[μ-N,N,N′,N′-Tetrakis(2-pyridylmethyl)pentane-1,5-diamine]bis[dichloridocopper(II)] sesquihydrate

Abstract

In the title dinuclear copper complex, [Cu2Cl4(C29H34N6)]·1.5H2O, both CuII ions are coordinated in a slightly distorted square-pyramidal environment in which the N atoms of the dipicolylamine group and a chloride ligand form the basal plane. The apical position is occupied by a second chloride atom. The Cu—N distances involving the pyridine N atoms differ slightly from each other and the Cu—N distance involving the tertiary N atom is the longest. The apical Cu—Cl distance is elongated compared to its basal counterpart due to typical Jahn–Teller distortion. In the crystal structure, complex and water molecules are linked via intermolecular O—H...O and O—H...Cl hydrogen bonds into chains along [001]. One of the water molecules was refined with half occupancy.