CRYSTAL-STRUCTURE AND MAGNETIC-PROPERTIES OF LINEAR-CHAIN POTASSIUM AQUOTETRAFLUOROMANGANATE(III)

被引：16

作者：

PALACIO, F ^{[1
]}

ANDRES, M ^{[1
]}

ESTEBANCALDERON, C ^{[1
]}

MARTINEZRIPOLL, M ^{[1
]}

GARCIABLANCO, S ^{[1
]}

机构：

[1] CSIC,INST ROCASOLANO,DEPT RAYOS X,E-28006 MADRID,SPAIN

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1988年 / 76卷 / 01期

关键词：

Crystals--Structure - Rubidium Compounds;

D O I：

10.1016/0022-4596(88)90190-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The crystal structure and single-crystal ac magnetic susceptibilities of KMnF4&middotH2O are reported. The structure, which is isomorphous to that of RbMnF4&middotH2O, consists of chains of alternating trans-[MnF4F2/2 ]2- and trans-[MnF2F2/2(H2O)2] tetragonally elongated octahedra connected to each other by shared apical fluorine atoms. Magnetic susceptibility measurements show a broad maximum around 52 K indicative of lower dimensionality behavior. The data may be fit to a Heisenberg S=2 linear chain model with J/kb=-6.5 K and g=2.05. At 8.45 K sharp peak in the susceptibility data parallel to the chains indicates weak ferromagnetic behavior.

引用

页码：33 / 39

页数：7

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