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|Title:||Triosmium-antimony clusters containing the μ,η2-phenylene ligand: Unusually long osmium-osmium bonds||Authors:||Chen, G.
|Issue Date:||15-Jan-2006||Citation:||Chen, G., Deng, M., Lee, C.K.D., Leong, W.K., Tan, J., Tay, C.T. (2006-01-15). Triosmium-antimony clusters containing the μ,η2-phenylene ligand: Unusually long osmium-osmium bonds. Journal of Organometallic Chemistry 691 (3) : 387-394. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jorganchem.2005.09.005||Abstract:||The reaction of the osmium-antimony cluster Os3(μ-H)(μ- SbPh2)(μ3,η2-C6H 4)(CO)9 with AsPh3 at room temperature afforded the o-phenylene cluster Os3(μ-H)(SbPh2) (μ2,η2-C6H4)(CO) 9(AsPh3) by nucleophilic addition via a metal-metal bond cleavage, and the substitution product Os3(μ-H)(SbPh 2)(μ3,η2-C6H 4)(CO)8(AsPh3). It reacted with tBuNC to afford the adduct Os3(μ-H)(SbPh 2)(μ2,η2-C6H 4)(CO)9(CNtBu) quantitatively. This adduct isomerised slowly on standing via migration of the isonitrile, while photolysis led to decarbonylation to Os3(μ-H)(SbPh2) (μ2,η2-C6H4)(CO) 8(CNtBu). All the products have been characterised completely, including by X-ray crystallography, and their structures exhibit very long Os-Os bonds. © 2005 Elsevier B.V. All rights reserved.||Source Title:||Journal of Organometallic Chemistry||URI:||http://scholarbank.nus.edu.sg/handle/10635/95349||ISSN:||0022328X||DOI:||10.1016/j.jorganchem.2005.09.005|
|Appears in Collections:||Staff Publications|
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