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?-Biphenyl-3,3',4,4'-tetra-carboxyl-ato-?O:O-bis-[triaqua-(2,2'-bipyridyl-?N,N')nickel(II)] hexa-hydrate.

ABSTRACT: The asymmetric unit of the title complex, [Ni(2)(C(16)H(6)O(8))(C(10)H(8)N(2))(2)(H(2)O)(6)]·6H(2)O, contains one Ni(II) atom, one 2,2'-bipyridine ligand, three coordinated water mol-ecules, one-half of a fully deprotonated biphenyl-3,3',4,4'-tetra-carboxyl-ate anion and three lattice water mol-ecules. The Ni(II) atom displays a distorted NiN(2)O(4) octa-hedral coordination formed by one carboxyl-ate O atom, three water O atoms and two N atoms of the chelating ligand. The complete biphenyl-3,3',4,4'-tetra-carboxyl-ate ligand displays inversion symmetry and links two symmetry-related Ni(II) atoms into a binuclear complex. Neighbouring complex mol-ecules are linked through O-H?O hydrogen bonds into a three-dimensional structure. Additional O-H?O hydrogen bonds between the lattice water mol-ecules help to consolidate the crystal packing.

SUBMITTER: Zhou D 

PROVIDER: S-EPMC2977608 | biostudies-literature | 2009 Apr

REPOSITORIES: biostudies-literature

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μ-Biphenyl-3,3',4,4'-tetra-carboxyl-ato-κO:O-bis-[triaqua-(2,2'-bipyridyl-κN,N')nickel(II)] hexa-hydrate.

Zhou Dong D   Shao Min M   He Xiang X   Zhao Yongmei Y   Zhu Shourong S  

Acta crystallographica. Section E, Structure reports online 20090425 Pt 5

The asymmetric unit of the title complex, [Ni(2)(C(16)H(6)O(8))(C(10)H(8)N(2))(2)(H(2)O)(6)]·6H(2)O, contains one Ni(II) atom, one 2,2'-bipyridine ligand, three coordinated water mol-ecules, one-half of a fully deprotonated biphenyl-3,3',4,4'-tetra-carboxyl-ate anion and three lattice water mol-ecules. The Ni(II) atom displays a distorted NiN(2)O(4) octa-hedral coordination formed by one carboxyl-ate O atom, three water O atoms and two N atoms of the chelating ligand. The complete biphenyl-3,3',  ...[more]

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