A STUDY OF THE HIGH-PRESSURE PHASE-TRANSITION IN LITHIUM HYDROXIDE BY INFRARED AND RAMAN-SPECTROSCOPY

被引：13

作者：

ADAMS, DM

HAINES, J

机构：

[1] Department of Chemistry, University of Leicester

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 18期

关键词：

D O I：

10.1021/j100171a063

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：

The infrared and Raman spectra of lithium hydroxide have been obtained up to pressures of 126 and 82 kbar, respectively. A phase transition, involving the formation of weak hydrogen bonds, was found to begin at close to 7 kbar upon compression. The spectra indicate that the high-pressure phase belongs to a centrosymmetric space group. A model is proposed in which hydrogen-bonded chains are formed within the layers containing the hydroxide ions, leading to the formation of an orthorhombic structure with cell doubling.

引用

页码：7064 / 7067

页数：4

共 9 条

[1] OPTICAL FLUORESCENCE SYSTEM FOR QUANTITATIVE PRESSURE MEASUREMENT IN DIAMOND-ANVIL CELL [J].