Acta Cryst. (2010). E66, m1201-m1202  [ doi:10.1107/S1600536810034513 ]

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

M. Bartholomä, H. Cheung, K. Darling and J. Zubieta

Abstract: In the title dinuclear copper complex, [Cu₂Cl₄(C₂₉H₃₄N₆)]·1.5H₂O, both Cu^II 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-HO and O-HCl hydrogen bonds into chains along [001]. One of the water molecules was refined with half occupancy.

Online 4 September 2010

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