HIGH-PRESSURE RAMAN-STUDY OF LIQUID AND CRYSTALLINE CARBONYL SULFIDE

被引：6

作者：

SHIMIZU, H

IKEDA, Y

SASAKI, S

机构：

[1] Department of Electronics and Computer Engineering, Gifu University, 1-1 Yanagido

来源：

CHEMICAL PHYSICS LETTERS | 1990年 / 175卷 / 04期

关键词：

D O I：

10.1016/0009-2614(90)80123-U

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-pressure Raman spectra of liquid and crystalline carbonyl sulfide (COS) have been measured up to 15 GP a at 300 K in a gasketed diamond anvil cell. The liquid-solid transition pressure is determined to be 2.70 GPa at 300 K. An intermolecular Raman mode is found in the solid phase, and its frequency shows the pressure-sensitive increase with a slope (d-nu/dp) of 10.6 cm-1/GPa. The pressure dependence of intramolecular Raman frequencies is investigated, and their characteristics are discussed and compared with the previous results in CO2 and CS2, including the effect of Fermi resonance. A dark modification of COS appears irreversibly at pressures above 17 GPa.

引用

页码：349 / 353

页数：5

共 23 条

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