Received 25 February 2011
The Cu(II) atom in the title complex, [Cu(C14H11O3)Cl(C10H8N2)], exists within a ClN2O2 donor set defined by a chloride ion, an asymmetrically chelating carboxylate ligand, and a symmetrically chelating 2,2'-bipyridine molecule. The coordination geometry is square pyramidal with the axial site occupied by the O atom forming the weaker Cu-O interaction. The hydroxy group forms an intramolecular hydrogen bond with the axial O atom, as well as an intermolecular O-HCl hydrogen bond. The latter leads to the formation of  supramolecular chains in the crystal, with the Cu(II) atoms lying in a line.
For recent structural studies on metal complexes of anions derived from benzilic acid, see: Yang et al. (2010); Reza et al. (2010). For additional structural analysis, see: Addison et al. (1984); Spek (2009).
Data collection: CrysAlis PRO (Agilent, 2010); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB5805 ).
MYR, LAB and MSI thank Dr T. G. Roy for special assistance. The authors also thank Rajshahi University for the provision of their central laboratory facilities and the University of Malaya for support of the crystallographic facility.
Addison, A. W., Rao, T. N., Reedijk, J., van Rijn, J. & Verschoor, G. C. (1984). J. Chem. Soc. Dalton Trans. pp. 1349-1356.
Agilent (2010). CrysAlis PRO. Agilent Technologies, Yarnton, England.
Brandenburg, K. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany.
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.
Reza, Md. Y., Hossain, Md. M., Karim, Md. R., Tarafder, Md. T. H. & Hughes, D. L. (2010). Acta Cryst. E66, m116-m117.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920-925.
Yang, X.-X., Zhang, F.-Y. & Xu, S.-H. (2010). Acta Cryst. E66, m69.