Received 25 February 2013
The reaction of 4-chloro-2-(quinolin-8-yliminomethyl)phenol (HClQP) with cobalt(II) dichloride hexahydrate in methanol/chloroform under solvothermal conditions yielded the title compound, [Co(C16H10ClN2O)2][CoCl3(CH3OH)]. The CoIII atom is six-coordinated in a slightly distorted octahedral geometry by four N atoms and two O atoms of two tridentate HClQP ligands, which are nearly perpendicular to each other, making a dihedral angle of 86.95°. The CoII atom is four-coordinated by three Cl atoms and one O atom from a methanol ligand in a distorted tetrahedral geometry. The crystal packing is consolidated by intermolecular O-HCl, C-HCl and C-HO hydrogen bonds, forming a three-dimensional supramolecular structure, in which [CoIICl3(CH3OH)] anions are connected via O-HCl and C-HCl hydrogen bonds into centrosymmetric dimers. Neighboring cobalt(III) complexes form dimers through C-HO hydrogen bonds, as well as - stacking [centroid-centroid distances = 3.30 (2) Å] between the planar quinoline systems of one HClQP ligand and the phenolate ring of another.
For the synthesis and analysis of the HClQP ligand, see: Donia & El-Boraey (1993), Sirirak et al. (2013). For related crystal structures of metal complexes of HClQP, see: Vasil'chenko et al. (1999); Neves et al. (2009). For applications of metal complexes of Schiff bases and their biological activity, catalytic reactions and photoelectric properties, see: Wu et al. (2009); Zhuang et al. (2010); Leung et al. (2011).
Data collection: CrysAlis PRO (Agilent, 2011); 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: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: ZL2537 ).
The authors thank the Small Highland Project for the Talents of the Medicinal Industry of Guangxi Province (No. 1108) and the Foundation of the State Key Laboratory Cultivation Base for Chemistry and Molecular Engineering of Medicinal Resources (CMEMR2012-A11). We also thank Dr Fu-Ping Huang for assistance with the crystallography.
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