Article ID Journal Published Year Pages File Type
1407724 Journal of Molecular Structure 2006 5 Pages PDF
Abstract

The formation of bisorotate(1−) complexes of the type [M(C5H3N2O4)2(H2O)4]·nH2O (M=Co, Ni, Zn and n=2, 4) was achieved by the reaction of ammonium orotate with the corresponding M(II) ions. The crystal structure of [Co(C5H3N2O4)2(H2O)4]·2H2O was determined by single crystal X-ray diffraction analysis. Each Co(II) ion in the monomeric Co(C5H3N2O4)2(H2O)4 units adapts a slightly distorted octahedral geometry comprised of two monodentate orotate anions and four H2O ligands. Columnar packing of pyrimidine rings along the c axis leads to the formation of layers that propagate parallel to the b axis and the adjacent layers are linked by hydrogen bonds forming a 3D lattice. Complexes of nickel and zinc were assumed to contain monodentate bound orotate ligands as well on the basis of physical and spectroscopic data.

Related Topics
Physical Sciences and Engineering Chemistry Organic Chemistry
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