Preparation and Crystal Structure of Zinc Bis[orotate(1–)] Octahydrate

Abstract

A discrete zinc bis[orotate(1—)] complex of the composition Zn(OrH) 2 ·8 H 2 O has been isolated and characterized by a single-crystal X-ray structure analysis. The crystals are monoclinic, space group P2 1 /c (No. 14), Z = 2, a = 10.884(2), b = 12.896(1), c = 6.954(1) Å, β = 98.27(1)°. The crystal lattice features hexaquo complexes of zinc, the Zn(H 2 O) 6 2+ cations being associated with two hydrated OrH - ions only through hydrogen bonds. The results are relevant for applications of zinc orotates in medical treatment.