Related Experiment Video
Updated: Jun 1, 2026

Thermochemical Studies of Ni(II) and Zn(II) Ternary Complexes Using Ion Mobility-Mass Spectrometry
Published on: June 8, 2022
Aqua-bis(2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato)zinc(II) monohydrate
Yu-Feng Wei1, Zhong-Shu Li, Huai-Hong Zhang
1Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
Abstract:
The crystal structure of the title compound, [Zn(C(9)H(7)N(2)O(2))(2)(H(2)O)]·H(2)O, involves discrete mononuclear complex mol-ecules. The special positions on the rotation twofold axis are occupied by Zn(II) and O atoms of the coordinated and uncoordinated water mol-ecules. The coordination around the Zn(II) atom can be described as transitional from trigonal-bipyramidal to square-pyramidal. The two chelating 2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olate ligands and the coordin-ated water mol-ecule form the Zn coordination. O-H⋯O hydrogen bonds between the coordinated water mol-ecule and the ligand and between the uncoordinated water mol-ecule and the ligand dominate the crystal packing.
Related Concept Videos
EDTA: Auxiliary Complexing Reagents
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
Diazonium Group Substitution: –OH and –H
Coordination Compounds and Nomenclature
EDTA: Chemistry and Properties
Coordination Number and Geometry

