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Reactions of substituted hydrazines with vanadium(III) compounds: crystal structures of [NH2Me2]2[VCl3)2(μ-NNMe2)3], [V(OC6H3Pri2-2,6)3(NH2NMe2)2] and [V(OC6H3Pri2-2,6)3(NH2NMePh)2].

Autorzy

C. LeFloc’h

R. A. Henderson

P. B. Hitchcock

D. L. Hughes

Zofia Janas

Raymond L. Richards

Piotr Sobota

Sławomir Szafert

Rok wydania

1996

Czasopismo

Journal of the Chemical Society, Dalton Transactions

Strony

2755-2762

DOI

10.1039/DT9960002755

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

Reaction of Me3SiNHNMe2 with [VCl3(PMePh2)2] or [VCl3(thf)3](thf = tetrahydrofuran) gave the triply hydrazide-bridged complex [NH2Me2]2[(VCl3)2(µ-NNMe2)3]1 the crystal structure of which has been determined. Cyclic voltammetry shows 1 to have E1/2ox= 0.30 V (reversible at –35 °C) and E2ox= 1.35 V (vs. ferrocene–ferrocenium). Cation exchange gave [PPh4]2[(VCl3)2(µ-NNMe2)3] and reaction with Li(SC6H2Pri3-2,4,6) gave [NH2Me2]2[{V(SC6H2Pri3-2,4,6)3}2(µ-NNMe2)2]. Treatment of [V(OC6H3Pri2-2,6)4Li(thf)] with NH2NMe2 gave the low-melting compound [V(OC6H3Pri2-2,6)3(NH2NMe2)2], shown by a structure determination to be essentially trigonal bipyramidal, with axial hydrazine ligands. The analogue [V(OC6H3Pri2-2,6)3(NH2NMePh)2] has also been prepared and shown to have a similar structure.

Adres publiczny

DOI https://doi.org/10.1039/DT9960002755

Strona internetowa wydawcy

https://www.rsc.org/

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1999

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