ELECTROCHEMICAL SYNTHESIS OF MANGANESE(II) AND (III) COMPLEXES DERIVED FROM SALICYLALDEHYDE AND 2-(2-AMINOETHYL)PYRIDINE

A series of manganese(II) and (III) complexes of tridentate NN'O donor set Schiff base ligands has been prepared by the electrochemical oxid ation of a manganese anode in an acetonitrile solution of the Schiff b ases (R-salaepH). These complexes are found to be of the form [Mn(R-sa laep)(2)] and [Mn(R-salaep)(2)]ClO4. The single crystal X-ray structur e of l)ethyl]-iminomethyl-5-nitro-phenoxy}manganese(II) was determined . In dichloromethane solution with 0.2 M Bu(4)NPF(6) as supporting ele ctrolyte the one-electron oxidation of the manganese(II) complexes, [M n(R-salaep)(2)], yields their related manganese(III) complexes [Mn(R-s alaep)(2)]PF6. Copyright (C) 1996 Elsevier Science Ltd