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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 11, Number 6
BKCSDE 11(6)
June 20, 1990

Title	Synthesis and Fluxionality of a Tungsten-Triosmium Cluster Compound CpWOs3(CO)11(μ3-CTol)
Author	Joon T. Park*, John R. Shapley
Keywords
Abstract	The reaction of Os3(CO)10(NCMe)2 with a tungsten alkylidyne Cp(CO)2W≡CTol(Cp = η5-C5H5, Tol = p-C6H4Me) produces the compound, CpWOs3(CO)11(μ3-CTol)(1). The structure of compound 1 can be viewed as one in which the metalla-alkyne, Cp(CO)2W≡CTol, is μ3-η2-⊥ (perpendicular) bound to an Os3(CO)9 fragment.Variable-temperature 13C NMR spectra of 1 show no evidence for the analogous rotation of the metalla-alkyne molecule as shown alkyne rotation in Os3(CO)9(C2Tol2) compound. This lack of the metalla-alkyne fluxionality supports the apparent saturated nature of compound 1.
Page	531 - 534
Full Text	PDF

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