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Diaqua-bis(4-methyl-amino-benzoato-?O)bis-(nicotinamide-?N)nickel(II).

ABSTRACT: The title Ni(II) complex, [Ni(C(8)H(8)NO(2))(2)(C(6)H(6)N(2)O)(2)(H(2)O)(2)], is centrosymmetric with the Ni atom on an inversion center. The mol-ecule contains two 4-methyl-amino-benzoate (MAB) and two nicotinamide (NA) ligands and two coordinated water mol-ecules, all ligands being monodentate. The four O atoms in the equatorial plane around the Ni atom form a slightly distorted square-planar arrangement, while the slightly distorted octa-hedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxyl-ate group and the adjacent benzene ring is 2.09?(14)°, while the pyridine and benzene rings are oriented at a dihedral angle of 66.15?(4)°. In the crystal structure, inter-molecular O-H?O and N-H?O hydrogen bonds link the mol-ecules into a three-dimensional network.

SUBMITTER: Hokelek T

PROVIDER: S-EPMC2977638 | biostudies-literature | 2009

REPOSITORIES: biostudies-literature

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Diaqua-bis(4-methyl-amino-benzoato-κO)bis-(nicotinamide-κN)nickel(II).

Hökelek Tuncer T Dal Hakan H Tercan Barış B Aybirdi Ozgür O Necefoğlu Hacali H

Acta crystallographica. Section E, Structure reports online 20090430 Pt 5

The title Ni(II) complex, [Ni(C(8)H(8)NO(2))(2)(C(6)H(6)N(2)O)(2)(H(2)O)(2)], is centrosymmetric with the Ni atom on an inversion center. The mol-ecule contains two 4-methyl-amino-benzoate (MAB) and two nicotinamide (NA) ligands and two coordinated water mol-ecules, all ligands being monodentate. The four O atoms in the equatorial plane around the Ni atom form a slightly distorted square-planar arrangement, while the slightly distorted octa-hedral coordination is completed by the two N atoms of ...[more]

PMID: 21583824

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