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Acetylene polymerization by titanocene alkyne complexes

โœ Scribed by A. Ohff; V.V. Burlakov; U. Rosenthal

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
459 KB
Volume
108
Category
Article
ISSN
1381-1169

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โœฆ Synopsis

Efficient

polymerization of acetylene is achieved by using titanocene alkyne complexes as precatalysts. The in situ generated titanocene 'Cp,Ti' is the catalytically active species which induces acetylene polymerization.

A mechanism including an exo-allylidene metallacyclobutene complex for the catalytic formation of polyacetylene is proposed.

๐Ÿ“œ SIMILAR VOLUMES

Isomerization of olefins by titanocene a
Isomerization of olefins by titanocene and zirconocene alkyne complexes
โœ A. Ohff; V.V. Burlakov; U. Rosenthal ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 690 KB

An efficient isomerization of aliphatic and cyclic olelins is achieved by using well-defined metallocene alkyne complexes as catalysts. Titanocene complexes isomerize I-alkenes to internal alkenes under mild conditions. The titanium complex was recovered quantitatively. Cyclic olcfins, e.g. cyclohex

Dehydrocoupling of Silanes Catalyzed by
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โœ Normen Peulecke; Dominique Thomas; Wolfgang Baumann; Christine Fischer; Uwe Rose ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 233 KB

Thezirconocene-and titanocene alkyne complexes 1-10 were tested to be effective catalysts in the dehydrocoupling of hydrosilanes like PhMeSiHz and PhJ3iHz to give oligomers and of other examples, e.g., PhSiHs polymers with cyclic oligosikmesas byproducts. @ 1997 Elsevier Science Ltd.