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N-Functionalised heterocyclic carbene complexes of silver

N-Functionalised heterocyclic carbene complexes of silver
N-Functionalised heterocyclic carbene complexes of silver
N-Functionalised imidazol-2-ylidene carbene complexes of Ag-I have been prepared by interaction of the corresponding imidazolium salt with Ag2O in dichloromethane or 1,2-dichloroethane in the presence of molecular sieves or with Ag2CO3 in 1,2-dichloroethane. In an analogous way disilver(I) complexes of o-phenylenedimethylenebis(imidazol-2-ylidene) have been obtained. Their structures, as determined by X-ray crystallography, indicate that the carbene ligand acts as monodentate from the carbene end or as a bridge between two different metal atoms. In one case the silver is coordinated by two carbene ligands. In the majority of the structurally characterised complexes the metal centres adopt linear geometries with M-C(carbene) bond lengths in the range of 207-210 pm characteristic of a single bond.
olefin metathesis, catalysts, ligands
1477-9226
4499-4506
Tulloch, A. A. D.
8fe08eb4-a6f5-4ebb-b0a4-19fc745a018a
Danopoulos, A. A.
b3cd9aa6-4a49-45d8-8cb6-72b1d2a441a7
Winston, S.
43a0667a-e78d-41e2-9fab-8b5b16ee516b
Kleinhenz, S.
d42fbac0-9883-4858-a271-c969e8b8c2bc
Eastham, G.
6c554f9c-20f2-4ff9-b524-aba07aca87df
Tulloch, A. A. D.
8fe08eb4-a6f5-4ebb-b0a4-19fc745a018a
Danopoulos, A. A.
b3cd9aa6-4a49-45d8-8cb6-72b1d2a441a7
Winston, S.
43a0667a-e78d-41e2-9fab-8b5b16ee516b
Kleinhenz, S.
d42fbac0-9883-4858-a271-c969e8b8c2bc
Eastham, G.
6c554f9c-20f2-4ff9-b524-aba07aca87df

Tulloch, A. A. D., Danopoulos, A. A., Winston, S., Kleinhenz, S. and Eastham, G. (2000) N-Functionalised heterocyclic carbene complexes of silver. Dalton Transactions, (24), 4499-4506. (doi:10.1039/b007504n).

Record type: Article

Abstract

N-Functionalised imidazol-2-ylidene carbene complexes of Ag-I have been prepared by interaction of the corresponding imidazolium salt with Ag2O in dichloromethane or 1,2-dichloroethane in the presence of molecular sieves or with Ag2CO3 in 1,2-dichloroethane. In an analogous way disilver(I) complexes of o-phenylenedimethylenebis(imidazol-2-ylidene) have been obtained. Their structures, as determined by X-ray crystallography, indicate that the carbene ligand acts as monodentate from the carbene end or as a bridge between two different metal atoms. In one case the silver is coordinated by two carbene ligands. In the majority of the structurally characterised complexes the metal centres adopt linear geometries with M-C(carbene) bond lengths in the range of 207-210 pm characteristic of a single bond.

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More information

Published date: 2000
Keywords: olefin metathesis, catalysts, ligands

Identifiers

Local EPrints ID: 18949
URI: http://eprints.soton.ac.uk/id/eprint/18949
ISSN: 1477-9226
PURE UUID: 665c9e0c-0bd9-44c6-a34f-f9d1e5a30202

Catalogue record

Date deposited: 20 Dec 2005
Last modified: 15 Jul 2019 19:28

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