Acta Cryst. (2009). E65, m1507-m1508  [ doi:10.1107/S1600536809045565 ]

Di--chlorido-bis(chlorido{2,2'-[3-(1H-imidazol-4-ylmethyl)-3-azapentane-1,5-diyl]diphthalimide}copper(II))

Z.-P. Qi, A.-D. Wang, H. Zhang and X.-X. Wang

Abstract: The centrosymmetric dinuclear Cu^II complex, [Cu₂Cl₄(C₂₄H₂₁N₅O₄)₂], was synthesized by the reaction of CuCl₂·2H₂O with the tripodal ligand 2,2'-[3-(1H-imidazol-4-ylmethyl)-3-azapentane-1,5-diyl]diphthalimide (L). Each of the Cu^II ions is coordinated by two N atoms from the ligand, two bridging Cl atoms and one terminal Cl atom. The Cu^II coordination can be best be described as a transition state between four- and five-coordination, since one of the bridging Cl atoms has a much longer Cu-Cl bond distance [2.7069 (13) Å] than the other [2.2630 (12) Å]. In addition, the CuCu distance is 3.622 (1) Å. The three-dimensional structrure is generated by N-HO, C-HO and C-HCl hydrogen bonds and - interactions [centroid-centroid distances = 3.658 (4) and 4.020 (4) Å].

Online 4 November 2009

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