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Absolute intensity ratios of Raman lines of benzene and ethylene derivatives with 5145 Å and 3371 Å excitation
Author(s) -
Udagawa Y.,
Mikami N.,
Kaya K.,
Ito M.
Publication year - 1973
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250010404
Subject(s) - raman spectroscopy , benzene , intensity (physics) , excitation , ethylene , chemistry , analytical chemistry (journal) , optics , physics , organic chemistry , quantum mechanics , catalysis
Abstract Absolute Raman intensities of benzene and ethylene derivatives were measured in the vapour phase with 5145 Å and 3371 Å excitation. Intensity increase of benzene 992 cm −1 band, which has been frequently used as an intensity standard, was found to be much smaller than expected. The observed intensity increases of ethylene derivatives nicely agree with the theory by assuming the contributing virtual states are the lowest allowed 1 π, π* state.