Strong Second Harmonic Generation from the Tantalum Thioarsenates A3Ta2AsS11 (A = K and Rb)

被引：243

作者：

Bera, Tarun K. ^{[1
]}

Jang, Joon I. ^{[2
]}

Ketterson, John B. ^{[2
]}

Kanatzidis, Mercouri G. ^{[1
,3
]}

机构：

[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

[2] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

[3] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 01期

基金：

美国国家科学基金会;

关键词：

OPTICAL-PROPERTIES; CRYSTAL-STRUCTURES; CS; ANION; THIOPHOSPHATES; CHALCOGENIDES; CATIONS;

D O I：

10.1021/ja807928d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The strongly anisotropic thioarsenates A(3)Ta(2)AsS(11) are stabilized in a polysulfide flux. All compounds contain the same parallel (1)/-[Ta2AsS113-] polymeric anionic chains, but the size of the alkali-metals has a profound effect on the packing of the chains. The K+ or Rb+ favor noncentrosymmetric packing of the chains, whereas the larger Cs+ favors the centrosymmetric packing. The chains feature the combination of two asymmetric units [Ta2S11] and [AsS3] and exhibit strong nonlinear optical (NLO) second harmonic generation.

引用

页码：75 / +

页数：4