INFRARED STUDIES ON STRUCTURAL PHASE-TRANSITIONS IN [NH2(CH3)(2)]3SB2BR9 AND [NH2(CH3)2]3SB2I9

被引：13

作者：

BATOR, G

BARAN, J

JAKUBAS, R

RATAJCZAK, H

机构：

[1] POLISH ACAD SCI,INST LOW TEMP & STRUCT RES,PL-50950 WROCLAW,POLAND

[2] UNIV WROCLAW,INST CHEM,PL-50383 WROCLAW,POLAND

来源：

VIBRATIONAL SPECTROSCOPY | 1994年 / 6卷 / 02期

关键词：

INFRARED SPECTROMETRY; ALKYLAMMONIUM CATIONS; PHASE TRANSITIONS;

D O I：

10.1016/0924-2031(94)85006-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Infrared spectra of [NH2(CH3)(2)]3Sb2Br9 and [NH2(CH3)(2)]3Sb2I9 have been investigated in detail during their phase transitions. The studies show that the vibrational state of dimethylammonium cations change markedly through the transitions. The results obtained for [NH2(CH3)(2)]3Sb2Br9 in the ferroelectric phase are explained in terms of the pseudo-spin-phonon coupling.

引用

页码：193 / 204

页数：12

共 18 条

[1] RAMAN STUDIES OF THE FERROELECTRIC PHASE-TRANSITIONS IN (CH3NH3)5BI2CL11 (MAPCB) .1. THE INTERNAL VIBRATIONS OF THE METHYLAMMONIUM CATION [J].