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Unsymmetrical alkyne binding to a triruthenium centre : oxidative-addition of diphenyl ditelluride to the furyne cluster [Ru3(CO)7(μ-H)(μ3-η2-C4H2O){μ-P(C4H3O)2}(μ-dppm)]
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Ghosh, Shishir, Hogarth, Graeme, Kabir, Shariff E., Nordlander, Ebbe, Salassa, Luca and Tocher, Derek A. (2011) Unsymmetrical alkyne binding to a triruthenium centre : oxidative-addition of diphenyl ditelluride to the furyne cluster [Ru3(CO)7(μ-H)(μ3-η2-C4H2O){μ-P(C4H3O)2}(μ-dppm)]. Journal of Organometallic Chemistry, Vol.696 (No.10). pp. 1982-1989. doi:10.1016/j.jorganchem.2010.10.045 ISSN 0022-328X.
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Official URL: http://dx.doi.org/10.1016/j.jorganchem.2010.10.045
Abstract
Oxidative-addition of PhTe(2)Ph to the furyne cluster [Ru(3)(CO)(7)(mu-H)(mu(3)-eta(2)-C(4)H(2)O){mu-P(C(4)H(3)O)(2)}(mu-dppm)] (1) results in the isolation of four complexes; (i) the previously reported 54-electron cluster [Ru(3)(CO)(6)(mu(3)-Te)(2)(mu-TePh)(2)(mu-dppm)] (5) which results from elimination of trifuryl phosphine, (ii) the furenyl cluster [Ru(3)(CO)(5)(mu-eta(2)-C(4)H(3)O){mu-P(C(4)H(3)O)(2)}(mu-TePh)(2)(mu-dppm)] (6) which results from carbon-hydrogen bond formation and (iii) two new 50-electron complexes [Ru(3)(CO)(5)(mu-H)(mu(3)-eta(2)-C(4)H(2)O){mu-P(C(4)H(3)O)(2)}(mu-TePh)(2)(kappa(2)-dppm)] (7) and [Ru(3)(CO)(4)(mu-H){P(C(4)H(3)O)(3)}(mu(3)-eta(2)-C(4)H(2)O){mu-P(C(4)H(3)O)(2)}(mu-TePh)(2)(kappa(2)-dppm)] (8) both containing unsymmetrical furyne ligands. The structures of all the new compounds have been unambiguously established by single crystal X-ray crystallography. Further reactivity studies have provided a clear understanding of the relative sequence of the key oxidative-addition and reductive-elimination processes, showing that 6 is an intermediate in the formation of 7. DFT calculations have been used to shed light on the unsymmetrical binding of the furyne ligand in 7 and also to show that the adopted position of the heteroatom within the furyne ring can vary within complexes of this type. (C) 2010 Elsevier B.V. All rights reserved.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Journal or Publication Title: | Journal of Organometallic Chemistry | ||||
Publisher: | Elsevier S.A. | ||||
ISSN: | 0022-328X | ||||
Official Date: | 15 May 2011 | ||||
Dates: |
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Volume: | Vol.696 | ||||
Number: | No.10 | ||||
Page Range: | pp. 1982-1989 | ||||
DOI: | 10.1016/j.jorganchem.2010.10.045 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Ministry of Science and Information & Communication Technology, Government of the People's Republic of Bangladesh, Swedish International Development Agency (SIDA) , Swedish Research Council (VR) |
Data sourced from Thomson Reuters' Web of Knowledge
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