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Issue 17, 2000
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Synthesis and reactions of (tert-butylimido)bis(η-cyclopentadienyl)niobium cations: NMR evidence for d0olefincations [Nb{(η-C5H5)2}(NtBu)(η-C2H4)][B(C6F5)4] and [Nb{(η-C5H4)CMe2(η-C5H4)}(NtBu)(η-C2H3Me)][B(C6F5)4]

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Abstract

The new (tert-butylimido)η-cyclopentadienylniobium compounds [Nb(η-C5H5)2(NtBu)(O3SCF3)] 1*, [Nb(η-C5H5)2(NtBu)(PMe3)][O3SCF3] 2*, [Nb(η-C5H5)2(NtBu)][MeB(C6F5)3] 3, [Nb(η-C5H5)2(NtBu)][B(C6F5)4] 4, [Nb(η-C5H5)2(NtBu)(η-C2H4)][B(C6F5)4] 5, [Nb{(η-C5H4)2CMe2}(NtBu)(O3SCF3)] 6, [Nb{(η-C5H4)2CMe2}(NtBu)][B(C6F5)4] 7, [Nb{(η-C5H4)2CMe2}(NtBu)(η-C2H4)][B(C6F5)4] 8 and [Nb{(η-C5H4)2CMe2}(NtBu)(η-C3H6)][B(C6F5)4] 9 have been prepared and characterised; * indicates the crystal structure has been determined.

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Supplementary files

Article information


Submitted
22 May 2000
Accepted
05 Jul 2000
First published
09 Aug 2000

J. Chem. Soc., Dalton Trans., 2000, 2952-2959
Article type
Paper

Synthesis and reactions of (tert-butylimido)bis(η-cyclopentadienyl)niobium cations: NMR evidence for d0 olefin cations [Nb{(η-C5H5)2}(NtBu)(η-C2H4)][B(C6F5)4] and [Nb{(η-C5H4)CMe2(η-C5H4)}(NtBu)(η-C2H3Me)][B(C6F5)4]

M. J. Humphries, R. E. Douthwaite and M. L. H. Green, J. Chem. Soc., Dalton Trans., 2000, 2952
DOI: 10.1039/B004062M

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