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Diaqua-bis(N,N-diethyl-nicotinamide-?N)bis-[4-(dimethyl-amino)benzoato-?O]nickel(II).

ABSTRACT: The centrosymmetric title Ni(II) complex, [Ni(C(9)H(10)NO(2))(2)(C(10)H(14)N(2)O)(2)(H(2)O)(2)], contains two dimethyl-amino-benzoate (DMAB), two diethyl-nicotinamide (DENA) ligands and two water mol-ecules, all of them monodentate. The four O atoms in the equatorial plane around the Ni(II) atom form a slightly distorted square-planar arrangement, while the slightly distorted octa-hedral coordination is completed by the two pyridine N atoms of the DENA ligands in axial positions. The Ni(II) atom is displaced by 0.681?(1)?Å out of the least-squares plane of the carboxyl-ate group. The dihedral angle between the carboxyl-ate group and the adjacent benzene ring is 5.61?(7)°, while the pyridine and benzene rings are oriented at a dihedral angle of 73.20?(4)°. An intra-molecular O-H?O hydrogen bond results in the formation of a six-membered ring with a twisted conformation. In the crystal structure, inter-molecular O-H?O and C-H?O hydrogen bonds link mol-ecules into a three-dimensional network. Two weak C-H?? inter-actions are also present.

SUBMITTER: Hokelek T

PROVIDER: S-EPMC2977174 | BioStudies | 2009-01-01T00:00:00Z

REPOSITORIES: biostudies

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Crystal structure of trans-di-aqua-bis-(4-cyano-benzoato-?O)bis-(N,N-di-ethyl-nicotinamide-?N)cadmium.

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