INFRARED STUDIES OF STRUCTURAL PHASE-TRANSITIONS IN (CH3NH3)3BI2I9 (MAIB)

被引：17

作者：

BATOR, G

JAKUBAS, R

BARAN, J

RATAJCZAK, H

机构：

[1] WROCLAW UNIV,INST CHEM,F JOLIOT CURIE 14,PL-50383 WROCLAW,POLAND

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

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1994年 / 325卷

关键词：

D O I：

10.1016/0022-2860(94)80016-2

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：

Infrared spectra of polycrystalline (CH3NH3)3Bi2I9 (MAIB) have been studied in the temperature range 13-300 K. A systematic temperature dependence study of the internal modes of the methylammonium (MA) cations has been performed. The effect of the dynamic state of the MA cations on the vibrational spectra has been discussed. Substantial changes in the infrared spectra appeared at the structural phase transition at 145 K due to the ordering of the MA cations.

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页码：45 / 51

页数：7

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