Structure and phase transitions in tetramethylammonium pentachloroindate(III) crystals

被引：8

作者：

Gosniowska, M ^{[1
]}

Ciunik, Z ^{[1
]}

Bator, G ^{[1
]}

Jakubas, R ^{[1
]}

机构：

[1] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1999年 / 511卷

关键词：

phase transitions; tetramethylammonium pentachloroindate(III); differential scanning calorimetry; dilatometric measurements;

D O I：

10.1016/S0022-2860(99)00177-5

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：

Differential scanning calorimetry, dielectric, thermal expansion and X-ray diffraction studies on [N(CH3)(4)](8)[In(HOEt)Cl-5](3)[In(H2O)Cl-5] are reported. The crystal reveals a complex sequence of phase transitions of first-order type. The values of the transitions entropies suggest the "order-disorder" character of the phase transitions. The reorientational motions of the tetramethylammonium cations are expected to contribute to the mechanism of phase transitions in the tetramethylammonium salts studied. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：345 / 354

页数：10

共 27 条

[1] SINGLE-CRYSTAL RAMAN STUDY OF SOME AQUO-PENTACHLORO-SALTS [MCI5-(H2O)]2- (M = IN OR FE) [J].