THEORY OF PROFILES OF HYDROGEN STRETCHING INFRARED BANDS OF HYDROGEN-BONDED SOLIDS - MODEL OF STRONG-COUPLING BETWEEN THE HIGH-FREQUENCY HYDROGEN STRETCHING VIBRATION AND LOW-FREQUENCY PHONONS

被引：54
作者：
RATAJCZAK, H
YAREMKO, AM
机构：
[1] WROCLAW B BEIRUT UNIV, INST CHEM, DEPT THEORET CHEM & CHEM PHYS, PL-50383 WROCLAW, POLAND
[2] UKRAINIAN ACAD SCI, INST SEMICOND PHYS, KIEV 252028, UKRAINE
来源：
CHEMICAL PHYSICS LETTERS | 1995年 / 243卷 / 3-4期
关键词：
D O I：
10.1016/0009-2614(95)00864-Z
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：
A theory is developed to describe a broad IR absorption which appears in the range of a high-frequency stretching vibration of the X-H group involved in the hydrogen bond in solids. The theory is based on the anharmonic coupling mechanism between the high-frequency hydrogen stretching vibration. nu(XH), and low-frequency lattice phonons. The theory was constructed in the framework of the molecular exciton Davydov approach. Model calculations show that the strong anharmonic couplings between the high-frequency nu(XH) and low lattice vibration frequencies generate the broadness of the nu(XH) band.
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页码：348 / 353
页数：6
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