A combined spectroelectrochemical and computational study of the chemically reversible 2-electron reduction of [Ru-4(mu-RC2R)(2)(CO)(11)] clusters

OF Koentjoro, PJ Low, R Rousseau, C Nervi, DS Yufit, JAK Howard, KA Udachin

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The 62-CVE clusters Ru-4(mu-RC2R)(2)(CO)(11), which feature a dodecahedral cluster core, are readily reduced to a 64-CVE dianion in a process that is essentially chemically reversible. A combination of electrochemical, spectroelectrochemical, and computational analyses of the system indicates that the first formed dianion, which features a square planar arrangement of the metal centers with the alkyne ligands located on opposite faces of the M-4 square and oriented in a manner such that the C-C bonds are perpendicular to each other, undergoes a thermal rearrangement giving a product in which the alkyne vectors lie parallel to each other across the metal framework.

Original languageEnglish
Pages (from-to)1284-1292
Number of pages9
Issue number6
Publication statusPublished - 14 Mar 2005
Externally publishedYes

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