Cartesian Dynamics of Simple Molecules VI Centrosymmetric Linear Pentatomics
作者:
J.H. Lefebvre,
A. Anderson,
期刊:
Spectroscopy Letters
(Taylor Available online 1991)
卷期:
Volume 24,
issue 7-8
页码: 995-1011
ISSN:0038-7010
年代: 1991
DOI:10.1080/00387019108020678
出版商: Taylor & Francis Group
关键词: Molecular vibrations;infrared spectroscopy;Raman spectroscopy;lattice dynamics
数据来源: Taylor
摘要:
A simple spring model for molecular vibrations, which uses Cartesian co-ordinates for both longitudinal and transverse displacements, is applied to centresymmetric linear pentatomic molecules such as carbon suboxide and carbon subsulphide. Analytical expressions for the four stretching and three bending mode frequencies are derived in terms of seven independent force constants. By substitution of Raman and infrared frequencies, values of these force constants are obtained and briefly discussed. Eigenvectors of the normal modes and eigenfrequencies of various isotopic species are also calculated.
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