A linear trinuclear cluster of the type [{Zn₃ (HTrz)₆ (H₂O)₆}⁶⁺ (NO$_{3}^{−}$)₆ (H₂O)] (ZnT) has been synthesized by one-pot reaction between 1,2,4-triazole and Zn(NO₃).6H₂O. Molecule consists of three Zn²⁺ ions linearly connected by 1,2,4-triazole with tri-fold symmetry. The coordination geometry around the zinc centre is octahedral with zinc-zinc separation of 3.810 Å. The coordination environment of central Zn²⁺ ion is satisfied by nitrogen atoms of six 1,2,4-triazoles, while the geometry of terminal Zn²⁺ ions is fulfilled by nitrogen atoms of three 1,2,4-triazoles and three water molecules. The thermal and absorption properties of ZnT have been reported for the first time.

The silver(I) and copper(II)-imidazolium carboxylate coordination assemblies were derived from the reaction between corresponding carboxylic acid ligands and metal salts. These new metal derivatives depict a novel structural motif with variable chemical and thermal properties. These metal complexes act as potentialcatalysts in Ullmann coupling reactions. The imidazolium linker present in these complexes plays a role as both ligand and counter ion to balance the metal charge.