In database:
600-6500 cm-1
0.1-200 nm
Ethylene (C2H4)
Molecular weight 28.05 amu
Freezing point -169 C
Boiling point 104 C
HITRAN number: 38

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 2008
Data from 701 to 3243 cm-1
Images of HITRAN data on a log scale

Line list from HITRAN
Data from 700 to 3242 cm-1
Images of HITRAN data

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

Please see The MPI-Mainz UV/VIS Spectral Atlas

Additional references
Analysis of the n12 Band of Ethylene-13C2 by High-Resolution FTIR Spectroscopy; T.L. Tan, K.L. Goh, P.P. Ong, and H.H.Teo; J.Mol.Spec. 207:189-192 (2001).
Absolute Intensities in the n7 Band of Ethylene: Tunable Measurements Used to Calibrate FTS Broadband Spectra; W.E. Blass et al.; JQSRT 68:467-472 (2001)
High-Resolution Fourier Transform Infrared Spectrum of the n12 Fundamental Band of Ethylene (C2H4); T.L. Tan et al.; J.Mol.Spec. 203:310-313 (2000).
The Ethylene Hot Band Spectrum Near 3000 cm-1; J. Oomens et al.; J.Mol.Spec. 180:236-248 (1996).

Notes c2h4
Fundamental frequencies from NIST Chemistry Webbook
n1 3026 cm-1 (ag) CH2 stretch
n2 1623 cm-1 (ag) CC stretch
n3 1342 cm-1 (ag) CH2 scissor
n4 1023 cm-1 (au) CH2 twist
n5 3103 cm-1 (b1g) CH2 stretch
n6 1236 cm-1 (b1g) CH2 rock
n7 949 cm-1 (b1u) CH2 wag
n8 943 cm-1 (b2g) CH2 wag
n9 3106 cm-1 (b2u) CH2 stretch
n10 826 cm-1 (b2u) CH2 rock
n11 2989 cm-1 (b3u) CH2 stretch
n12 1444 cm-1 (b3u) CH2 scissor

List of available data for all molecules in database
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