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Title: Ligand substitution in the heterometallic cluster Cp*IrOs 3(μ-H)2(CO)10
Authors: Srinivasan, P.
Leong, W.K. 
Keywords: Cluster
Issue Date: 15-Jan-2006
Citation: Srinivasan, P., Leong, W.K. (2006-01-15). Ligand substitution in the heterometallic cluster Cp*IrOs 3(μ-H)2(CO)10. Journal of Organometallic Chemistry 691 (3) : 371-379. ScholarBank@NUS Repository.
Abstract: The reactions of the heterometallic cluster Cp*IrOs 3(μ-H)2(CO)10 with phosphines, isonitriles and pyridine under TMNO activation afforded the substitution products Cp*IrOs3(μ-H)2(CO)10-nLn (n = 1, 2; L = PPh3, P(OMe)3, tBuNC, CyNC or py) in good yields. For the monosubstituted derivatives, the substitution site was exclusively at an osmium atom in an axial position for L = phosphine or phosphite. Spectroscopic evidence suggested the presence of isomers in solution for the PPh3 derivative. In contrast, for L = isonitrile, the ligand occupied an equatorial site. In the disubstituted derivatives, the group 15 ligands were coordinated to two different osmium atoms, one each at an axial and an equatorial site. The isomerism and fluxional behaviour of some of these clusters have also been examined. © 2005 Elsevier B.V. All rights reserved.
Source Title: Journal of Organometallic Chemistry
ISSN: 0022328X
DOI: 10.1016/j.jorganchem.2005.09.036
Appears in Collections:Staff Publications

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