new [CDMS classic documentation]

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====== What's new? ======

The database is described in
<alert type="info">
H. S. P. Müller, F. Schlöder, J. Stutzki, and G. Winnewisser, J. Mol. Struct. 742, 215–227 (2005)
</alert>
and in
<alert type="Info">
H. S. P. Müller, S. Thorwirth, D. A. Roth, and G. Winnewisser, Astronomy and Astrophysics 370, L49–L52 (2001).
</alert>
Please acknowledge use of the CDMS by citing these article. You are very welcome to state the web
address also. We recommend to cite the original sources of the data too, which are given in the
documentations, at least as far as this is feasible.
===== Recent Catalog Entries =====

  * Feb. 2020: O<sup>18</sup>O; <sup>18</sup>O<sub>2</sub>; O<sub>2</sub>, a <sup>1</sup>Δ.
  * Jan. 2020: <sup>26</sup>AlO, v = 0; <sup>26</sup>AlO, v = 1 − 2; O<sub>2</sub>, X <sup>3</sup>Σ, //v// = 0.
  * Dec. 2019: Aminomethylium; AlO, //v// = 0; AlO, //v// = 1 − 2; AlO, //v// = 3 − 5; Al<sup>18</sup>O, v = 0; Al<sup>18</sup>O, v = 1 − 2; Al<sup>17</sup>O, v = 0; Al<sup>17</sup>O, v = 1 − 2.
  * Nov. 2019: Si<sup>33</sup>S, //v// = 0 − 9.
  * Oct. 2019: PO, //v// = 0; PO, //v// = 1, 2; PO, //v// = 3 − 5; MgC<sub>3</sub>N; MgC<sub>4</sub>H; CH<sub>3</sub>CHOHCHO; SiS, //v// = 0 − 20; <sup>29</sup>SiS, //v// = 0 − 12; <sup>30</sup>SiS, //v// = 0 − 12; Si<sup>34</sup>S, //v// = 0 − 12.
  * Sep. 2019: //syn//-vinyl alcohol; //anti//-vinyl alcohol; propargylamine; PN, //v// = 0 − 5.
  * July 2019: AlCl, //v// = 0 − 10; Al<sup>37</sup>Cl, //v// = 0 − 10; <sup>26</sup>AlCl, //v// = 0 − 2; <sup>26</sup>Al<sup>37</sup>Cl, //v// = 0 − 2; Al<sup>36</sup>Cl, //v// = 0 − 2.
  * June 2019: HCCO; DCCO; NaCl, //v// = 0 − 15; Na<sup>37</sup>Cl, //v// = 0 − 15; Na<sup>36</sup>Cl, //v// = 0 − 5.
  * May 2019: K<sup>37</sup>Cl, //v// = 0 − 15; <sup>41</sup>KCl, //v// = 0 − 15; <sup>41</sup>K<sup>37</sup>Cl, //v// = 0 − 15; <sup>40</sup>KCl, //v// = 0 − 5; <sup>40</sup>K<sup>37</sup>Cl, //v// = 0 − 5; K<sup>36</sup>Cl, //v// = 0 − 5; <sup>41</sup>K<sup>36</sup>Cl, //v// = 0 − 5; HCCSH; CH<sub>3</sub>COOH, //v<sub>t</sub>// = 0; CH<sub>3</sub>COOH, //v<sub>t</sub>// = 1; CH<sub>3</sub>COOH, //v<sub>t</sub>// = 2; CH<sub>3</sub>COOH, Δ//v<sub>t</sub>// ≠ 0; corrected partition function values and rotational parameters in the propene documentation.
  * Apr. 2019: //syn//-C<sub>2</sub>H<sub>3</sub>SH; //anti//-C<sub>2</sub>H<sub>3</sub>SH; CH<sub>3</sub>CDO, //v<sub>t</sub>// = 0, 1; CH<sub>2</sub>DCHO, //v<sub>t</sub>// = 0; TiF; KCl, //v// = 0 − 15.
  * Mar. 2019: H<sub>2</sub>N<sup>13</sup>CN; H<sub>2</sub><sup>15</sup>NCN; H<sub>2</sub>NC<sup>15</sup>N; FeN; CrO; CrN; CrF; CrCl; Cr<sup>37</sup>Cl; CrH.
  * Mar. 2019: Updated CDMS links in several arXiv versions of manuscripts and made some available newly. The same applies to the Cologne Stectroscopy Data section.
  * Feb. 2019: FeO Ω = 4; FeO Ω = 3; FeO Ω = 2; <sup>54</sup>FeO Ω = 4; <sup>54</sup>FeO Ω = 3; <sup>54</sup>FeO Ω = 2.
  * Jan. 2019: AlF, //v// = 0 − 5; <sup>26</sup>AlF, //v// = 0 − 2; //p-c//-SiC<sub>3</sub>; HSCO<sup>+</sup>; DSCO<sup>+</sup>.

===== General Section and General Remarks =====

  * Mar. 2019: The program of the VAMDC-CDMS was updated. The Classic or ascii-CDMS was moved to this server. Links have been corrected and should work, but a detailed check is pending. The coding of special characters has been adjusted.
  * Nov. 2009: added note in the link which explains the aggregate spin number.

===== Catalog Search Form =====

  * Dec. 2018: A new group was defined: ISM, molecules detected in the interstellar medium, but not in circumstellar shells of late-type stars.
  * Nov. 2018: A bug in the calculation of A values was fixed. This affected transitions with //g//<sub>up</sub> larger than 999.
  * Dec. 2015: new molecule group: cyclic species.

===== Partition Functions =====

  * Apr. 2010: started to add values at 2.725 and 5 K for some species. The log values are also displayed in the partition function table.

===== Molecules in Space =====

  * Feb. 2020: added extragalactic O<sub>2</sub> and updated galactic C<sub>3</sub> documentation.
  * Oct. 2019: added MgC<sub>3</sub>N, MgC<sub>2</sub>H, and MgC<sub>4</sub>H with documentations; corrected and updated links. 
  * Sep. 2019: updated HNCO entry.
  * July 2019: added CaNC and urea with documentations; updated cyclopropenylidene, formamide, N-methylformamide,  methoxymethanol, and ethyl methyl ether documentations.
  * June 2019: updated methylamine and acetic acid documentations.
  * Apr. 2019: added HeH<sup>+</sup> with documentation; updated ethanal and acetamide documentations.
  * Mar. 2019: added HONO with documentation, updated methyl formate entry.
  * Jan. 2019: updated entries for H<sub>2</sub>CCO, HCOOH, CH<sub>3</sub>CHO, C<sub>2</sub>H<sub>5</sub>OH, cyanomethanimine, HNCCN<sup>+</sup>, CH<sub>3</sub>CN and H<sub>2</sub>NCHO.

===== Fitting Spectra =====

  * June 2017: added NO files with FTIR data.
  * Apr. 2016: added ethanethiol files.
  * Jan. 2016: updated OH<sup>+</sup>.

===== Cologne Spectroscopy Data =====

  * Dec. 2019: Added aminomethylium files.
  * Nov. 2019: Added <sup>13</sup>CH<sub>3</sub>SH files.
  * Aug. 2019: Added CH<sub>3</sub>SH files.
  * June 2019: Added CH<sub>3</sub><sup>34</sup>SH files.
  * May 2019: Added acetic acid files.
  * Mar. 2019: Added cyanamide and vinyl mercaptan files as well as those of the //gauche//-conformers of 2-cyanobutane. Updated CDMS links in several arXiv versions of manuscripts and made some available newly. The same applies to the Catalog Archive.
  * Jan. 2019: Added CH<sub>3</sub>SD and H<sub>2</sub>CS files.