Synthesis and Characterization of the Quaternary Thio-aluminogermanates A(AlS2)(GeS2) (A = Na, K)

Mohammed Al-Bloushi, Bambar Davaasuren, Abdul-Hamid M. Emwas, Alexander Rothenberger

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

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) Å, c = 5.8560(12) Å for Na(AlS2)(GeS2) and a = 7.8826(2) Å, c = 5.8642(4) Å 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. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish (US)
Pages (from-to)1352-1356
Number of pages5
JournalZeitschrift für anorganische und allgemeine Chemie
Volume641
Issue number7
DOIs
StatePublished - May 27 2015

ASJC Scopus subject areas

  • Inorganic Chemistry

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