Synthesis of mixed-ligand copper(II) complexes containing bis(pyrazol-1-yl)methane ligands

Complexes of copper(II) nitrate and chloride with several bis(pyrazol-1-yl)methane derivatives have been prepared and characterized by spectroscopic (IR, UV–Vis) and electrochemical (solution conductivity measurements, cyclic voltammetry) techniques. The complexes react with bidentate (2,2′-bipyridyl and acetylacetone) and monodentate (triphenylphosphine, 1H-benzimidazole, 1H-benzotriazole, 3,5-dimethyl-1H-pyrazole) ligands forming mixed-ligand complexes.

Graphical abstractComplexes of copper(II) nitrate and chloride with several bis(pyrazol-1-yl)methane derivatives were prepared and characterized by spectroscopic and electrochemical techniques. The complexes obtained were reacted with bidentate (2,2′-bipyridyl and acetylacetone) and monodentate (triphenylphosphine, 1H-benzimidazole, 1H-benzotriazole, 3,5-dimethyl-1H-pyrazole) ligands forming mixed-ligand complexes.Figure optionsDownload full-size imageDownload as PowerPoint slide