ISSN:
0044-2313
Keywords:
Silylenes
;
1,3-Diselena-2,4-disiletane
;
1,3-Ditellura-2,4-disiletane
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Silylene Reactions with Selenophene and a Tellurophene: Formation and Structures of a 1,3-Diselena-2,4-disiletane and a 1,3-Ditellura-2,4-disiletane [1]Di-tert-butylsilylene, generated by photolysis of hexa-tert-butylcyclotrisilane, reacts with selenophene or 2,5-dimethyltellurophene by chalcogen abstraction to furnish the 1,3-diselena-2,4-disiletane 6 and 1,3-ditellura-2,4-disiletane 7 ring systems. The X-ray structure analyses of 6 and 7 reveal strictly planar four-membered rings with the smaller endocyclic angles at the chalcogen and the larger angles at the silicon atoms.
Notes:
Photolytisch aus Hexa-tert-butylcyclotrisilan erzeugtes Di-tert-butylsilylen reagiert mit Selenophen oder 2,5-Dimethyltellurophen unter Chalkogenabstraktion zum 1,3-Diselena-2,4-disiletan 6 und 1,3-Ditellura-2,4-disiletan 7. Die Röntgenstrukturanalysen von 6 und 7 zeigen das Vorliegen planarer Vierringe mit den kleineren endocyclischen Winkeln an den Chalkogen- und den größeren an den Siliciumatomen.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19976230817
