Poly[tetra-deca-aqua-tetra-kis-(μ(3)-1H-imidazole-4,5-dicarboxyl-ato)tetra-μ(3)-sulfato-cobalt(II)hexa-gadolinium(III)].

ABSTRACT: The asymmetric unit of the title compound, [CoGd(6)(C(5)H(2)N(2)O(4))(4)(SO(4))(6)(H(2)O)(14)](n), contains a Co(II) ion (site symmetry [Formula: see text]), three Gd(III) ions, two imidazole-4,5-dicarboxyl-ate ligands, three SO(4) (2-) anions, and seven coordinated water mol-ecules. The Co(II) ion is six-coordinated by two O atoms from water mol-ecules, two O atoms and two N atoms from two imidazole-4,5-dicarboxyl-ate ligands, giving a slightly distorted octa-hedral geometry. The Gd(III) ions exhibit three types of coordination environments. One Gd ion is eight-coordinated in a bicapped trigonal-prismatic geometry by four O atoms from two imidazole-4,5-dicarboxyl-ate ligands, two O atoms from two SO(4) (2-) anions and two coordinated water mol-ecules. The other Gd ions are nine-coordinate

SUBMITTER: Zhu LC 

PROVIDER: S-EPMC3212143 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature