Cartesian Dynamics of Simple Molecules. IX. Pyramidal Quadratomics (C3vSymmetry)
作者:
S.X. Weng,
A. Anderson,
W.Y. Zeng,
期刊:
Spectroscopy Letters
(Taylor Available online 1992)
卷期:
Volume 25,
issue 5
页码: 707-719
ISSN:0038-7010
年代: 1992
DOI:10.1080/00387019208020703
出版商: Taylor & Francis Group
关键词: Molecular vibrations;infrared spectroscopy;Raman spectroscopy;lattice dynamics
数据来源: Taylor
摘要:
The vibrations of pyramidal AB3type molecules with C3vsymmetry are analyzed in terms of Cartesian co-ordinates, and analytical expressions for the four normal mode frequencies are derived as functions of two stretching and two bending force constants. Optimized values of these force constants are obtained for a number of tri-hydride and tri-halide molecules by substitution of available spectroscopic and geometric data. The physical validity of the model is confirmed by comparing the calculated and observed frequencies of several isotopic species.
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