Related Experiment Videos
[Malonato(2-)-κO,O']bis-(1,10-phenanthroline-κN,N')zinc(II) penta-hydrate
1Department of Chemistry and Science of Life, Quanzhou Normal University, Fujian 362000, People's Republic of China.
Abstract:
In the title complex, [Zn(C(3)H(2)O(4))(C(12)H(8)N(2))(2)]·5H(2)O, the Zn(II) cation displays a distorted octa-hedral geometry, being coordinated by four N atoms from two 1,10-phenanthroline ligands and two O atoms from different carboxyl-ate groups of the chelating malonate dianion. In the crystal, the complexes are linked into a three-dimensional supra-molecular network by both O-H⋯O hydrogen-bonding inter-actions between water mol-ecules and the uncoordinated carboxyl-ate O atoms of neighboring mol-ecules, and aromatic π-π stacking inter-actions between neighboring phenanthroline rings with centroid-centroid distances of 3.4654 (17) and 3.697 (2) Å.
Related Concept Videos
Complexometric Titration: Ligands
Ladder Diagrams: Complexation Equilibria
The formation constant, K1, for the formation of Cd(NH3)2+ complex from cadmium and ammonia is 3.55 × 102. Log K1 (i.e. pNH3) is 2.55, and...
Metal-Ligand Bonds
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
Coordination Number and Geometry
Coordination Compounds and Nomenclature
Acidity and Basicity of Alcohols and Phenols