CDMS classic documentation

new - [Recent Catalog Entries]

mueller@undisclosed.example.com (mueller) — Fri, 17 Apr 2026 12:19:14 +0000

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	[[archive#less_recent_catalog_entries\|Earlier Catalog Entries]]		[[archive#less_recent_catalog_entries\|Earlier Catalog Entries]]

-	* Apr. 2026: 2,5-//c//-C<sub>6</sub>H<sub>6</sub>S, 2,4-//c//-C<sub>6</sub>H<sub>6</sub>S; C<sub>3</sub>H<sub>3</sub>CHO; 2-azabutadiene.	+	* Apr. 2026: 2,5-//c//-C<sub>6</sub>H<sub>6</sub>S, 2,4-//c//-C<sub>6</sub>H<sub>6</sub>S; C<sub>3</sub>H<sub>3</sub>CHO; 2-azabutadiene; 1-azetine; cyclopropanone.
	* Mar. 2026: 1H-cyclopent[cd]indene; <sup>13</sup>CH<sub>2</sub>DCN; CH<sub>2</sub>D<sup>13</sup>CN; CH<sub>2</sub>DC<sup>15</sup>N; <sup>13</sup>CH<sub>3</sub>CN, //v// = 0; CH<sub>3</sub><sup>13</sup>CN, //v// = 0; <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; <sup>13</sup>CH<sub>3</sub>CN, //v//<sub>8</sub> = 2; CH<sub>3</sub><sup>13</sup>CN, //v//<sub>8</sub> = 2.		* Mar. 2026: 1H-cyclopent[cd]indene; <sup>13</sup>CH<sub>2</sub>DCN; CH<sub>2</sub>D<sup>13</sup>CN; CH<sub>2</sub>DC<sup>15</sup>N; <sup>13</sup>CH<sub>3</sub>CN, //v// = 0; CH<sub>3</sub><sup>13</sup>CN, //v// = 0; <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; <sup>13</sup>CH<sub>3</sub>CN, //v//<sub>8</sub> = 2; CH<sub>3</sub><sup>13</sup>CN, //v//<sub>8</sub> = 2.
	* Feb. 2026: HeH<sup>+</sup>; mercaptoethanol.		* Feb. 2026: HeH<sup>+</sup>; mercaptoethanol.

mueller@undisclosed.example.com (mueller) — Mon, 13 Apr 2026 10:55:20 +0000

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	\\		\\

		+	Some time later,\\
		+	H. S. P. Müller, A. Belloche, F. Lewen, and S. Schlemmer\\
		+	reported on\\
		+	[[https://doi.org/10.1016/j.jms.2021.111449\|Rotational Spectroscopy as a Tool to Study Vibration−Rotation Interaction: Investigations of (13)CH3CN and CH3(13)CN up to v8 = 2 and a Search for v8 = 2 Transitions toward Sagittarius B2(N)]]\\
		+	//ACS Earth Space Chem.// 10, 578 (2026).\\
		+	The same survey as in the previous paragraph aling with the extended model were used to try to identify v8 = 2 transitions of <sup>13</sup>CH<sub>3</sub>CN and of CH<sub>3</sub><sup>13</sup>CN. While according to the model some lines were expected to be above the 3σ limit, all these lines were blended with much stronger lines. Nevertheless, these observations indicate the need for these data.\\
		+	\\

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mueller@undisclosed.example.com (mueller) — Mon, 13 Apr 2026 10:16:27 +0000

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-	=== (Far) Infrared observations of Methanol ===	+	=== (Far) Infrared Observations of Methanol ===

	S. L. Nickerson, N. Rangwala, K. Sung, X. Huang, E. J. Montiel, C. DeWitt, V. J. M. Le Gouellec, S. W. J. Colgan, J. Dittmann, J. P. Fonfría, G. M. Harper, K. E. Kraemer, J. Li, C. A. Nixon, M. F. Rashman, C. Sousa-Silva, A. G. G. M. Tielens, and W. D. Vacca\\		S. L. Nickerson, N. Rangwala, K. Sung, X. Huang, E. J. Montiel, C. DeWitt, V. J. M. Le Gouellec, S. W. J. Colgan, J. Dittmann, J. P. Fonfría, G. M. Harper, K. E. Kraemer, J. Li, C. A. Nixon, M. F. Rashman, C. Sousa-Silva, A. G. G. M. Tielens, and W. D. Vacca\\
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	[[https://doi.org/10.3847/2041-8213/adf632\|The Discovery of 25 μm Interstellar Methanol]]\\		[[https://doi.org/10.3847/2041-8213/adf632\|The Discovery of 25 μm Interstellar Methanol]]\\
	//Astrophys. J. Lett. // 989, Art. No. L51 (2025).\\		//Astrophys. J. Lett. // 989, Art. No. L51 (2025).\\
-		+	More than 70 transitions were detected with EXES on board of SOFIA toward the massive protostar NGC 7538 IRS 1. Most of the transitions belong to the torsional overtone 2//v//<sub>12</sub>, some also to the torsional fundamental //v//<sub>12</sub>. The derived rotational temperature as well as the column density agree with submillimeter observations.\\
-		+	\\

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mueller@undisclosed.example.com (mueller) — Wed, 08 Apr 2026 09:08:09 +0000

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	[[https://doi.org/10.1038/s41550-025-02749-7\|A Detection of Sulfur-Bearing Cyclic Hydrocarbons in Space]]\\		[[https://doi.org/10.1038/s41550-025-02749-7\|A Detection of Sulfur-Bearing Cyclic Hydrocarbons in Space]]\\
	//Nat. Astron.// 10, 401 (2026).\\		//Nat. Astron.// 10, 401 (2026).\\
-	The molecule was detected in the course of a molecular line survey of the Galactic Center molecular cloud G+0.693–0.027 employing the Yebes 40 m telecope. The //a//-type transitions cover 31 to 49 GHz with 10 ≤ //J// ≤ 19 and //K<sub>a</sub>// ≤ 7. Some lines are unblended, slightly blended, or the peak of the line is at most slightly blended. Some further lines are blended more substantially. The glycolaldehyde/glycolamide ratio is ∼15, while the ethanol/ethanolamine ratio is ∼40.\\	+	2,5-Cyclohexadienthione was detected in the course of a molecular line survey of the Galactic Center molecular cloud G+0.693–0.027 employing the Yebes 40 m telecope. The //a//-type transitions cover 31 to 49 GHz with 10 ≤ //J// ≤ 19 and //K<sub>a</sub>// ≤ 7. Some lines are unblended, slightly blended, or the peak of the line is at most slightly blended. //T//<sub>rot</sub> ≈ 12.5 K was derived from a rotation diagram. 2,4-Cyclohexadienthione was not detected, its abundance is at least a factor of 2 lower than 2,5-cyclohexadienthione.\\
	\\		\\

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