Abstract
The reaction of 2-chlorophenylacetic acid with anhydrous copper(II) sulphate in the presence of pyridine resulted in the formation of [Cu2(2-ClC6H4CH2COO)4(Py)2] (1). The complex was characterized by FT-IR and X-ray single crystal analysis. The dinuclear copper(II) complex has shown a paddle wheel arrangement with four bridging carboxylate ligands around two copper centers. The axial positions around the paddle wheel copper centers are occupied by pyridine co-ligands. Variable-temperature magnetic susceptibility measurements established strong antiferromagnetic interactions in the complex and the J value between two copper atoms (JCu–Cu) was determined as −147.6 cm−1. The thermal degradation behavior of the complex was studied in the temperature range 30–1000 °C at different heating rates. The TG curves were subsequently used for the calculations of kinetic and thermodynamic parameters.
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