The first structural determination of a copper (II) complex containing the ligand [1-(4-((1H-benzo[d][1,2,3]triazol-2(3H)-yl)methyl)benzyl)-1H-benzo[d][1,2,3]triazole]

The reaction of the ligand [1-(4-((1H-benzo[d][1,2,3]triazol-2(3H)-yl)methyl)benzyl)-1H-benzo[d][1,2,3]triazole] (L) with CuCl2 in acetonitrile yields a dinuclear copper(II) complex [Cu2Cl4L2]·2CH3CN (1·2CH3CN), which has been characterized by elemental analysis, powder and single crystal X-ray diffraction, thermal gravimetric analysis as well as IR, UV–Vis and EPR spectroscopy The crystal structure reveals that the metal coordination geometry is best described as square planar.

Graphical abstractThe reaction of the ligand [1-(4-((1H-benzo[d][1,2,3]triazol-2(3H)-yl)methyl)benzyl)-1H-benzo[d][1,2,3]triazole] (L) with CuCl2 in acetonitrile yields a dinuclear copper (II) complex [Cu2Cl4L2]·2CH3CN (1·2CH3CN), which has been characterized by elemental analysis, powder and single crystal X-ray diffraction, thermal gravimetric analysis as well as IR, UV–Vis and EPR spectroscopy.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► [1-(4-((1H-benzo[d][1,2,3]triazol-2(3H)-yl)methyl)benzyl)-1H-benzo[d][1,2,3]triazole]. ► Copper(II) complex. ► X-ray diffraction. ► EPR spectroscopy.