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Type: Journal article
Title: Alkynyl and poly-ynyl derivatives of carbon-tricobalt clusters
Author: Antonova, A.
Bruce, M.
Humphrey, P.
Gaudio, M.
Nicholson, B.
Scoleri, N.
Skelton, B.
White, A.
Zaitseva, N.
Citation: Journal of Organometallic Chemistry, 2006; 691(22):4694-4707
Publisher: Elsevier Science Sa
Issue Date: 2006
ISSN: 0022-328X
Statement of
Alla B. Antonova, Michael I. Bruce, Paul A. Humphrey, Maryka Gaudio, Brian K. Nicholson, Nancy Scoleri, Brian W. Skelton, Allan H. Whited and Natasha N. Zaitseva
Abstract: A series of alkynyl-tricobalt carbonyl clusters, Co3(μ3-CnR)(μ-dppm)(CO)7 [R = But, Ph, C6H4I, C6H4CCPh, SiMe3, Fc, Au(PPh3)] containing three, five or seven carbons in the chain, have been prepared by elimination of phosphine–gold(I) halides in reactions between Co3(μ3-CBr)(μ-dppm)(CO)7 and Au(CCR)(PPh3) or between Co3{μ3-CCCAu(PR3)} (μ-dppm)(CO)7 (R = Ph, tol) and ICCR′ (R′ = SiMe3, Fc). The use of poly-substituted arenes or ferrocenes has enabled preparation of the complexes 1,4-{(OC)7(μ-dppm)Co3 (μ3-CCC)}2C6H3X-5 (X = H, Br), 1,3,5-{(OC)7(μ-dppm)Co3(μ3-CCC)}3C6H3 and 1,1′-{(OC)7(μ-dppm)Co3 (μ3-CCC)}2Fc′ [Fc′ = Fe(η-C5H4-)2]. The X-ray determined molecular structures of 12 of the complexes are reported.
Keywords: Carbon-tricobalt cluster; Alkyne; Poly-yne; X-ray structure; Gold
RMID: 0020061588
DOI: 10.1016/j.jorganchem.2006.08.004
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