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Updated: Jun 1, 2026

Synthesis of Triazole and Tetrazole-Functionalized Zr-Based Metal-Organic Frameworks Through Post-Synthetic Ligand Exchange
Published on: June 23, 2023
Dibromido(2,2':6',2''-terpyridine-κN,N',N'')zinc(II)
Abstract:
In the title compound, [ZnBr(2)(C(15)H(11)N(3))], the Zn(II) ion is five-coordinated by the three N atoms from a 2,2':6',2''-terpyridine ligand (terpy) and two bromide anions in a distorted trigonal bipyramidal configuration. Each mol-ecule is situated on a twofold rotational axis that passes through the Zn(II) ion and the central ring of the terpy ligand. In the crystal structure, aromatic π-π inter-actions between terpy ligands [centroid-centroid distances = 3.6265 (9) Å] link mol-ecules into stacks propagated in the [001] direction.
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Structural Isomerism
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
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

