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Intensity distribution in pure rotational Raman spectra of linear molecules in the ground and vibrational II states application to acetylene
Author(s) -
Finsterhölzl H.,
Hochenbleicher J. G.,
Strey G.
Publication year - 1977
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.1250060105
Subject(s) - acetylene , raman spectroscopy , excited state , chemistry , atomic physics , spectral line , molecule , intensity (physics) , argon , excitation , molecular physics , analytical chemistry (journal) , physics , optics , organic chemistry , quantum mechanics , chromatography , astronomy
The pure rotational Raman spectrum of acetylene has been recorded with argon laser excitation and a resolution of about 0.3 cm −1 . For the first time ΔJ = 1 transitions in the excited II states are clearly resolved up to J = 9. Formulae for the intensity distribution in rotational Raman spectra of linear molecules in the ground and vibrational II states have been derived including the effect of I ‐type doubling. After a qualitative discussion these formulae are applied to a quantitative analysis of the acetylene spectrum.