Multistate vibronic coupling effects in the K-shell excitation spectrum of ethylene: Symmetry

Koppel, H.; Gadea, F.X.
March 1997
Journal of Chemical Physics;3/15/1997, Vol. 106 Issue 11, p4415
Academic Journal
Investigates the vibrational fine structure of the absorption band of ethylene and some of its isotopomers using a virbronic coupling model. Ab initio determinations of the required vibronic coupling constants ate various nuclear conformations; Strong excitation of nontotally symmetric modes involving the planar C-H stretching mode.


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