title: Poly[iron(II)-di-mu-imidazole-4,5-dicarboxylato-kappa3N3,O4:O5].
abstract: In the title compound, [Fe(C(5)H(3)N(2)O(4))(2)](n), each Fe atom lies on a centre of symmetry, in an octahedral coordination environment consisting of two chelate rings [Fe-N = 2.154 (3) A and Fe-O = 2.180 (3) A] and two carboxylate O atoms [Fe-O = 2.111 (2) A] from imidazole-4,5-dicarboxylate ligands. Extensive hydrogen-bonding interactions exist between layers constructed of Fe(4) squares, forming tunnels along the a axis with large voids.
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Fuzhou, Fujian 350002, People's Republic of China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Xu
authors.forename: Rui Hu
authors.initials: RH
authors.lastname: Wang
authors.forename: Ben Yong
authors.initials: BY
authors.lastname: Lou
authors.forename: Lei
authors.initials: L
authors.lastname: Han
authors.forename: Mao Chun
authors.initials: MC
authors.lastname: Hong