Acta Cryst. (2009). E65, m820-m821  [ doi:10.1107/S160053680902337X ]

trans-Diaquabis[5-carboxy-4-carboxylato-2-(4-pyridinio)-1H-imidazol-1-ido-²N³,O⁴]iron(II)

X. Li, W. Liu, B.-L. Wu and H.-Y. Zhang

Abstract: In the title complex, [Fe(C₁₀H₆N₃O₄)₂(H₂O)₂], the Fe^II atom is located on a twofold rotation axis and is coordinated by two trans-positioned N,O-bidentate and zwitterionic 5-carboxy-2-(pyridinium-4-yl)-1H-imidazol-1-ide-4-carboxylate H₂PIDC^- ligands and two water molecules in a distorted environment. In the crystal packing, a three-dimensional network is constructed via hydrogen-bonding involving the water molecules, uncoordinated imidazole N atom, protonated pyridine N and carboxylate O atoms.

Online 24 June 2009

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