Metal vapor synthesis as a straightforward route to group 10 homoleptic carbene complexes

Arnold, Polly L, Cloke, F Geoffrey N, Geldbach, Tillman and Hitchcock, Peter B (1999) Metal vapor synthesis as a straightforward route to group 10 homoleptic carbene complexes. Organometallics, 18 (16). pp. 3228-3233. ISSN 02767333

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Abstract

The co-condensation of nickel, palladium, or platinum vapor with the N,N'-di-tert-butyl heterocyclic carbene 1,3-di-N-tert-butylimidazol-2-ylidene [C{N(But)OH}2] (L) provides a novel and straightforward synthesis of the stable, two-coordinate homoleptic metal carbene complexes NiL2 (1), PdL2 (2), and PtL2 (3). A single-crystal X-ray structural determination of 2 and 3 shows the two complexes to be isomorphous; in the solid state the metal center is linear and two-coordinate and the molecules approach D2d symmetry with a dihedral angle of 90° between the planar rings of the two ligand heterocycles. The metal center in 2 appears to be an essential mediator in the quantitative conversion of the ligated carbene into dihydroimidazoline, which is cleanly eliminated from a solution of the complex under an atmosphere of dihydrogen; 2 also reversibly coordinates ethene.

Item Type: Article
Schools and Departments: School of Life Sciences > Chemistry
Depositing User: Geoff Cloke
Date Deposited: 06 Feb 2012 20:31
Last Modified: 27 Mar 2012 15:01
URI: http://sro.sussex.ac.uk/id/eprint/26349
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