title: (2-Amino-pyrimidine-κN)diaqua(pyridine-2,6-dicarboxyl-ato-κO,N,O)-nickel(II) monohydrate.
abstract: The reaction of Ni(NO(3))(2)·6H(2)O with pyridine-2,6-dicarboxylic acid, NaOH and 2-amino-pyrimidine in aqueous solution leads to the formation of the title complex, [Ni(C(7)H(3)NO(4))(C(4)H(5)N(3))(H(2)O)(2)]·H(2)O. The Ni(II) ion is coordinated by one N and two O atoms of the tridentate chelating pyridine-2,6-dicarboxyl-ate anion, one heterocyclic N atom of the 2-amino-pyrimidine ligand, and two water mol-ecules. The resulting geometry for the [NiN(2)O(4)] coordination environment can be described as distorted octa-hedral. One uncoord-inated water mol-ecule completes the asymmetric unit. Extensive O-H⋯O and N-H⋯O hydrogen-bonding inter-actions between the NH(2) group of 2-amino-pyrimidine, carboxyl-ate groups, and coordinated and uncoordinated water mol-ecules contribute to the formation of a three-dimensional supra-molecular structure.
authors.affiliation: Department of Chemistry, Islamic Azad University, Yazd Branch, Yazd, Iran.
authors.forename: Masoumeh
authors.initials: M
authors.lastname: Tabatabaee