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Electron spin resonance studies of ziegler-type catalysts. Part 2. Identification and spectra of some dialkyldi(η-cyclopentadienyl)vanadium(IV) complexes

Evans, Alwyn G., Evans, Jeffrey C., Espley, David J. C., Morgan, Peter Huw and Mortimer, Jonathan 1978. Electron spin resonance studies of ziegler-type catalysts. Part 2. Identification and spectra of some dialkyldi(η-cyclopentadienyl)vanadium(IV) complexes. Journal of the Chemical Society. Dalton Transactions (1) , pp. 57-61. 10.1039/dt9780000057

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Abstract

E.s.r. evidence has been obtained for the formation of [VEt2(cp)2] on reaction of ethyl-lithium with [VCl2(cp)2](cp =η-cyclopentadienyl), and for [V(CH2SiMe3)2(cp)2] from the reaction of trimethylsilylmethyl-lithium, or the corresponding Grignard reagent, with [VCl2(cp)2]. The results have also been examined by a theoretical treatment. The Aiso, and giso, values for [VEt2(cp)2] and [V(CH2SiMe3)2(cp)2] are 6.24 mT and 1.995 and 6.45 mT and 1.990 respectively.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Business (Including Economics)
Chemistry
Subjects: Q Science > QD Chemistry
Publisher: Royal Society of Chemistry
ISSN: 0300-9246
Last Modified: 04 Jun 2017 04:22
URI: http://orca.cf.ac.uk/id/eprint/37834

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