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Diiodine complex of diferrocenyl(phenyl)phosphine sulfide: the structural and electrochemical behaviour of Fc(2)(Ph)PS center dot I-2

Bricklebank, N. and Coles, S.J. and Forder, S.D. and Hursthouse, M.B. and Poulton, A. and Skabara, P.J. (2005) Diiodine complex of diferrocenyl(phenyl)phosphine sulfide: the structural and electrochemical behaviour of Fc(2)(Ph)PS center dot I-2. Journal of Organometallic Chemistry, 690 (2). pp. 328-332. ISSN 0022-328X

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Abstract

The title compound, Fc(2)(Ph)PS.I-2, has been prepared and characterised in both the solid state and solution. Single crystal X-ray crystallography reveals that the adduct adopts a molecular charge-transfer structure in the solid state. Mossbauer spectroscopy confirms the presence of low spin Fe2+ but also indicates the presence of ca. 24% of an Fe3+ species. The electrochemistry of Fc(2)(Ph)PS.I-2, Fc(2)(Ph)PS and Fc(2)(Ph)P has been studied using a combination of cyclic voltammetry and differential pulse voltammetry. The data for Fc(2)(Ph)PS.I-2, show two redox processes, consistent with the sequential oxidation of the ferrocenyl groups to ferrocenium species.