Jump to main content
Jump to site search

Issue 9, 2002
Previous Article Next Article

Bidentate N-heterocyclic carbene complexes of Group 13 trihydrides and trihalides

Author affiliations

Abstract

Treatment of the potentially chelating bis-carbene, 1,2-ethylene-3,3′-di-tert-butyl-diimidazole-2,2′-diylidene, EtIBut, with [MH3(NMe3)], M = Al, Ga, In, in a 1 ∶ 1 or 1 ∶ 2 stoichiometery led to good yields of the metal rich 2 ∶ 1 adducts, [(MH3)2(μ-EtIBut)]. These complexes have been spectroscopically characterised and the X-ray crystal structures of two (M = Al or In) obtained. In contrast, the 1 ∶ 1 or 1 ∶ 2 reactions of EtIBut with MX3, M = In or Tl, X = Br or Cl, led to the 1 ∶ 1 adducts, [MX3(EtIBut)]. The X-ray crystal structure of one of these, [InBr3(EtIBut)], shows the ligand to act in a chelating mode, taking up equatorial positions of an trigonal bipyramid. The reactions of EtIBut with MCl3, M = Al or Ga, led to decomposition and in the aluminium reaction the major product of the decomposition process was the bis-imidazolium salt, [EtIButH2][Cl]2, which has also been crystallographically characterised. Several related reactions are described.

Graphical abstract: Bidentate N-heterocyclic carbene complexes of Group 13 trihydrides and trihalides

Back to tab navigation

Supplementary files

Article information


Submitted
14 Jan 2002
Accepted
08 Mar 2002
First published
05 Apr 2002

J. Chem. Soc., Dalton Trans., 2002, 1992-1996
Article type
Paper

Bidentate N-heterocyclic carbene complexes of Group 13 trihydrides and trihalides

R. J. Baker, M. L. Cole, C. Jones and M. F. Mahon, J. Chem. Soc., Dalton Trans., 2002, 1992
DOI: 10.1039/B200500J

Search articles by author

Spotlight

Advertisements