LATTICE-DYNAMICS OF ACETYLENE

被引：5
|
作者：
BINBREK, OS
ANDERSON, A
机构：
[1] UNIV WATERLOO,DEPT PHYS,WATERLOO N2L 3G1,ONTARIO,CANADA
[2] KING FAHD UNIV PETR & MINERALS,DEPT PHYS,DHAHRAN 31261,SAUDI ARABIA
来源：
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1992年 / 173卷 / 02期
关键词：
D O I：
10.1002/pssb.2221730207
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 crystalline acetylene, C2H2 and C2D2 in its low temperature orthorhombic phase. The model uses ten (six intermolecular and four intramolecular) adjustable parameters to calculate the frequencies of seven lattice modes and fourteen internal mode components, and good agreement with spectroscopic data is obtained. Intermolecular force constants decrease sharply with increasing separation and are well represented by exponential functions. Intramolecular force constants show only minor changes from their gas phase values.
引用
收藏
页码：561 / 568
页数：8
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