title: mer-Diaquabis(1H-imidazole-kappaN3)(orotato-kappa2N3,O4nickel(II).
abstract: The title mononuclear complex, [Ni(C(5)H(2)N(2)O(4))(C(3)H(4)N(2))(2)(H(2)O)(2)] or [Ni(HOr)(im)(2)(H(2)O)(2)] (im is imidazole and H(3)Or is orotic acid, or 2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid), has been synthesized and the crystal structure determination is reported. The Ni(II) ion in the complex has a distorted octahedral coordination geometry comprised of one deprotonated pyrimidine N atom and the adjacent carboxylate O atom of the orotate ligand, two tertiary imidazole N atoms and two aqua ligands. An extensive three-dimensional network of OW-H...O and N-H...O hydrogen bonds, and pi-pi and pi-ring interactions are responsible for crystal stabilization.
authors.affiliation: Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayis University, TR-55139 Kurupelit-Samsun, Turkey. iucar@omu.edu.tr
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Uçar
authors.forename: Ahmet
authors.initials: A
authors.lastname: Bulut
authors.forename: Okan Zafer
authors.initials: OZ
authors.lastname: Yeşilel
authors.forename: Halis
authors.initials: H
authors.lastname: Olmez
authors.forename: Orhan
authors.initials: O
authors.lastname: Büyükgüngör