LI3-XTI2(PO4)3 (0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-1) - A NEW MIXED VALENT TITANIUM(III/IV) PHOSPHATE WITH A NASICON-TYPE STRUCTURE

被引：30

作者：

WANG, SM ^{[1
]}

HWU, SJ ^{[1
]}

机构：

[1] RICE UNIV,DEPT CHEM,POB 1892,HOUSTON,TX 77251

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1991年 / 90卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0022-4596(91)90156-C

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new NASICON-related structure of lithium titanium phosphate Li2.72Ti2(PO4)3 has been determined. This compound crystallizes in an orthorhombic system, Pbcn, with a = 12.064 (3) Å, b = 8.663 (3) Å, c = 8.711 (4) Å, V = 910.4 (8) Å3, and Z = 4. The single crystal structure of this novel mixed valent titanium(III/IV) phosphate reveals one titanium atom per asymmetric unit. Two lithium sites are characterized by a pair of distorted polyhedra, Li(1)O4 and Li(2)O5, which share a common edge resulting in a short Li(1) ... Li(2) distance, i.e., 2.29 (5) Å. Magnetic susceptibility and microprobe analysis confirmed the structural composition. The room temperature ionic conductivity is comparable with that of the known Li1+xTiIV2-xInIIIx(PO4)3, which suggests possible fast ionic conductivity. © 1991.

引用

页码：377 / 381

页数：5

共 12 条

[1] IONIC-CONDUCTIVITY IN NA+, K+, AND AG+ BETA-''-ALUMINA [J].