[2-(Imidazol-4-yl)ethylamine]-([2-(imidazol-4-yl)ethyl][(1-methyl-imidazol-2-yl)methyl]amine)copper(II) diperchlorate

In the title mononuclear complex, [Cu(C(5)H(9)N(3))(C(10)H(15)N(5))](ClO(4))(2), the Cu(II) centre is surrounded by two N-donor ligands, which impose a square-pyramidal environment on the metal. The new tridentate ligand [2-(imidazol-4-yl)ethyl][(1-methylimidazol-2-yl)methyl]amine (HISMIMA) lies in the basal plane, while the histamine ligand occupies the apical and one of the basal positions around the Cu(II) ion.