Research Article: Tetra­aqua­bis(orotato-κO)cobalt(II) dihydrate

Date Published: June 01, 2010

Publisher: International Union of Crystallography

Author(s): Ahmet Nedim Ay, Dursun Ali Köse, Barış Tercan, Fatma Yüksel, Tuncer Hökelek.

http://doi.org/10.1107/S1600536810015837

Abstract

In the title CoII complex, [Co(C5H3N2O4)2(H2O)4]·2H2O, the CoII 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 mol­ecules in a slightly distorted octa­hedral geometry. The dihedral angle between the carboxyl­ate group and the attached orotate ring is 1.2 (3)°. In the crystal structure, inter­molecular O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds link the mol­ecules 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.

Partial Text

For orotic acid, see: Doody et al. (1996 ▶); Köse et al. (2008 ▶); Levine et al. (1974 ▶); Nelson & Michael (2000 ▶); Smith & Baker (1959 ▶). For applications of metal–orotate complexes and their derivatives, see: Schmidbaur et al. (1990 ▶); Castan et al. (1990 ▶); Köse et al. (2006 ▶). For related structures, see: Ha et al. (1999 ▶); Icbudak et al. (2003 ▶); Karipides & Thomas (1986 ▶); Kumberger et al. (1991 ▶); Mutikainen (1987 ▶); Mutikainen et al. (1996 ▶); Nepveu et al. (1995 ▶); Platter et al. (2002 ▶); Sabat et al. (1980 ▶); Solbakk (1971 ▶); Sun et al. (2002 ▶).

 

Source:

http://doi.org/10.1107/S1600536810015837

 

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