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Synthesis of nickel(II) complexes containing neutral N,N and anionic N,O- bidentate ligands, and their behaviour as chain-growth catalysts; structural characterisation of complexes containing (mim)2CO, mimCO2-, and mimCPh2O- (mim = 1-methylimidazol-2-yl)

Citation

Batten, MP and Canty, AJ and Cavell, KJ and Ruether, T and Skelton, BW and White, AH, Synthesis of nickel(II) complexes containing neutral N,N and anionic N,O- bidentate ligands, and their behaviour as chain-growth catalysts; structural characterisation of complexes containing (mim)2CO, mimCO2-, and mimCPh2O- (mim = 1-methylimidazol-2-yl), Inorganica Chimica Acta, 359, (6) pp. 1710-1724. ISSN 0020-1693 (2006) [Refereed Article]

DOI: doi:10.1016/j.ica.2004.06.069

Abstract

The complexes NiBr2(L2) [L2 = (mim) 2CO (7a), (bim)2CO (7b), py(mim)CO (8), PhNCHbim (9)], NiBr(o-Tol){(mim)2CO} (10), Ni(L2)(o-Tol)(PPh3) [L2=mimCO2-(11a),bmCO2-(11b), mimCPh2O- (12), mimC 6H4O- (13)], and [Ni{(mim)2CO} 3][BF4]2 · 0.25H2O (16) have been synthesised from nickel(II) salts (7-9, 16) or NiBr(o-Tol)(PPh 3)2 [10-13], where mim = 1-methylimidazol-2-yl, bim = 1-benzylimidazol-2-yl, and py = pyridin-2-yl. The square-planar complexes (11a, 12) and octahedral 16 have been characterised by X-ray diffraction studies, together with octahedral cis-[Ni{(mim)2CO}2Br(OH 2)]Br · CD3CN (14) and cis-[Ni{(mim) 2CO}2(OH2)2]Br2 · 3CD3CN (15). Preliminary catalytic studies have been undertaken with a number of the nickel complexes. Complexes 11-13 form single component catalysts for the oligomerization or polymerization of ethylene and the bromo-complexes (7-9) form active catalysts for the oligomerization or polymerization of ethylene when activated with MMAO. © 2004 Elsevier B.V. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Other Chemical Sciences
Research Field:Organometallic Chemistry
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Batten, MP (Mr Michael Batten)
Author:Canty, AJ (Professor Allan Canty)
Author:Cavell, KJ (Professor Kingsley Cavell)
Author:Ruether, T (Dr Thomas Ruether)
ID Code:43091
Year Published:2006
Web of Science® Times Cited:17
Deposited By:Chemistry
Deposited On:2006-08-01
Last Modified:2009-12-10
Downloads:0

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