THE PREPARATION AND PROPERTIES OF M'M5X8(X8 (X=SE,TE M=CR,TI M'=LI,NA,K,RB,CS,CD,SN,PB) VIA LOW-TEMPERATURE ION-EXCHANGE REACTION

被引：14

作者：

NOVET, T ^{[1
]}

WAGNER, M ^{[1
]}

JIANG, M ^{[1
]}

JOHNSON, DC ^{[1
]}

机构：

[1] UNIV OREGON,INST MAT SCI,EUGENE,OR 97403

来源：

MATERIALS RESEARCH BULLETIN | 1995年 / 30卷 / 01期

关键词：

TERNARY TITANIUM SELENIDES; TERNARY CHROMIUM SELENIDES;

D O I：

10.1016/0025-5408(94)00117-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Low temperature ion exchange reactions were used to prepare an isostructural series of compounds, M'M5X8 (X = Se, Te; M = Cr, Ti; M' = Li, Na, K, Rb, Cs, Cd, Sn, Pb) in which the exchanged cations reside in one-dimensional tunnels within the structure. Calorimetry and diffraction measurements were used to follow the exchange process and chemical analysis of the products showed a dependence on the extent of exchange with cation size. Exchange of divalent cations into the Cr5X8 framework led to a doubling of the unit cell in the tunnel direction due to an ordering of the cations while divalent cations in the Ti5Se8 framework remained randomly ordered. Magnetic susceptibility studies on several of the products indicated only small perturbations on the magnetic properties of the parent compounds as a result of cation exchange.

引用

页码：65 / 73

页数：9

共 16 条

[1] MAGNETIC-PROPERTIES IN THE SERIES TLXV6-YMYS8 (M = CR, MN, FE, 0 LESS-THAN-OR-EQUAL-TO Y LESS-THAN-OR-EQUAL-TO 1) [J].