Issue 12, 2005

Oxidation reactions of an anionic gallium(i) N-heterocyclic carbene analogue with group 16 compounds

Abstract

The reactivity of an anionic gallium(I) heterocycle, [K(tmeda)][:Ga{[N(Ar)C(H)]2}], Ar = C6H3Pri2-2,6, towards sources of elemental chalcogens and diorgano-dichalcogenides has been investigated and comparisons drawn with the reactivity of the valence isoelectronic N-heterocyclic carbene class of ligand. The reactions of the heterocycle with N2O or (Te)PEt3 yielded the dimeric, dianionic gallium(III) complexes, [K(L)]2[(µ-E)Ga{[N(Ar)C(H)]2}]2, E = O, L = tmeda; E = Te, L = THF. Treatment of [K(tmeda)][:Ga{[N(Ar)C(H)]2}] with the diphenyl dichalcogenides, PhEEPh, E = Se or Te, gave the one dimensional polymer, [K[(PhSe)2Ga{[N(Ar)C(H)]2}]] and the monomeric complex, [K(OEt2)3][(PhTe)2Ga{[N(Ar)C(H)]2}], respectively. The X-ray crystal structures of the four complexes are reported.

Graphical abstract: Oxidation reactions of an anionic gallium(i) N-heterocyclic carbene analogue with group 16 compounds

Supplementary files

Article information

Article type
Paper
Submitted
12 Apr 2005
Accepted
11 May 2005
First published
23 May 2005

Dalton Trans., 2005, 2106-2110

Oxidation reactions of an anionic gallium(I) N-heterocyclic carbene analogue with group 16 compounds

R. J. Baker, C. Jones and M. Kloth, Dalton Trans., 2005, 2106 DOI: 10.1039/B505085E

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