Crystal structure of the mononuclear complex [Mn(mesalim)2Cl] and electrochemical studies of manganese complexes of the ligand Hmesalim

The complex [Mn(mesalim)2Cl] (1), (Hmesalim = methyl salicylimidate) has been synthesized and fully characterized. The manganese(III) complex is formed by the reaction of the ligand Hmesalim with manganese(II) chloride. Complex 1 is mononuclear and crystallizes in the space group View the MathML sourceP1¯. Electrochemical studies were performed for complex 1, as well as for the related complexes [Mn(mesalim)2(OAc)(MeOH] · MeOH (2) and [Mn2(etsalim)4(Hetsalim)2](ClO4)2 (3), (Hetsalim = ethyl salicylimidate). The complexes display intricate oxidation–reduction behaviour, and coulometric analyses in combination with electrochemical analyses have been used to understand the electron transfer mechanisms occurring at the electrodes.