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Binuclear oxidative addition of Sb-Cl bonds: A facile synthetic route to main group-transition element clusters and rings
Y.-Z. Li, , W.K. Leong
Published in American Chemical Society
Volume: 33
Issue: 14
Pages: 3867 - 3876
Binuclear oxidative addition of Sb-Cl bonds with the clusters Os 3(CO)11(NCCH3), 1, or Os3(CO) 10(NCCH3)2, 2, was found to be an effective synthetic route to organometallic clusters and rings containing μ2-SbPh2 or μ3-SbPh moieties. Thus, the reaction of SbPh2Cl with 1 afforded the tetranuclear ring Os 3(CO)11(Cl)(μ-SbPh2), 3, while its reaction with 2 afforded the pentanuclear ring Os3(CO)10(Cl) 2(μ-SbPh2)2, 6. In each case, two or three isomeric products were isolated depending on the reaction conditions. The analogous reaction of SbPhCl2 with 1, on the other hand, afforded the spiked triangular cluster Os3(CO)11(Cl) 2(μ3-SbPh), 7, which also existed as two isomers. Pathways for these reactions have been proposed, and the experimental and computational evidence presented. © 2014 American Chemical Society.
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Published in American Chemical Society
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