Acta Cryst. (2005). E61, m1595-m1597  [ doi:10.1107/S1600536805022233 ]

Bis[2-(benzimidazol-2-yl)phenolato-²N,O]zinc(II)-bis[5-amino-2-(benzimidazol-2-yl)phenolato-²N,O]zinc(II)-ethanol-water (0.56/0.44/2/0.5)

Y.-P. Tong

Abstract: Reacting zinc(II) with 2-(2-hydroxyphenyl)benzimidazole, H(hpb), and 2-(4-amino-2-hydroxyphenyl)benzimidazole, H(apb), yields a cocrystalline mixture of Zn(hpb)₂ and Zn(apb)₂, complexes of the two deprotonated phenolate ligands. The ligands chelate to the Zn^II ions in a tetrahedral geometry and are statistically disordered with an occupancy ratio of 0.56 (1):0.44 (1). Ethanol and water molecules also cocrystallize in the crystal structure, with the O atom of the solvent water molecule located on a twofold axis, giving an overall formula [Zn(C₁₃H_9.44N_2.44O)₂]·2C₂H₆O·0.5H₂O. The neutral complexes are connected to one another by intermolecular hydrogen bonding interactions that extend into three-dimensional arrays.

Online 20 July 2005

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