Infrared spectra of bromoform at high pressures

被引：5

作者：

Stanila, D ^{[1
]}

Smith, W ^{[1
]}

Anderson, A ^{[1
]}

机构：

[1] Univ Waterloo, Dept Phys, Waterloo, ON N2L 3G1, Canada

来源：

SPECTROSCOPY LETTERS | 2001年 / 34卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

infrared spectra; high pressures; bromoform; molecular crystals;

D O I：

10.1081/SL-100002009

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Infrared spectra in the wavenumber ranges 100-1800 and 2700-4800 cm(-1) are reported for bromoform samples in diamond anvil cells at ambient temperature and at pressures up to 10 GPa. The freezing pressure is estimated to be 0.13 +/- 0.02 GPa. The spectra appear to evolve smoothly and no major discontinuities are detected. The dependence on pressure of eleven peak wavenumbers (five fundamentals and six combinations) is presented. All modes show small percentage increases in wavenumber over this pressure range, except for the degenerate bend, v(6), which exhibits a 20% increase, suggesting that the equilibrium Br-C-Br angles may be slightly changing with increasing pressure.

引用

页码：199 / 210

页数：12

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