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Ethylene Trimerization with Cr-PNP and Cr-SNS Complexes: Effect of Ligand Structure, Metal Oxidation State, and Role of Activator on Catalysis

Citation

McGuinness, DS and Brown, DB and Tooze, RP and Hess, FM and Dixon, JT and Slawin, AMZ, Ethylene Trimerization with Cr-PNP and Cr-SNS Complexes: Effect of Ligand Structure, Metal Oxidation State, and Role of Activator on Catalysis, Organometallics, 25, (15) pp. 3605-3610. ISSN 0276-7333 (2006) [Refereed Article]

DOI: doi:10.1021/om0601091

Abstract

Selected PNP and SNS ethylene trimerization ligands have been coordinated to CrII and CrIII, and further reactions of these complexes have been studied. The ligands are easily deprotonated to afford monoanionic tridentate ligands. All prepared complexes gave ethylene trimerization catalysis with varying degrees of activity upon activation with both MAO and AlR3/B(C6F5)3. The results of this study show that the role of MAO during activation is one of deprotonation, Cr reduction, and cation generation. A Cr II→CrIV cationic mechanism is suggested. © 2006 American Chemical Society.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Other Chemical Sciences
Research Field:Industrial Chemistry
Objective Division:Manufacturing
Objective Group:Industrial Chemicals and Related Products
Objective Field:Organic Industrial Chemicals (excl. Resins, Rubber and Plastics)
Author:McGuinness, DS (Dr David McGuinness)
ID Code:46826
Year Published:2006
Web of Science® Times Cited:68
Deposited By:Chemistry
Deposited On:2007-09-04
Last Modified:2007-09-04
Downloads:0

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