Additive Tuning of Redox Potential in Metallacarboranes by Sequential Halogen Substitution

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Author/s: P. González-Cardoso, A.-I. Stoica, P. Farràs, A. Pepiol, C. Viñas, F. Teixidor

Reference: Chemistry – A European Journal, 2010, 16 (22), 6660-6665.  

Abstract:

Tuning Redox Potentials: The first artificially made set of electron acceptors derived from a unique platform Cs[3,3′-Co(C2B9H11)2] each differing from the predecessor a fix potential is presented. The sequence of electron acceptors is made by substituting one, two or more hydrogen atoms by chlorine atoms. The higher the number of chlorine substituents, the more prone the platform is to be reduced. The effect is additive so that each substitution implies in average 0.1 V anodic shift.

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