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This is an old revision of the document!

The database is described in

H. S. P. Müller, F. Schlöder, J. Stutzki, and G. Winnewisser, J. Mol. Struct. 742, 215–227 (2005)

and in

H. S. P. Müller, S. Thorwirth, D. A. Roth, and G. Winnewisser, Astronomy and Astrophysics 370, L49–L52 (2001).

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.

Earlier Catalog Entries

May 2023: MgC₆H⁺; MgC₅N⁺.
Apr. 2023: c-CD₂CH₂O; MgC₄H⁺; MgC₃N⁺.
Mar. 2023: C₆H₅C₃N; 1-CN-4-CCH-C₆H₄; 1-CN-2-CCH-C₆H₄; 1-CN-3-CCH-C₆H₄.
Feb. 2023: OH, v = 0; OH, v = 1; OH, v = 2; C₇N⁻; C₁₂H; C₁₀H⁻.
Feb. 2023: Adjusted Q values and g_up of excited state HC₅N entries and the IR band to be compatible with version 2 of v = 0.
Jan. 2023: MgC¹³C; urea, v = 0; urea, v₁; urea, v₂ & v₃; urea, v₄ & v₅.
Dec. 2022: DCS; H¹³CS; ethynylbutatrienylidene, NC₄NH⁺; MgC₂; ²⁶MgC₂; ²⁵MgC₂.
Nov. 2022: HC₄S; DSC; HS¹³C.
Oct. 2022: t-C₂H₃NCO; cis-C₂H₃NCO; g'Gg'-alaninol; gG'g-alaninol; 2-hydroxypropenal.
Sep. 2022: ¹³CH₃OCH₃; 2-Iminopropanenitrile; c-C₂H₃DO.
Aug. 2022: E-1-propanimine; Z-1-propanimine; Z-propynimine; E-propynimine; HC(O)OCH₂D; HC(O)OCHD₂; DC(O)OCH₃; ¹³CH₃C(O)CH₃; corrected intensities of SiS, v ≤ 19 and Si³³S, v ≤ 9.
Jul. 2022: Ethenylidenecyclopentadiene; ethynylcyclopropynylidyne; allenyldiacetylene; heptatetraen-6-yne; allenylcyanoacetylene.

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.

Archive "Catalog Search Form"

Nov. 2021: A new group was defined: Other hydrocarbons, that are hydrocarbons different from the carbon chain species C_nH and C_nH₂, but including isotopologs.

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.

Archive "Molecules in Space"

May 2023: added HMgC₃N, NaCCCN, MgC₄H⁺, MgC₃N⁺, MgC₆H⁺, and MgC₅N⁺.
Mar. 2023: added methylketene with documentation; updated acetaldehyde and methylamine.
Feb. 2023: added C₇N⁻ and C₁₀H⁻ with documentations; updated NH₂.
Dec. 2022: added SiP, MgC₂, and NC₄NH⁺ with documentations.
Nov. 2022: added HC₄S and ethynylbutatrienylidene with documentation, updated the oxirane entry.
Oct. 2022: added 2-cyanoindene with documentation.
Aug. 2022: added ethenylidenecyclopentadiene with documentation; updated ethenol documentation.
Jul. 2022: added c-C₃C₂H, CH₂CCHC₄H, and cyanopropene species with documentations; updated H₂CCCHC₃N documentation.