ISSN:
0009-2940
Schlagwort(e):
cyclo-Hexatellurium(2+)
;
1,4-Diiodo-cyclo-hexatellurium(2+)
;
Hexachlorotungstate(V)
;
Tetrachlorooxotungstate(V)
;
Chemistry
;
Inorganic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
WOCl4 reacts 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 WOCl4 units 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, I2 and Te in a 2:1:6 ratio Te6I2(WCl6)2 is formed at 150°C. The crystal structure consists of Te6I2+2cations and of slightly distorted octahedral WCl-6 anions. The Te6I2+2 ions are isostructural with Se6I2+2 and consist of a six-membered ring of Te atoms in the chair conformation with two I atoms bound in the 1,4-positions.
Zusätzliches Material:
6 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/cber.19951280104
