Preparation and molecular structures of the decanuclear diynyl-ruthenium-silver and -copper complexes [M63-C≡CC≡C[Ru(dppe)Cp*]}4(μ-dppm)2](BF4)2 (M = Ag, Cu)

M.I. Bruce, Paul Low, B.K. Nicholson, Brian Skelton, N.N. Zaitseva, X. Zhao

Research output: Contribution to journalArticle

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Abstract

Reactions between [M2(dppm)2(NCMe)2]X2 [M = Ag, X = ClO4; M = Cu, X = BF4] and Ru(C≡CC≡CM)(dppe)Cp∗ [M = Ag, Cu; generated in situ from Ru(C≡CC≡CH)(dppe)Cp∗ and AgNO3 or CuCl(PPh3), respectively] afford the cationic mixed-metal cluster diynyl complexes [M6{μ3-C≡CC≡C[Ru(dppe)Cp∗]}4(μ-dppm)2]X2, of which the structures were determined by single-crystal XRD studies. Electrochemical studies indicate that there is no interaction between the ruthenium centres. Reactions between [M2(μ-dppm)2(NCMe)2](BF4)2 and Ru(C≡CC≡CM′)(dppe)Cp∗ (M,M′ = Cu, Ag) afforded a mixture of Ag6−nCun clusters, as shown by ES-MS and crystallographic studies. Preliminary studies suggest that extensive disproportionation occurs in solution.
Original languageEnglish
Pages (from-to)1569-1575
JournalJournal of Organometallic Chemistry
Volume695
Issue number10-11
Early online date16 Mar 2010
DOIs
Publication statusPublished - 15 May 2010

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