Related Experiment Video
Updated: Jun 1, 2026

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
catena-Poly[[(4-formyl-benzoato-κO)(isonicotinamide-κN)zinc(II)]-μ-4-formyl-benzoato-κO:O]
Abstract:
In the title compound, [Zn(C(8)H(5)O(3))(2)(C(6)H(6)N(2)O)](n), the Zn(II) ion is tetrahedrally coordinated by two formyl-benzoate (FB) and one isonicotinamide (INA) ligands while symmetry-related FB ligands bridge adjacent Zn(II) ions, forming polymeric chains along the b axis. The carboxyl-ate groups in the two FB ions are twisted away from the attached benzene ring by 9.07 (2) and 26.2 (2)°. The two benzene rings of the FB ions are oriented at a dihedral angle of 81.30 (5)°. In the crystal, adjacent polymeric chains inter-act via N-H⋯O and C-H⋯O hydrogen bonds, π-π contacts between the formyl-benzoate rings [centroid-centroid distance = 3.7736 (8) Å] and weak C-H⋯π inter-actions, forming a three-dimensional network.
Related Concept Videos
Complexometric Titration: Ligands
Coordination Number and Geometry
Coordination Compounds and Nomenclature
EDTA: Auxiliary Complexing Reagents
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...
Complexometric Titration: Overview

