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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 15, Number 6
BKCSDE 15(6)
June 20, 1994

Title	Synthesis and Characterization of 1-Transition Metal Complex Substituted-2,3,4,5-Tetraphenyl-1-Silacyclopentadienyl Complexes and Generation of Transition Metal Complex-Substituted Silylene
Author	Cheolki Paek, Jaejung Ko*, Youngkun Kong, Chang Hwan Kim, Myong Euy Lee
Keywords
Abstract	New silicon-monosubstituted (η 4-2,3,4,5-tetraphenyl-l-silacyclopentadiene)transi tion metal complexes are described. (7-Alkyl-7-silanorbornadienyl)MLn(Alkyl=Methyl: MLn=CpRu(CO)2: Alkyl=Methyl: MLn=CpNi(CO): Alkyl=Ethyl: MLn=CpNi(CO)) complexes were prepared from the corresponding silole-transition metal complexes with dimethylacetylenedicarboxylate. Cycloaddition products were obtained with 2,3-dimethyl-1,3-butadiene, 2,3-butanedione, and 1,4-benzoquinone through the ruthenium-substituted silylene. We have determined the crystal structure of (1-methyl-2,3,4,5-tetraphenyl-l-silacyclopentadien yl)cyclopentadienyldicarbonylruthenium by using graphite monochromated Mo-Ka radiation. The compound was crystallized in the monoclinic space group P21/c with a = 9.838(l), b = 15.972(3), c = 18.327(3) Å, and β = 94.28(l)°. The ruthenium moiety CpRu(CO)2 on silicon is in an axial position.
Page	460 - 465
Full Text	PDF

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