Siegel der Universität

Universität zu Köln
Mathematisch-Naturwissenschaftliche Fakultät
Fachgruppe Physik

I. Physikalisches Institut

What's new?

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What is not quite so new anymore ? (Less recent changes to the CDMS)

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.

Recent Catalog Entries

  • Dec. 2017: HC15N, v = 0; HC15N, v2 = 1.
  • Nov. 2017: HNC3.
  • Oct. 2017: SiH+, v = 0; SiH+, v = 1 – 0; urea; SH+; 34SH+.
  • Sep. 2017: H2CSiH2; H2CSi; c-H2C2Si; H2C2Si; 2-Cyano-anti-butane.
  • Aug. 2017: 15N2H+; 15N2D+; HC4O; HC5O; HC6O; HC7O; H2NCH2CN, v11 + v18 = 1; H2NCH2CN, v17 = 1; a new compilation is available for CH3OH, vt = 0 – 2.
  • July 2017: DOCO+; HOCO+; HO13CO+; separate para and ortho predictions with 14N hyperfine splitting are available for NH2D.
  • 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 H2CO.
  • Apr. 2017: i-C3H7CN, v30 = 1; H2NCH213CN; H2N13CH2CN; G'Gg'gg'-glycerol; GGag'g'-glycerol; benzaldehyde; anisole; 13CH313CH213CN.
  • Mar. 2017: 1-butyne; H2D+; HOCH2CN; corrected intensities of CH3O13CHO which were too low by a factor of 2.
  • Feb. 2017: H2C17O; H2C18O; H2CO; H2O+; i-C3H713CN; (CH3)213CHCN; 13CH3(CH3)CHCN.
  • Jan. 2017: NO+, v = 0, 1; C2H3D; CH3OCN; vinyl formate; propene.

General Section

  • Nov. 2009: added note in the link which explains the aggregate spin number.

Catalog Search Form

  • 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

  • Nov. 2017: added extragalactic SH+ with documentation; updated extragalactic CH+ documentation.
  • Oct. 2017: added CH3Cl; SiH3CN; and CH3SiH3 with documentations; updated c-C3H; CH3CN; formamide; CH3CHO; C6H2; C7H; and CH3C4H documentations.
  • Aug. 2017: updated propyl cyanides and extragalactic C2S and H2CNH documentations.
  • July 2017: added HC5O with documentation; added tentative detection of N-methylformamide with documentation; updated SiS and CH3NCO documentations.
  • May 2017: updated H3+ documentation.
  • Mar. 2017: updated titanium oxides documentation.
  • Jan. 2017: added formaldehyde documentation and updated ethylene oxide, acetone, and propanal entries.

Fitting Spectra

  • June 2017: added NO files with FTIR data.
  • Apr. 2016: added ethanethiol files.
  • Jan. 2016: updated OH+.
  • Apr. 2015: added NO files.

Cologne Spectroscopy Data

  • Sep. 2017: Added 2-Cyano-anti-butane files.
  • Mar. 2017: The new H2D+ and HD2+ files are available.
  • Feb. 2017: added H2C17O; updated H2C18O and H2CO.
  • Dec. 2016: added n-C3H7CN files.
  • Oct. 2016: added CH3CN, v8 ≤ 2 as well as v8 = 1 for 13C and 15N singly substituted species of CH3CN.
  • Sep. 2016: added new CH2D+ files.