The synthesis, structure, and electrochemical properties of Fe(C CC N)(dppe)Cp and related compounds

ME Smith, RL Cordiner, D Albesa-Jove, DS Yufit, F Hartl, JAK Howard, PJ Low

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The cyanoacetylide complex Fe(CCCN)(dppe)Cp (3) is readily obtained from sequential reaction of Fe(CCSiMe3)(dppe)Cp with methyllithium and phenyl cyanate. Complex 3 is a good metalloligand, and coordination to the metal fragments [RhCl(CO)(2)], [Ru(PPh3)(2)Cp](+), and [Ru(dppe)Cp*](+) affords the corresponding cyanoaceylide-bridged heterobimetallic complexes. In the case of the 36-electron complexes [Cp(dppe)Fe-CCCN-MLn](n+), spectroscopic and structural data are consistent with a degree of charge transfer from the iron centre to the rhodium or ruthenium centre via the C3N bridge, giving rise to a polarized ground state. Electrochemical and spectroelectrochemical methods reveal significant interactions between the metal centres in the oxidized (35 electron) derivatives, [Cp(dppe)Fe-CCCN-MLn]((n+1)+).

Original languageEnglish
Pages (from-to)154-163
Number of pages10
JournalCanadian Journal of Chemistry
Issue number2
Publication statusPublished - Feb 2006
Externally publishedYes

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