Redox Properties of CU(I) Camphor Hydrazone Complexes

Abstract

The electrochemical properties of the one-dimensional coordination polymers [{CuX} 2 (YNC 10 H 14 O)] n (X=Cl: Y=NMe 2 1a, Y=NHMe 1b, Y=NH 2 1c; X=Br: Y=NH 2 2c) and dimers [{Cu(YNC 10 H 14 O)} 2 (µ-X) 2 ] (X=Cl: Y=NMe 2 3a; Y=NHMe 3b; X=Br: Y=NMe 2 4a; Y=NHMe 4b) were studied by cyclic voltammetry (CV) and controlled potential electrolysis (CPE). All complexes display anodic and cathodic processes. The anodic processes involve the oxidation of the metal site (Cu(I) Cu(II)), while the cathodic processes are based on the ligand. The substituent (Y) at the camphor hydrazones (YNC 10 H 14 O) plays a relevant role in the electrochemical properties and reactivity of Cu(I) coordination polymers and Cu(I) dimmers, as corroborated by CPE.