{[Ga(en)3]2(Ge2Te15)n : A Polymeric Semiconducting Polytelluride with Boat-Shaped Te84- Rings and Cross-Shaped Te56- Units

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)10910-10912
Journal / PublicationInorganic Chemistry
Volume48
Issue number23
Online published11 Nov 2009
Publication statusPublished - 7 Dec 2009
Externally publishedYes

Abstract

The reaction of the Zintl compound K4Ge9 with Te and Ga2Te3 in ethylenediamine (en) at 190 °C gave the germanium polytelluride {[Ga(en)3]2[(GeTe)2(Te5)6-(Te8)4-]}n (1). The single-crystal structure analysis revealed that 1 has two different polytelluride fragments: cross-shaped 36·e- TeTe46- anions and boat-shaped 52·e- Te84- rings. The new material is a p-type semiconductor at room temperature and switches to n-type at 380 K. © 2009 American Chemical Society.