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Ruthenium-Olefin Complexes: Effect of Ligand Variation upon Geometry

Anderson, Donde R. and O'Leary, Daniel J. and Grubbs, Robert H. (2008) Ruthenium-Olefin Complexes: Effect of Ligand Variation upon Geometry. Chemistry: a European Journal, 14 (25). pp. 7536-7544. ISSN 0947-6539.

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The development of a model system to study ruthenium-olefin complexes relevant to the mechanism of olefin metathesis has been reported recently. Upon addition of the ligand precursor 1,2-divinylbenzene to [RuCl2(Py)2(H2IMes)(CHPh)] (H2IMes=1,3-dimesityl-4,5-dihydroimidazol-2-ylidene), two ruthenium-olefin adducts are formed. Based on 1H NMR spectroscopy experiments and X-ray crystallographic analysis, these complexes are assigned as side-bound isomers in which the olefin and H2IMes ligands are coordinated cis to each other. Herein is reported an investigation of the generality of these observations through variation of the N-heterocyclic carbene ligand and the ligand precursor.

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Grubbs, Robert H.0000-0002-0057-7817
Additional Information:© 2008 Wiley-VCH. Received: 30 August 2007; Revised: 11 May 2008; Published online: May 16, 2008. The authors thank Materia Inc., Jacob M. Berlin and Tobias Ritter for generous donation of ruthenium complexes. Lawrence M. Henling and Dr. Michael Day are acknowledged for X-ray crystallographic analysis. D.R.A. acknowledges NSF and NDSEG predoctoral fellowships. D.J.O. thanks the Mellon Foundation for support. R.H.G. was supported by the NSF (CHE-0410425). Supporting information for this article is available on the WWW under or from the author.
Funding AgencyGrant Number
Andrew W. Mellon FoundationUNSPECIFIED
National Defense Science and Engineering Graduate (NDSEG) FellowshipUNSPECIFIED
Subject Keywords:alkene ligands; ligand effects; olefin metathesis; reaction mechanisms
Issue or Number:25
Record Number:CaltechAUTHORS:ANDcaej08
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11914
Deposited By: Archive Administrator
Deposited On:09 Oct 2008 21:35
Last Modified:03 Oct 2019 00:23

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