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Bis(6'-carb-oxy-2,2'-bipyridine-6-carboxyl-ato-?N,N',O)nickel(II) tetra-hydrate.

ABSTRACT: In the title compound, [Ni(C(12)H(7)N(2)O(4))(2)]·4H(2)O, the Ni atom is located at the centre of a distorted octa-hedron, formed by four N atoms and two O atoms from the same two tridentating chelated 6-carb-oxy-2,2'-bipyridine-6'-carboxyl-ate (L) ligands. Face-to-face ?-stacking inter-actions between inversion-related pyridine rings with centroid-centroid distances of 3.548?(3) and 3.662?(3)?Å (perpendicular distances between the respective rings are 3.314 and 3.438?Å) are found. Inter-molecular O-H?O hydrogen bonds between water mol-ecules and L ligands form R(5) (3)(10), R(6) (5)(14) and R(5) (5)(12) rings and also a centrosymmetric cage-like unit of water mol-ecules, which link eight adjacent Ni(II) centers, forming a three-dimensional framework.

SUBMITTER: Wang H 

PROVIDER: S-EPMC2968579 | biostudies-literature | 2009 Feb

REPOSITORIES: biostudies-literature

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Bis(6'-carb-oxy-2,2'-bipyridine-6-carboxyl-ato-κN,N',O)nickel(II) tetra-hydrate.

Wang Huimin H   Su Haiquan H   Xu Jinjin J   Bai Fenghua F   Gao Ya Y  

Acta crystallographica. Section E, Structure reports online 20090228 Pt 3

In the title compound, [Ni(C(12)H(7)N(2)O(4))(2)]·4H(2)O, the Ni atom is located at the centre of a distorted octa-hedron, formed by four N atoms and two O atoms from the same two tridentating chelated 6-carb-oxy-2,2'-bipyridine-6'-carboxyl-ate (L) ligands. Face-to-face π-stacking inter-actions between inversion-related pyridine rings with centroid-centroid distances of 3.548 (3) and 3.662 (3) Å (perpendicular distances between the respective rings are 3.314 and 3.438 Å) are found. Inter-molecul  ...[more]

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