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Bis(3-amino-pyrazine-2-carboxyl-ato-κ(2) N (1),O)di-aqua-nickel(II) dihydrate

, : Bis(3-amino-pyrazine-2-carboxyl-ato-κ(2) N (1),O)di-aqua-nickel(II) dihydrate. Acta Crystallographica. Section E, Structure Reports Online 69(Pt 6): M309-M310

In the title compound, [Ni(C5H4N3O2)2(H2O)2]·2H2O, the Ni(II) ion lies on an inversion center and is coordinated in an slightly distorted octa-hedral environment by two N,O-chelating 3-amino-pyrazine-2-carboxyl-ate (APZC) ligands in the equatorial plane and two trans-axial aqua ligands. In the crystal, O-H⋯O, N-H⋯O and O-H⋯N hydrogen bonds involving the solvent water mol-ecules, aqua and APZC ligands form layers parallel to (010). These layers are linked further via O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds involving the axial aqua ligands, amino groups and the carboxyl-ate groups of the APZC ligands, forming a three-dimensional network.


PMID: 23794977

DOI: 10.1107/S1600536813012208

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