Acta Cryst. (2008). E64, m308  [ doi:10.1107/S160053680706833X ]

Diaquabis(2,2'-biimidazole)cobalt(II) dichloride

L.-C. Zhang, Z.-M. Zhu, W.-S. You, S. Chang and E.-B. Wang

Abstract: There are independent cations and four chloride anions in the crystal structure of the title complex, [Co(C₆H₆N₄)₂(H₂O)₂]Cl₂. In each cation, the Co^II cation is coordinated by four N atoms from two biimidazole and two O atoms of two water molecules; one Co atom is at a position of site symmetry m, the other at a position of site symmetry 2/m. All Cl^- ions and water molecules are also located on the mirror plane. Each structural unit is connected through O-HCl and N-HCl intermolecular hydrogen bonds, forming a three-dimensional supramolecular structure.

Online 9 January 2008

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