Influence of the electrochemical conversion of [(LH)MnIICl2] into [(L)MnIIICl]+ on the protonic state of a phenol-containing ligand - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Inorganic Chemistry Année : 2006

Influence of the electrochemical conversion of [(LH)MnIICl2] into [(L)MnIIICl]+ on the protonic state of a phenol-containing ligand

Régis Guillot
Ally Aukauloo

Résumé

A bischloromanganese(ll) complex [(LH)MnCl2] (1), where LH is the pentadentate ligand N,N-bis(2-pyridylmethyl)-N'-salicylidene-ethane-1,2-diamine, has been synthesized. Elemental analysis, UV-visible, and cyclic voltammetry experiments showed that the phenol function of the ligand LH remains protonated. Exhaustive electrolysis at 1.0 V vs SCE led to the formation of the MnIII derivative [(L)Mncl]+ (3) with the concomitant expulsion of H+ and Cl-. The formation of the MnIII species was confirmed by UV-visible spectroscopy and X-ray crystallography. Complex 1 could be regenerated by the reduction of complex 3 in the presence of H+ and Cl-.

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Dates et versions

hal-00700076 , version 1 (22-05-2012)

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  • HAL Id : hal-00700076 , version 1

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Laurent Sabater, Christelle Hureau, Régis Guillot, Ally Aukauloo. Influence of the electrochemical conversion of [(LH)MnIICl2] into [(L)MnIIICl]+ on the protonic state of a phenol-containing ligand. Inorganic Chemistry, 2006, 45 (6), pp.2373-2375. ⟨hal-00700076⟩
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