title: Tetra-aqua-bis(orotato-κO)cobalt(II) dihydrate.
abstract: In the title Co(II) complex, [Co(C(5)H(3)N(2)O(4))(2)(H(2)O)(4)]·2H(2)O, the Co(II) ion is located on an inversion center and is coordinated by two orotate (2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylate) anions and four water mol-ecules in a slightly distorted octa-hedral geometry. The dihedral angle between the carboxyl-ate group and the attached orotate ring is 1.2 (3)°. In the crystal structure, inter-molecular O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network. π-π contacts between the orotate rings [centroid-centroid distances = 3.439 (2) and 3.438 (2) Å] further stabilize the structure.
authors.forename: Ahmet Nedim
authors.initials: AN
authors.lastname: Ay
authors.forename: Dursun Ali
authors.initials: DA
authors.lastname: Köse
authors.forename: Barış
authors.initials: B
authors.lastname: Tercan
authors.forename: Fatma
authors.initials: F
authors.lastname: Yüksel
authors.forename: Tuncer
authors.initials: T
authors.lastname: Hökelek