1H and 13C NMR Spectroscopic Study of Titanium(IV) Species Formed by Activation of Cp2TiCl2 and [(Me4C5)SiMe2NtBu]TiCl2 with Methylaluminoxane (MAO) Full article
Journal |
Organometallics
ISSN: 0276-7333 , E-ISSN: 1520-6041 |
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Output data | Year: 2004, Volume: 23, Number: 1, Pages: 149-152 Pages count : 4 DOI: 10.1021/om034026l | ||||||
Tags | OLEFIN POLYMERIZATION; CATALYSTS; COMPLEXES | ||||||
Authors |
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Affiliations |
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Funding (1)
1 | International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union | 00-841 |
Abstract:
Using 13C and 1H NMR spectroscopy, the products of the reaction of Cp2TiCl2 with methylaluminoxane (MAO) at Al:Ti ratios of 5:1 to 300:1 have been identified as Cp2TiMeCl, Cp2TiMe2, [Cp2TiMe(μ-Cl)Cp2TiCl]+[Me-MAO]- (II1), [Cp2TiMe(μ-Cl)Cp2TiMe]+[Me-MAO]- (II2), [Cp2TiMe(μ-Me)Cp2TiMe]+[Me-MAO]- (II3), the heterobinuclear ion pair [Cp2Ti(μ-Me)2AlMe2]+[Me-MAO]- (III), and a “zwitterion-like” intermediate, formulated as Cp2TiMe+←Me-Al-⋮MAO (IV). In contrast, [(Me4C5)SiMe2NtBu]TiCl2/MAO gives only zwitterion-like, not heterobinuclear, species.
Cite:
Bryliakov K.P.
, Talsi E.P.
, Bochmann M.
1H and 13C NMR Spectroscopic Study of Titanium(IV) Species Formed by Activation of Cp2TiCl2 and [(Me4C5)SiMe2NtBu]TiCl2 with Methylaluminoxane (MAO)
Organometallics. 2004. V.23. N1. P.149-152. DOI: 10.1021/om034026l WOS Scopus РИНЦ
1H and 13C NMR Spectroscopic Study of Titanium(IV) Species Formed by Activation of Cp2TiCl2 and [(Me4C5)SiMe2NtBu]TiCl2 with Methylaluminoxane (MAO)
Organometallics. 2004. V.23. N1. P.149-152. DOI: 10.1021/om034026l WOS Scopus РИНЦ
Dates:
Submitted: | Jul 8, 2003 |
Published online: | Dec 3, 2003 |
Published print: | Jan 1, 2004 |
Identifiers:
Web of science | WOS:000187727600023 |
Scopus | 2-s2.0-1642536659 |
Elibrary | 13465367 |
Chemical Abstracts | 2003:939604 |
Chemical Abstracts (print) | 140:146238 |
OpenAlex | W2060421826 |