In database:
600-6500 cm-1
13.8-200 nm
Ethane (CH3CH3)
Molecular weight 30.07 amu
Freezing point -183.2 C
Boiling point -88.6 C
HITRAN number: 27

Infrared cross-sections from PNNL
FTIR infrared cross-sections from 600 to 6500 cm-1
Data available at 5 C, 25 C, and 50 C
Spectra is composite of on the order of 10 different pressures,backfilled with nitrogen to 760 T.
Images of PNNL data in cm2/molecule vs. wavenumbers
Images of PNNL data in cm2/molecule vs. microns

Line list from HITRAN
Data from 720 to 3000 cm-1.
Images of HITRAN data in cm/molecule vs. wavenumbers

UV cross-sections
From Dave Crisp
Image of UV data, .09-.2 microns

Please see The MPI-Mainz UV/VIS Spectral Atlas

Additional references

Temperature-Dependent Photoabsorption Cross Sections in the VUV-UV Region. I. Methane and Ethane; F.Z. Chen and C.Y.R. Wu; JQSRT (as of Oct. in press, corrected).
Figures showing data from 120 to 145 nm.

Torsional Line Splittings in the (n4+n8)-n4 Hot Transitions of C2H6 between 1400 and 1510 cm-1; F. Lattanzi et al.; J.Mol.Spec. 216:308-314 (2002).

A Combined Frequency Analysis of the n3,n9, 3 n4 and the Far-Infrared Bands of Ethane: A Reassessment of the Torsional Parameters for the Ground Vibrational State; N. Moazzen-Ahmadi; J.Mol.Spec 214:144-151 (2002).
Figure 1 showing data from 993 to 995 cm-1.

The High-Resolution Far-Infrared Torsional Spectrum of Ethane; N. Moazzen-Ahmadi, E. Kelly, J. Schroderus and V.M. Hornemean; J.Mol.Spec, 209:228-232 (2001).

Notes c2h6
Fundamental frequencies from NIST Chemistry Webbook
n1 2954 cm-1 (a1g) CH3 stretch
n2 1388 cm-1 (a1g) CH3 deform
n3 995 cm-1 (a1g) CC stretch
n4 289 cm-1 (a1g) Torsion
n5 2896 cm-1 (a2g) CH3 stretch
n6 1379 cm-1 (a2g) CH3 deform
n7 2969 cm-1 (eg) CH3 stretch
n8 1468 cm-1 (eg) CH3 deform
n9 823 cm-1 (eg) CH3 rock
n10 2985 cm-1 (eu) CH3 stretch
n11 1469 cm-1 (eu) CH3 deform
n12 1195 cm-1 (eu) CH3 rock

List of available data for all molecules in database
Return to front page