mar. 2003: NH<sub>2</sub>OH; H<sub>2</sub>CO; NCS; ScF 
-  * Feb. 2003: H<sup>13</sup>CC<sup>13</sup>CN; C<sub>3</sub>, v<sub>2</sub>; NaF, //v// = 0, 1; KF, //v// = 0, 1; HCN, //v// = 0; HCN, //v//<sub>2</sub> = 1 
-  * Jan. 2003: C<sup>17</sup>O; <sup>13</sup>C<sup>17</sup>O; CH<sub>3</sub>CCH, //v// = 0; CH<sub>3</sub>CCH, //v//<sub>10</sub> = 1; butenyne (C<sub>4</sub>H<sub>4</sub>); HCC<sup>13</sup>C<sup>15</sup>N; HC<sup>13</sup>C<sup>13</sup>CN 
-  * Dec. 2002: CH<sub>3</sub>OH; <sup>13</sup>CH<sub>3</sub>OH 
-  * Nov. 2002 ff: add note to documentation whether species has been observed in ISM or CSM (interstellar or circumstellar medium). 
-  * Oct. 2002: NaC; CaC; H<sub>2</sub>C<sub>3</sub>S; l-H<sub>2</sub>C<sub>3</sub>O 
-  * Sep. 2002: HCN, //v// = 0; NaCl, //v// = 0, 1; Na<sup>37</sup>Cl, //v// = 0, 1; CH<sub>3</sub>C<sub>5</sub>N; CH<sub>3</sub>C<sub>4</sub>H; CH<sub>3</sub>C<sub>6</sub>H 
-  * June 2002: H<sub>2</sub>C<sub>2</sub>S; ND<sub>3</sub>; l-C<sub>3</sub>H<sub>2</sub>; l-<sup>13</sup>CCCH<sub>2</sub>; l-C<sup>13</sup>CCH<sub>2</sub>; l-CC<sup>13</sup>CH<sub>2</sub> 
-  * May 2002: l-C<sub>4</sub>H<sub>2</sub>; l-C<sub>5</sub>H<sub>2</sub>; l-C<sub>6</sub>H<sub>2</sub>; l-C<sub>7</sub>H<sub>2</sub> 
-  * Apr. 2002: CH<sub>3</sub>CCD; CH<sub>2</sub>DCCH 
-  * Feb. 2002: l-H<sub>2</sub>C<sub>3</sub>O; CuH; <sup>65</sup>CuH; ZnH; <sup>66</sup>ZnH; <sup>68</sup>ZnH 
-  * Jan. 2002: SiCN; SiNC; SiCCH 
-  * Dec. 2001: C<sub>3</sub>S; C<sup>13</sup>CCS; <sup>13</sup>CCCS; C<sub>3</sub><sup>34</sup>S; FeCO 
-  * Nov. 2001: Added remarks on the existence of more than one spin state where applicable. This may be important at low temperatures. 
-  * Nov. 2001: PH<sub>2</sub>; CCS; C<sub>4</sub>S; l-C<sub>7</sub>H<sub>2</sub> 
-  * Oct. 2001: NH<sub>2</sub>; s-H2C=CHOH; a-H2C=CHOH 
-  * Sep. 2001: CaF; CaCl; CoC; NiC 
-  * Aug. 2001: PNO; HPO; PH; H<sub>2</sub>CP 
-  * July 2001: <sup>13</sup>CCCCH; C<sup>13</sup>CCCH; CC<sup>13</sup>CCH; CCC<sup>13</sup>CH 
-  * June 2001: C<sup>18</sup>O; HC<sub>7</sub>N; CH<sub>2</sub>(OH)CHO; HC<sub>9</sub>N 
-  * May 2001: MgH; HCNH<sup>+</sup>; HCND<sup>+</sup>; HC<sub>4</sub>NC 
-  * Feb. 2001: The tags for H<sub>2</sub>C<sup>18</sup>O and for <sup>13</sup>C<sup>18</sup>O have changed because of a wrong tag for the former. 
-  * Jan. 2001: Each documentation contains a stick diagram of the spectrum at 300 K. 
-  * Jan. 2001: KC; NaCH; KCH; NaH; KH; SiCN 
-  * Dec. 2000: HC<sub>3</sub>N, //v//<sub>6</sub> = //v//<sub>7</sub> = 1; SiO; <sup>29</sup>SiO; <sup>30</sup>SiO; Si<sup>18</sup>O; HNC, //v//<sub>2</sub> = 0, 1; HC<sub>3</sub>NH<sup>+</sup> 
-  * Nov. 2000: SiC<sub>4</sub>; //l//-SiC<sub>3</sub>; SiC<sub>5</sub>; SiC<sub>6</sub>; MgCCH; NaCCH 
-  * Oct. 2000: HC<sub>3</sub>N, //v// = 0, //v//<sub>7</sub> = 1, //v//<sub>7</sub> = 2, //v//<sub>6</sub> = 1, //v//<sub>4</sub> = 1, //v//<sub>4</sub> = //v//<sub>7</sub> = 1; HC<sub>3</sub>P; NC<sub>2</sub>P; H<sub>2</sub>C<sub>2</sub>O; CO, //v// = 0 
-  * Sep. 2000: C<sub>2</sub>H<sub>3</sub>NH<sub>2</sub> (vinylamine); CH<sub>2</sub>(OH)CHO (glycolaldehyde); C<sub>4</sub>H, //v// = 0, //v//<sub>7</sub> = 1, //v//<sub>7</sub> = 2<sup>0</sup>, //v//<sub>7</sub> = 2<sup>2</sup>; C<sub>4</sub>D 
-  * Aug. 2000: TiO; FeC 
-  * July 2000: <sup>13</sup>C<sup>18</sup>O; H<sub>2</sub>CN; C<sub>8</sub>H; C<sub>7</sub>H; C<sub>9</sub>H; C<sub>10</sub>H; 
-  * June 2000: MgF; MgCl; CH<sub>3</sub>C<sub>3</sub>N 
-  * May 2000: <sup>13</sup>CCH, C<sup>13</sup>CH; H<sub>2</sub><sup>13</sup>CO; CF; MgNC, //v//<sub>2</sub> = 0; //l//-H<sub>2</sub>C<sub>5</sub>; //l//-H<sub>2</sub>C<sub>6</sub> 
-  * April 2000: CCH; CCD; HCN, //v// = 0; H<sup>13</sup>CN; H<sub>2</sub>COH<sup>+</sup>; //l//-HC<sub>4</sub>N; <sup>13</sup>CO 
-  * Some catalog entries are available with frequencies in units of cm<sup>-1</sup>. This applies mainly to light hydrides and some stable molecules that might be of interest as secondary standards. 
- 
- 
-===== General Section ===== 
- 
-  * Jan. 2007: added Remarks on Selection Rules. 
- 
-===== Catalog Search Form ===== 
- 
-  * Sep. 2011: new molecule group: halogen compounds. 
-  * Feb. 2011: new molecule group: complex molecules. 
-  * Aug. 2010: new molecule group: atomic fine structure. 
-  * Dec. 2009: new molecule group: metal compounds. 
-  * Jan. 2007: new molecule group: Anions. 
-  * Mar. 2006: new molecule groups: C<sub>n</sub>H and C<sub>n</sub>H<sub>2</sub>. 
-  * Oct. 2005: new sorting criterion available: lower state energy; optimized conversion - apparently with minute effects 
-  * Aug. 2005: corrected //y//-axis labeling in graphic output. 
-  * June 2005: New conversion option //I// &rarr; //S&micro;//<sup>2</sup> is available. Output of value is possible for intensity //I//, //A//-value, or line strength //S&micro;//<sup>2</sup> instead of decadic logarithm of value (default). This afforded more characters for some columns. 
-  * Dec. 2004: Defined several new special groups. 
-  * Nov. 2004: Several smaller changes in the appearance. 
-  * Sep. 2004: Corrected a bug that temporarily prevented search output from being created. Minor modification of graphical output. 
-  * Feb. 2004: New search option available: Searches are possible within a predefined group of species, e.g. only those already observed in the ISM or CSM besides searching for all molecules in the database or specified ones. 
-  * Sep. 2003: Added additional output option and removed small bugs. 
-  * Aug. 2003: Several changes; including default values for all selections except the molecules. Output as text can be sorted by species (followed by frequency), be frequency, or by intensity. Graphic output has been optimized. 
-  * July 2003: Removed bug that caused wrong A values if frequencies were requested in units of cm<sup>-1</sup> and another one that took the decadic logarithm of lg(S&micro;<sup>2</sup>). Minor modification of search page. 
-  * Mar. 2001: The //A// value (base 10 logarithm) can be requested instead of the intensity at a certain temperature. 
-  * Feb. 2001: A recalculation of the intensities of a search output can be requested for 300 (default), 225, 150, 75, 37.5, 18.75, and 9.375 K.<br /> 
-A specific species may be highlighted in a graphic output. 
-  * Jan. 2001: added graphic output option: stick diagram of the spectrum in the requested region. 
-  * Dec. 2000: added some checks of the input 
-  * May  2000: removed a bug that gave no output for some entries 
-  * May  2000: added head to the output that gives some information on the catalog entries 
- 
-===== Partition Functions ===== 
- 
-  * Aug. 2003: A new subsection has been added which gives the decadic logarithm of the partition function at selected temperatures. 
- 
-===== Molecules in Space ===== 
- 
-  * Dec. 2017: added HC<sub>7</sub>O, methoxymethanol, and HS<sub>2</sub> with documentations; added HCCNC and HNC<sub>3</sub> documentations; updated SiS documentation; omitted HC<sub>11</sub>N from the table. 
-  * Nov. 2017: added extragalactic SH<sup>+</sup> with documentation; updated extragalactic CH<sup>+</sup> documentation. 
-  * Oct. 2017: added CH<sub>3</sub>Cl; SiH<sub>3</sub>CN; and CH<sub>3</sub>SiH<sub>3</sub> with documentations; updated //c//-C<sub>3</sub>H; CH<sub>3</sub>CN; formamide; CH<sub>3</sub>CHO; C<sub>6</sub>H<sub>2</sub>; C<sub>7</sub>H; and CH<sub>3</sub>C<sub>4</sub>H documentations. 
-  * Aug. 2017: updated propyl cyanides and extragalactic C<sub>2</sub>S and H<sub>2</sub>CNH documentations. 
-  * July 2017: added HC<sub>5</sub>O with documentation; added tentative detection of N-methylformamide with documentation; updated SiS and CH<sub>3</sub>NCO documentations. 
-  * May 2017: updated H<sub>3</sub><sup>+</sup> documentation. 
-  * Mar. 2017: updated titanium oxides documentation. 
-  * Jan. 2017: added formaldehyde documentation and updated ethylene oxide, acetone, and propanal entries. 
-  * Nov. 2016: added N<sub>2</sub> with documentation; updated HCS<sup>+</sup>, formic acid, ethanol, methyl formate, glycolaldehyde, ethanediol, //n//-propyl cyanide, and HC<sub>11</sub>N documentations. 
-  * Aug. 2016: added PN documentation; updated PO, AlO, and HOCO<sup>+</sup> documentations. 
-  * July 2016: updated CH<sub>3</sub>SH documentation. 
-  * June 2016: added propylene oxide with documentation; updated HNCO, formamide, and ethyl cyanide documentations. 
-  * Apr. 2016: added extragalactic CF<sup>+</sup> with documentation, updated hydroxymethylium documentation. 
-  * Mar. 2016: added methylamine documentation; updated CH<sub>3</sub>NCO documentation. 
-  * Feb. 2016: added documentation on //l//-C<sub>3</sub>H<sub>2</sub> and on //l//-C<sub>4</sub>H<sub>2</sub>; updated propynal, cyclopropenone, and methoxy documentations. 
-  * Dec. 2015: updated H<sub>3</sub><sup>+</sup>, SH<sup>+</sup>, and SH entries. 
-  * Oct. 2015: added CH<sub>3</sub>NCO, C<sub>60</sub><sup>+</sup>, and extragalactic ArH<sup>+</sup>; updated ethyl methyl ether. 
-  * July 2015: added NCCNH<sup>+</sup> with documentation; added HCNH<sup>+</sup> and HC<sub>3</sub>NH<sup>+</sup> documentations. 
-  * June 2015: added Si<sub>2</sub>C with documentation. 
-  * May 2015: added HCCO with documentation; added documentations for HCO and //c//-SiC<sub>3</sub>; updated propene and CF<sup>+</sup> entries. 
-  * Apr. 2015: updated ethanediol entry. 
-  * Feb. 2015: relegated tentatively detected ethyl methyl ether to undetected molecule. 
-  * Dec. 2014: Added SiO documentation. 
-  * Nov. 2014: Updated dimethyl ether and vinyl cyanide documentations. 
-  * Oct. 2014: Added //i//-propyl cyanide, cyanomethylidyne, and nitrosylium (tentative) with documentations. 
-  * July 2014: Added extragalactic NH<sub>2</sub> with documentation; updated documentations for galactic PH<sub>3</sub> and SH<sup>+</sup>. 
-  * June 2014: Added C<sub>2</sub>H<sub>5</sub>SH and extragalactic H<sub>2</sub>Cl<sup>+</sup> with documentations; updated ArH<sup>+</sup> documentation. 
-  * Feb. 2014: Updated documentation for //l//-C<sub>3</sub>H<sup>+</sup>. 
-  * Jan. 2014: Combined H<sub>3</sub><sup>+</sup> entry with that for H<sub>2</sub>D<sup>+</sup> and HD<sub>2</sub><sup>+</sup> for consistency reasons and updated the entry. Also updated were documentations on HNC, including extragalactic, and acetaldehyde. 
-  * Dec. 2013: added ArH<sup>+</sup> with documentation; updated OH<sup>+</sup> and H<sub>2</sub>O<sup>+</sup> documentations. 
-  * Nov. 2013: added H<sub>2</sub>NCO<sup>+</sup> with documentation; updated HF and HCl documentations. 
-  * Sep. 2013: added HMgNC with documentation. 
-  * July 2013: added methyl acetate with documentation; updated ethyl formate and C<sub>3</sub>H<sup>+</sup> documentations; created separate propyl cyanide documentation. 
-  * June 2013: added ammonium with documentation; updated //c//-SiC<sub>2</sub> and extragalactic fullerenes entries. 
-  * May 2013: updated dimethyl ether, //c//-C<sub>3</sub>H<sub>2</sub>, and C<sub>3</sub>H<sup>+</sup> documentations. 
-  * Apr. 2013: added Extragalactic formamide and HCS<sup>+</sup>; updated Extragalactic HF, OH<sup>+</sup>, H<sub>2</sub>O<sup>+</sup>, and H<sub>3</sub>O<sup>+</sup> documentations. 
-  * Mar. 2013: added TiO and TiO<sub>2</sub> with documentations. 
-  * Feb. 2013: added ethanimine and cyanomethanimine with documentations; updated formamide documentation. 
-  * Nov. 2012: added C<sub>3</sub>H<sup>+</sup> with documentation; added documentation for HCO<sup>+</sup>; updated documentations on methyl formate and CF<sup>+</sup>. 
-  * Oct. 2012: added HNCNH and CH<sub>3</sub>O with documentations. 
-  * Sep. 2012: added documentations for SiC, C<sub>2</sub>S, and C<sub>3</sub>S; updated documentation for glycolaldehyde; provided additional information for CCO. 
-  * Aug. 2012: added documentations for C<sub>6</sub>H<sub>2</sub>, CH<sub>3</sub>C<sub>3</sub>N, and for oxirane, //c//-C<sub>2</sub>H<sub>4</sub>O; corrected documentation for formamide; updated documentations for methyl formate and for CH<sub>3</sub>C<sub>5</sub>N. 
-  * July 2012: updated documentations for HF, HCOOH, ethanol, dimethyl ether, methyl formate, glycolaldehyde, ethylene glycol. 
-  * May 2012: added SH, HCl<sup>+</sup>, and HO<sub>2</sub> with documentations, updated O<sub>2</sub> documentation; added Extragalactic SO<sup>+</sup>, //l//-C<sub>3</sub>H, //l//-C<sub>3</sub>H<sub>2</sub>, H<sub>2</sub>CCN, H<sub>2</sub>CCO, C<sub>4</sub>H, CH<sub>3</sub>NH<sub>2</sub>, CH<sub>3</sub>CHO, mono-, di-, triacetylene, and benzene with documentations. 
-  * Apr. 2012: added HNC, HC<sub>7</sub>N, and vinyl alcohol documentations; updated and extended the one for glycolaldehyde. 
-  * Mar. 2012: added further details for HNCO, HOCO<sup>+</sup>, H<sub>2</sub>CNH, H<sub>2</sub>C<sub>2</sub>O, CH<sub>3</sub>CHO, and C<sub>2</sub>H<sub>3</sub>CN, and H<sub>2</sub>Cl<sup>+</sup>. 
-  * Jan. 2012: added C<sub>2</sub>H documentation; updated C<sub>60</sub> documentation (both Galactic as well as Extragalactic); provided additional information in HC<sub>2</sub>N / HC<sub>4</sub>N documentation. 
-  * Dec. 2011: added cyanamide documentation; updated acetamide documentation. 
-  * Sep. 2011: added documentations for //c//-C<sub>3</sub>H and //l//-C<sub>3</sub>H; updated HCS<sup>+</sup>. 
-  * Aug. 2011: added documentation for NS; updated HCl, HF, and O<sub>2</sub>. 
-  * July 2011: added documentation for H<sub>2</sub>CS and updated the one for H<sub>2</sub>CCN. 
-  * June 2011: added H<sub>2</sub>O<sub>2</sub>; updated HCN, polyacetylenes, and C<sub>60</sub>; added extragalactic C<sub>60</sub>. 
-  * May 2011: added FeCN; updated H<sub>3</sub>O<sup>+</sup>. 
-  * Apr. 2011: added KCN; added documentations for MgNC and MgCN; updated documentations for CH<sup>+</sup>, NH, and methyl formate. 
-  * Mar. 2011: added documentations for SiC<sub>2</sub> and //c//-C<sub>3</sub>H<sub>2</sub>. 
-  * Jan. 2011: added documentation for acetylene, updated and modified those for di- and triacetylene, and modified the one for benzene. 
-  * Dec. 2010: added SH<sup>+</sup> and Extragalactic HF; updated interstellar HF. 
-  * Oct. 2010: added H<sub>2</sub>Cl<sup>+</sup>, C<sub>60</sub>, and C<sub>70</sub> as well as Extragalactic NH, OH<sup>+</sup>, and H<sub>2</sub>O<sup>+</sup>; added documentations for CH<sub>3</sub>SH and dimethyl ether and updated the one for C<sub>2</sub>H<sub>5</sub>CN. 
-  * Aug. 2010: added documentations for C<sub>3</sub>, C<sub>5</sub>, and C<sub>4</sub>Si; updated OH<sup>+</sup>. 
-  * July 2010: added OH<sup>+</sup>, H<sub>2</sub>O<sup>+</sup>, CN<sup>-</sup>; updated Extragalactic CO<sup>+</sup> and HC<sub>3</sub>N. 
-  * May 2010: updated HOCN documentation. Omitted SH because the detection refers to the stellar atmosphere. 
-  * Mar. 2010: added AlOH. 
-  * Jan. 2010: added documentation for CH<sub>3</sub>CN and updated documentation for NH<sub>3</sub>. 
-  * Nov. 2009: added documentations for ethanol and ethanal. 
-  * Sep. 2009: added HSCN; added documentation for HNCS. 
-  * June 2009: updated documentation for HC<sub>9</sub>N. 
-  * May 2009: added HOCN; added documentation for HNCO, HC(O)NH<sub>2</sub>, and CO<sup>+</sup>; updated documentation for formic acid. 
-  * Apr. 2009: added ethyl formate and //n//-propyl cyanide as well as links to a MPIfR press release; updated aminoacetonitrile. 
-  * Mar. 2009: added AlO. 
-  * Feb. 2009: added HCNO. 
-  * Oct. 2008: added C<sub>5</sub>N<sup>-</sup>; added H<sub>2</sub>S and SiH<sub>4</sub> documentations, modified the one for HC<sub>11</sub>N, and updated the one for C<sub>6</sub>H. 
-  * June 2008: added tentative detection of PH<sub>3</sub>; updated SiS and vinyl cyanide documentations. 
-  * Apr. 2008: added C<sub>3</sub>N<sup>-</sup>. 
-  * Mar. 2008: added HC(O)CN; added HOCO<sup>+</sup> documentation. 
-  * Jan. 2008: added extragalactic H<sub>3</sub>O<sup>+</sup>; added aminoacetonitrile; added H<sub>3</sub>O<sup>+</sup> documentation; updated entries for C<sub>6</sub>H<sup>-</sup> and C<sub>4</sub>H<sup>-</sup>. 
-  * Aug. 2007: added C<sub>3</sub>C<sub>6</sub> and PO. 
-  * July 2007: added C<sub>8</sub>H<sup>-</sup>. 
-  * May 2007: added C<sub>4</sub>H<sup>-</sup> and HCP; added documentation to C<sub>4</sub>H, C<sub>5</sub>H, C<sub>7</sub>H, C<sub>8</sub>H, and to CP. 
-  * Apr. 2007: added documentation to H<sub>2</sub>O and NaCN; updated ethyl cyanide and O<sub>2</sub> documentations. 
-  * Mar. 2007: added documentations to HCl, HF, NH, NH<sub>2</sub>; updated HCN and ethyl cyanide documentations; modified CH<sup>+</sup> documentation. 
-  * Feb. 2007: added documentation to SiS and methyl formate; modified documentation to formic acid. 
-  * Nov. 2006: added C<sub>6</sub>H<sup>-</sup> and documentation to C<sub>6</sub>H. 
-  * Oct. 2006: added documentation to H<sub>2</sub>COH<sup>+</sup>. 
-  * June 2006: added H<sub>2</sub>CCNH and SiH with comments; added comments to H<sub>2</sub>CCO; H<sub>2</sub>CNH; updated NH<sub>3</sub> 
-  * May 2006: modified placement of glycine and added comments on not-yet-detection of dihydroxyacetone. 
-  * Apr. 2006: added 1,3,5-heptatriyne and acetamide 
-  * Feb. 2006: added cyanoallene, cyclopropenone, and ethyl methyl ether; added documentations to SiN, CH<sub>2</sub>, HC<sub>9</sub>N, HC<sub>11</sub>N, and acetone; updated the ones for O<sub>2</sub>, CH<sup>+</sup>, and glycolaldehyde 
-  * Dec. 2005: updated ethylene glycol entry 
-  * Sep. 2005: a new table is available. It contains molecules detected outside of our galaxis. Links with some basic information on the detection is given for all species. 
-  * Sep. 2005, ISM/CSS: added documentations to CF<sup>+</sup>, CH<sub>3</sub>C<sub>5</sub>N, and AlNC. 
-  * Dec. 2004: erased CH<sub>2</sub>D<sup>+</sup> because no information is available in the literature; added information on NH<sub>3</sub> and updated glycine. 
-  * Nov. 2004: added SiNC and l-HC<sub>4</sub>N as well as information on these and related SiCN and HCCN species. 
-  * Sep. 2004: updated information on glycolaldehyde 
-  * July 2004: added propenal, propanal, information on these species and on propynal, methyldiacetylene, and ethyl cyanide 
-  * May 2004: updated information on ethylene glycol 
-  * Apr. 2004: added information on HCN and H<sub>2</sub>D<sup>+</sup>/HD<sub>2</sub><sup>+</sup> 
-  * Dec. 2003: added information on CCO, C<sub>2</sub>H<sub>3</sub>CN, C<sub>5</sub>N, H<sub>2</sub>CCN, HCS<sup>+</sup>, O<sub>2</sub> 
-  * Oct. 2003: updated glycine comment and added comments to HC<sub>4</sub>H, HC<sub>6</sub>H, and benzene. 
-  * Sep. 2003: added glycine and comments to some entries. 
-  * Jan. 2001: A new section has been added to the Cologne Database for Molecular Spectroscopy which lists the known molecules in space. Currently, &quot;only&quot; this list is presented. Links to the catalog entries and to some basic background information is intended. 
- 
-===== Fitting Spectra ===== 
- 
-  * Apr. 2015: added NO files. 
-  * May 2012: added updated //c//-C<sub>3</sub>H<sub>2</sub> files. 
-  * Feb. 2012: added SF<sub>2</sub>. 
-  * Mar. 2011: added //c//-C<sub>3</sub>H<sub>2</sub>. 
-  * Nov. 2010: added CH<sub>2</sub> files; moved D<sub>2</sub>O files from data section to this section. 
-  * Aug. 2010: updated HNC, //v//<sub>2</sub> = 0 &amp; 1 files. 
-  * June 2010: updated and corrected C<sub>3</sub>H files and documentation according to the catalog entry from March 2009. 
-  * Jan. 2010: added O<sub>2</sub>, X <sup>3</sup>&Sigma;<sup>-</sup>, //v// = 0; CH<sub>3</sub>CN, v = 0; and FSO<sub>3</sub>. Documentations will follow later. 
-  * Oct. 2008: added NF<sub>2</sub> files with some documentation. 
-  * Aug. 2008: updated files are available for CH<sub>3</sub>CCH, v = 0, in a separate folder. The remaining files will be updated in the near future. 
-  * May 2007: new source codes are available. They have been tested to some extent. 
-  * Feb. 2007: added SiS. 
-  * Jan. 2007: added D<sub>2</sub>O. 
-  * Sep. 2006: updated CH 
-  * Sep. 2006: new source codes are available. They have been tested to some extent. 
-  * June 2006: added HCOCN 
-  * May 2006: new source codes are available. They have been tested to some extent. 
-  * Nov. 2005: modified vinylamine files and added documentation. 
-  * Aug. 2005: added OH<sup>+</sup> files; updated HD<sub>2</sub><sup>+</sup> files; 
-  * Jan. 2005: added CO files with line uncertainties multiplied by 100. 
-  * Aug. 2004: updated C<sub>3</sub>H 
-  * July 2004: added KCl 
-  * May 2004: added NH; //aGg'// ethylene glycol; DCN 
-  * Apr. 2004: added HD<sub>2</sub><sup>+</sup> example; new source codes are available 
-  * Mar. 2004: added NiO example; modified HCP example; added HNC example 
-  * Sep. 2001: added Ar&middot;&middot;&middot;SO<sub>2</sub> example; new versions of the programs are available; 
-  * July 2001: new versions of the programs are available 
-  * Mar. 2001: added ClNO<sub>2</sub> example 
-  * Feb. 2001: some modifications to the documentation for SPFIT/SPCAT including recent alterations made by HMP to the JPL version; includes corrections in the explanation of the coding of the quantum numbers 
-  * Jan. 2001: added FClO<sub>3</sub> example 
-  * June - Aug. 2000: added some examples 
-  * June 2000: some basic information concerning the examples is given on the <strong>examples</strong> page 
- 
-===== Cologne Spectroscopy Data ===== 
- 
-  * Dec. 2016: added //n//-C<sub>3</sub>H<sub>7</sub>CN files. 
-  * Oct. 2016: added CH<sub>3</sub>CN, //v//<sub>8</sub> &le; 2 as well as //v//<sub>8</sub> = 1 for <sup>13</sup>C and <sup>15</sup>N singly substituted species of CH<sub>3</sub>CN. 
-  * Sep. 2016: added new CH<sub>2</sub>D<sup>+</sup> files. 
-  * Aug. 2015: added deuterated ethanol files. 
-  * May 2015: added dimethyl ether files. 
-  * Aug. 2014: added //aG'g//-propanediol; //gG'a//-propanediol; //g'G'g//-propanediol. 
-  * Feb. 2014: added SiO. 
-  * Oct. 2013: added CO<sup>+</sup> and CH<sub>2</sub>D<sup>+</sup>. 
-  * Apr. 2013: added, updated, and corrected files in the HCP section. 
-  * Aug. 2012: added files for <sup>13</sup>C isotopomers of ethanol (//anti// conformers). 
-  * Mar. 2012: added //n//-butyl cyanide files. 
-  * June 2011: added TiO<sub>2</sub> files. 
-  * May 2011: added NHD<sub>2</sub> files with several auxiliary files. 
-  * Mar. 2011: added //iso//-propyl cyanide files. 
-  * June 2010: updated CCH files. 
-  * Feb. 2010: added O<sub>2</sub>, a <sup>1</sup>&Delta;. 
-  * Jan. 2010: added O<sub>2</sub>, X <sup>3</sup>&Sigma;<sup>-</sup>, //v// = 0; O<sup>18</sup>O; <sup>18</sup>O<sub>2</sub>. 
-  * Dec. 2009: added data for ground states of methyl cyanide isotopologs. 
-  * Aug. 2009: added diethyl ether. 
-  * Apr. 2009: added vinyl cyanide. 
-  * Apr. 2008: added SiS. 
-  * Feb. 2008: added H<sub>2</sub>CS. 
-  * July 2005: added HC<sup>15</sup>N and new SO<sub>2</sub> files. 
-  * July 2004: added butenyne, C<sub>4</sub>H<sub>4</sub>; linked KCl; 
-  * May 2004: linked NH; added DCN isotopomers; linked //aGg'// ethylene glycol; added //gGg'// ethylene glycol; 
-  * Apr. 2004: linked CCH 
-  * Mar. 2004: linked HNC 
-  * June 2003: added HCS<sup>+</sup> isotopomers 
-  * Apr. 2003: OH<sup>+</sup>; HC<sub>13</sub>N; t-HC<sub>3</sub>O; ScCl; Sc<sup>37</sup>Cl 
-  * Mar. 2003: NH<sub>2</sub>OH; H<sub>2</sub>CO; NCS; ScF 
-  * Feb. 2003: H<sup>13</sup>CC<sup>13</sup>CN; C<sub>3</sub>, v<sub>2</sub>; NaF, //v// = 0, 1; KF, //v// = 0, 1; HCN, //v// = 0; HCN, //v//<sub>2</sub> = 1 
-  * Jan. 2003: C<sup>17</sup>O; <sup>13</sup>C<sup>17</sup>O; CH<sub>3</sub>CCH, //v// = 0; CH<sub>3</sub>CCH, //v//<sub>10</sub> = 1; butenyne (C<sub>4</sub>H<sub>4</sub>); HCC<sup>13</sup>C<sup>15</sup>N; HC<sup>13</sup>C<sup>13</sup>CN 
-  * Sep. 2002: updated HCN, //v// = 0; 
-  * Nov. 2001: new and updated entries are available, among them NH<sub>2</sub> and PH<sub>2</sub>. 
-  * July 2000: updated available entries 
  
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