摘要
The mononuclear [Cu II (HL) 2 ] (1) and dinuclear [Mn III 2 (μ 1,3 -OAc) 2 L 2 ] (2) [H 2 L = N-(2-hydroxypropyl)-3-methoxysalicylaldimine] compounds have been synthesized and characterized using microanalytical, spectroscopic and X-ray crystallographic results. Structural analysis reveals a bidentate chelation behavior of the monoanionic HL ligand, having a distorted square planar coordination environment around copper(II) with a CuN 2 O 2 chromophore. In compound 2, each manganese(III) center has a distorted octahedral geometry, with an MnN 2 O 4 chromophore bridged by two acetate ligands in a μ 1,3 fashion. Variable-temperature magnetic susceptibility measurements of 2 indicate an antiferromagnetic interaction between the two manganese(III) centers. Both 1 and 2 behave as effective catalysts towards the oxidation of 3,5-di-tert- butylcatechol to its corresponding quinone with molecular oxygen in methanolic solution. © 2013 Elsevier Ltd. All rights reserved.