LATTICE-DYNAMICS OF FORMALDEHYDE

被引：9

作者：

WENG, SX ^{[1
]}

ANDERSON, A ^{[1
]}

机构：

[1] UNIV WATERLOO,DEPT PHYS,WATERLOO N2L 3G1,ONTARIO,CANADA

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1991年 / 166卷 / 02期

关键词：

D O I：

10.1002/pssb.2221660205

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A simple force constant model is described and applied to the vibrations of solid formaldehyde, H2CO and D2CO. Twenty adjustable parameters are used to obtain the best fit to the lattice mode frequencies and crystal field splittings observed by Raman and infrared spectroscopy. The use of symmetry coordinates to reduce the dimensions of the 96 by 96 original matrix is outlined. The dominant intermolecular interaction is confirmed to be that between carbonyl groups. The dependence of the force constants on interatomic separation is expressed in a simple exponential form.

引用

页码：359 / 368

页数：10

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