Crystal structure of tetraaqua-bis(4-(1,2,4-triazol-4-yl)benzoato-κN) - zinc(II) decahydrate, C_(18)H_(40)N_6O_(18)Zn

摘要

(Equation presentation) (Table presentation) Source of material The title complex was prepared by reaction of an aqueous solution of Zn(NO_3)2.6H2O (0.297 g, 1 mmol) with 4-(p-benzoxy)- 1,2,4-triazole (HL) (0.378 g, 2 mmol) in 18 mL water. This suspending solution was rigidly stirred at room temperature for 5 h and then was filtrated. The clear solution was sealed in a 25 mL acid digestion bomb at 140 °C for 4 days. Colourless block crystals were obtained by filtration and dried in air. Discussion Metal-organic supermolecular compounds with various network structures have received wide attention because of their attractive structures and potential application in many research areas [1]. Herein, we employed 4-(p-benzoxy)-1,2,4-triazole (L) ligand to construct a new zinc complex [2]. The title structure consists of mononuclear [Zn(L)2(H2O)4] units and lattice water molecules in the ratio 1:10 as shown in the figure. The [Zn(L)2(H2O)4] unit has a crystallographically imposed C2 symmetry. The ligand adopts the unique Zn-N coordination fashion, in which the uncoordinated carboxylate groups exhibits strong intermolecular hdyrogen bonding interaction with water molecules. It is noteworth that the title compound self-assembles into a three-dimensional (3D) supramolecular architecture through intermolecular O-H...O hydrogen-bonding interactions. (Table presentation).