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N-heterocyclic 'pincer' dicarbene complexes of cobalt(I), cobalt(II), and cobalt(III)

N-heterocyclic 'pincer' dicarbene complexes of cobalt(I), cobalt(II), and cobalt(III)
N-heterocyclic 'pincer' dicarbene complexes of cobalt(I), cobalt(II), and cobalt(III)
The complex Co(C-N-C)Br-2 (C-N-C = 2,6-bis(aryl-imidazol-2-ylidene)pyridine, aryl = 2,6-(Pr2C6H3)-C-i), prepared by aminolysis of Co[N(SiMe3)(2)](2) with the corresponding imidazolium salt, (CH-N-CH)Br-2, was methylated to the square-planar Co(C-N-C-)(CH3) and oxidized with BrN(SiMe3)(2) to give Co(C-N-C)Br-3. The new Co(II), Co(III), and Co(I) complexes show no ethylene polymerization activity.
carbene, polymerization, ethylene, ligands, iron, catalysis, palladium, bearing, c-2
0276-7333
4807-4810
Danopoulos, Andreas A.
4919c13e-ebe4-4456-b329-c806c8e22236
Wright, Joseph A.
3e730775-dda4-4d1e-83ad-8b1e96fb2cbe
Motherwell, William B.
77559985-75b3-4d25-9a26-9a93c520a871
Ellwood, Simon
b78c870e-bc33-4c96-898b-cc273bd6ecc5
Danopoulos, Andreas A.
4919c13e-ebe4-4456-b329-c806c8e22236
Wright, Joseph A.
3e730775-dda4-4d1e-83ad-8b1e96fb2cbe
Motherwell, William B.
77559985-75b3-4d25-9a26-9a93c520a871
Ellwood, Simon
b78c870e-bc33-4c96-898b-cc273bd6ecc5

Danopoulos, Andreas A., Wright, Joseph A., Motherwell, William B. and Ellwood, Simon (2004) N-heterocyclic 'pincer' dicarbene complexes of cobalt(I), cobalt(II), and cobalt(III). Organometallics, 23 (21), 4807-4810. (doi:10.1021/om049489l).

Record type: Article

Abstract

The complex Co(C-N-C)Br-2 (C-N-C = 2,6-bis(aryl-imidazol-2-ylidene)pyridine, aryl = 2,6-(Pr2C6H3)-C-i), prepared by aminolysis of Co[N(SiMe3)(2)](2) with the corresponding imidazolium salt, (CH-N-CH)Br-2, was methylated to the square-planar Co(C-N-C-)(CH3) and oxidized with BrN(SiMe3)(2) to give Co(C-N-C)Br-3. The new Co(II), Co(III), and Co(I) complexes show no ethylene polymerization activity.

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Published date: 11 October 2004
Keywords: carbene, polymerization, ethylene, ligands, iron, catalysis, palladium, bearing, c-2

Identifiers

Local EPrints ID: 20179
URI: https://eprints.soton.ac.uk/id/eprint/20179
ISSN: 0276-7333
PURE UUID: 53e43960-42bd-4db9-859b-9a76f9ab40bf

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Date deposited: 22 Feb 2006
Last modified: 17 Jul 2017 16:29

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Contributors

Author: Andreas A. Danopoulos
Author: Joseph A. Wright
Author: William B. Motherwell
Author: Simon Ellwood

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