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Issue 19, 1998
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Carbene complexes of Group 13 trihydrides: synthesis and characterisation of [MH3{[upper bond 1 start]CN(Pri)C2Me2N[upper bond 1 end](Pri)}], M = Al, Ga or In

Abstract

The reaction of LiInH4 with NMe3·HCl yielded [InH3(NMe3)] which could not be isolated in the solid state. Treatment of [MH3(NMe3)] with either 1 or 2 equivalents of the stable carbene [upper bond 1 start]CN(Pri)C2Me2N[upper bond 1 end](Pri) afforded the carbene–metal trihydride complexes [MH3{[upper bond 1 start]CN(Pri)C2Me2N[upper bond 1 end](Pri)}], M = Al, Ga or In. The aluminium and indium complexes could also be prepared by treating either LiAlH4 or LiInH4 with 1 or 2 equivalents of [upper bond 1 start]CN(Pri)C2Me2N[upper bond 1 end](Pri). Variable temperature 1H NMR studies of the carbene–MH3 complexes revealed them to be fluxional in solution at room temperature. The crystal structures of the monomeric aluminium and gallium hydride complexes showed them to contain partially delocalised carbene ligands.

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Article information


J. Chem. Soc., Dalton Trans., 1998, 3249-3254
Article type
Paper

Carbene complexes of Group 13 trihydrides: synthesis and characterisation of [MH3{[upper bond 1 start]CN(Pri)C2Me2N[upper bond 1 end](Pri)}], M = Al, Ga or In

M. D. Francis, D. E. Hibbs, M. B. Hursthouse, C. Jones and N. A. Smithies, J. Chem. Soc., Dalton Trans., 1998, 3249
DOI: 10.1039/A805766D

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