title: trans-Diaqua-bis[5-carb-oxy-4-carboxyl-ato-2-(4-pyridinio)-1H-imidazol-1-ido-κN,O]iron(II).
abstract: In the title complex, [Fe(C(10)H(6)N(3)O(4))(2)(H(2)O)(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 H(2)PIDC(-) ligands and two water mol-ecules in a distorted environment. In the crystal packing, a three-dimensional network is constructed via hydrogen-bonding involving the water mol-ecules, uncoordinated imidazole N atom, protonated pyridine N and carboxyl-ate O atoms.
authors.forename: Xia
authors.initials: X
authors.lastname: Li
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.forename: Ben-Lai
authors.initials: BL
authors.lastname: Wu
authors.forename: Hong-Yun
authors.initials: HY
authors.lastname: Zhang