Controlled synthesis of dinuclear acetylide-bridged ruthenium complexes

Leslie D. Field, Alison M. Magill, Timothy K. Shearer, Stephen B. Colbran, Sang T. Lee, Scott J. Dalgarno, Mohan M. Bhadbhad

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28 Citations (Scopus)


A series of dinuclear and trinuclear, acetylide-bridged ruthenium(II) complexes was synthesized by the condensation of terminal acetylenes with methyl ruthenium complexes. Dinuclear ruthenium(II) complexes trans,trans-(RC=C) Ru(dmpe)2(µ-C=CC6H4C=C)Ru(C=CR')(dmpe) 2 (R = R' = Ph; R = R/ = 'Bu; R = Ph, R' = 'Bu; R = 'Bu, R' = 3,5-'Bu2-C6H3) were synthesized by the reaction of trans-(CH3)Ru(dmpe)2(C=CR) with the unsymmetrical bis(acetylido)ruthenium(II) complex trans-(R'C=C)Ru(dmpe)2(C=CC 6H4C=CH) at ambient temperature and pressure. These complexes were fully characterized by NMR spectroscopy, and trans,trans-('BuC=C) Ru(dmpe)2(µ-C=CC6H4C=C)Ru(dmpe) 2(C=C'Bu) was characterized crystallographically. The symmetrical trinuclear ruthenium(II) complexes trans,trans,trans-(RC=C)Ru(dmpe) 2(µ-C=CC6H4C=C)Ru(depe)2(µ-C=CC 6H4C=C)-Ru(dmpe)2(C=CR) (R = Ph, 'Bu, SiMe 3) were also prepared and characterized, and the redox behavior of a subset of the complexes was studied using cyclic voltammetry. © 2010 American Chemical Society.

Original languageEnglish
Pages (from-to)957-965
Number of pages9
Issue number4
Publication statusPublished - 22 Feb 2010


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