Tellurium Polycations by Oxidation of Tellurium with Tungsten Halides Syntheses and Crystal Structures of Te6(WOCl4)2and Te6I2(WCl6)2
作者:
Johannes Beck,
期刊:
Chemische Berichte
(WILEY Available online 1995)
卷期:
Volume 128,
issue 1
页码: 23-27
ISSN:0009-2940
年代: 1995
DOI:10.1002/cber.19951280104
出版商: WILEY‐VCH Verlag
关键词: cyclo‐Hexatellurium(2+);1,4‐Diiodo‐cyclo‐hexatellurium(2+);Hexachlorotungstate(V);Tetrachlorooxotungstate(V)
数据来源: WILEY
摘要:
AbstractWOCl4reacts at 200°C with tellurium in a sealed, evacuated ampoule with the formation of Te6(WOCl4)2. The structure consists of six‐membered tellurium rings in a boat conformation with significant transannular interactions and of pyramidal WOCl4units which are linked by linear asymmetric O...;WO bridges to polymeric (WOCl4)n, chains. The observed paramagnetism is consistent with the ionic formulation Te2+6[(WOCl−4)2]n. In the reaction of WCl6, I2and Te in a 2:1:6 ratio Te6I2(WCl6)2is formed at 150°C. The crystal structure consists of Te6I2+2cations and of slightly distorted octahedral WCl−6anions. The Te6I2+2ions are isostructural with Se6I2+2and consist of a six‐membered ring of Te atoms in the chair conformation with two I atoms bound in the 1,
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