首页   按字顺浏览 期刊浏览 卷期浏览 Tellurium Polycations by Oxidation of Tellurium with Tungsten Halides Syntheses and Cry...
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...;WO 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,

 

点击下载:  PDF (458KB)



返 回