volume 63, issue 12, Pm2921-m2921 2007
DOI: 10.1107/s1600536807055468
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Abstract: The asymmetric unit of the title compound, (C4H12N2)[Fe(C7H3NO4)2]2·H2O or (pipzH2)2+·2[Fe(pydc)2]−·H2O (pipz is piperazine and pydcH2 is pyridine‐2,6‐dicarboxylic acid), contains one dication, two anions and one uncoordinated water molecule. In the anions, each FeIII ion is hexacoordinated by four O [Fe—O = 2.005 (2)–2.044 (2) Å] and two N [Fe—N = 2.050 (2)–2.075 (2) Å] atoms in a distorted octahedral geometry. An extensive three‐dimensional network formed by classical O—H...O and N—H...O and weak C—H...O in…

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