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Abstract
The binuclear copper(II) complex [Cu2(dien)2(NCS)2](ClO4)2, where dien = diethylenetriamine, has been synthesized and characterized by analysis, infrared (IR) and electron paramagnetic resonance (EPR) spectra. A centrosymmetric axial‐equatorial 1,3-μ-NCS bridged binuclear copper(II) complex has been identified by X-ray diffraction, in which each copper(II) is five-coordinated with an elongated square pyramidal geometry with four nitrogen atoms on its basal plane and one sulfur atom at the apical position. Frozen solution EPR spectra at 77 K indicate that the interaction between the two copper centers is weak and the bridge is retained in solution.
