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Multiple vibrational resonances in the Raman spectra of liquid ethanes
Author(s) -
KorppiTommola Jouko,
Sundius Tom,
Shurvell H. F.,
Daunt S. J.
Publication year - 1990
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.1250210408
Subject(s) - raman spectroscopy , chemistry , wavenumber , spectral line , liquid state , gaussian , liquid phase , mixing (physics) , excited state , analytical chemistry (journal) , molecular physics , atomic physics , computational chemistry , optics , thermodynamics , physics , organic chemistry , quantum mechanics
The Raman spectra of liquid ethane, ethane‐ d 3 and ethane‐ d 6 were recorded and analysed. The CH 3 and CD 3 stretching regions were computer resolved using Cauchy‐Gaussian and Voigt functions to account for asymmetric band shapes. Multiple vibrational resonances were investigated using the wavenumbers and observed intensities in these regions. The developed basis functions show strong mixing of the levels in these regions. In general the resonances appear to be less strong in the liquid phase than reported in previous studies of the gaseous state. Some new assignments in the liquid‐state spectra of ethanes could be suggested.