Synthesis and Characterization of the Quaternary Thioaluminogermanates A(AlS2)(GeS2) (A = Na, K)

被引：13

作者：

Al-Bloushi, Mohammed ^{[1
]}

Davaasuren, Bambar ^{[1
]}

Emwas, Abdul-Hamid ^{[2
]}

Rothenberger, Alexander ^{[1
]}

机构：

[1] KAUST, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia

[2] KAUST, Imaging & Characterizat Core Lab, Thuwal 239556900, Saudi Arabia

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2015年 / 641卷 / 07期

关键词：

Thioaluminogermanate; Semiconductors; Anionic chain; Germanium; Chalcogenide; CRYSTAL-STRUCTURES; AL-TOBERMORITE; GE; THIOGERMANATE; POTASSIUM; SULFIDES; SE; SN; CU;

D O I：

10.1002/zaac.201500021

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The quaternary thioaluminogermanates Na(AlS2)(GeS2) (1) and K(AlS2)(GeS2) (2) crystallize in the tetragonal space group I4/mcm (no. 140) with unit cell parameters a = 7.4274(11) angstrom, c = 5.8560(12) angstrom for Na(AlS2)(GeS2) and a = 7.8826(2) angstrom, c = 5.8642(4) angstrom for K(AlS2)(GeS2). The crystal structure comprises of one-dimensional [(AlS2)(GeS2)](-) anionic chains with Al and Ge sharing the tetrahedral site. The alkali metal cations fill the square antiprismatic voids between chains. Both 1 and 2 are semiconductors with bandgap of around 3.6 eV and 3.5 eV, respectively.

引用

页码：1352 / 1356

页数：5

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