K6Tl2Sb3, a zintl phase with a novel heteroatomic ∞1[Tl4Sb612-] chain

被引：10

作者：

Chi, LS

Corbett, JD ^{[1
]}

机构：

[1] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA

[2] Iowa State Univ, Dept Chem, Ames, IA 50011 USA

来源：

INORGANIC CHEMISTRY | 2001年 / 40卷 / 12期

关键词：

D O I：

10.1021/ic0014134

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The title compound with heteratomic anionic chains (1)(infinity)[Tl4Sb612-] has been discovered in the K-Tl-Sb system. The phase is obtained from a range of compositions near K3TlSb1.5 following reaction first at 750-850 degreesC and then at 550 degreesC for one week or more. It crystallizes in the monoclinic system in space group C2/c, Z = 8, a = 9.951(1) Angstrom, b = 17.137(3) Angstrom, c = 19.640(6) Angstrom, and beta = 104.26(3)degrees Swing-like (Tl4Sb6)(12-) units consisting of alternating Sb and Tl atoms in four- and eight-membered rings are linked through Tl-Tl bonds to form infinite one-dimensional chains along (a) over bar. EHTB calculations and resistivity measurements show that the compound is a semiconductor.

引用

页码：2705 / 2708

页数：4

共 27 条

[1] SYNTHESIS AND CRYSTAL-STRUCTURE OF A NOVEL LAYERED ZINTL PHASE - K3GA3AS4 [J].