[μ-N,N,N′,N′-Tetrakis(2-pyridylmethyl)-butane-1,4-diamine] bis[dibromidocopper(II)]

The title dinuclear copper complex, [Cu₂Br₄(C ₂₈H₃₂N₆)], is located on an inversion center. The unique Cu^II ion is in a slightly distorted square-pyramidal environment in which the N atoms of a dipicolyl-amine group and a bromide ligand form the basal plane. The apical site is occupied by a second Br atom. While the Cu - N distances involving the pyridine N atoms are the same within experimental error, the Cu - N distance involving the tertiary N atom is slightly elongated. Due to the typical Jahn-Teller distortion of copper(II) complexes, the apical Cu - Br distance is elongated.