A tetrazolate-based coordination complex with novel 3D structure and catalytic property

Hydrothermal reaction of 5-(4-nitrophenyl)-2H-tetrazole [H(4-nptz)] and CuCl generates a novel complex Cu(4-nptz). In complex (1), the tetrahedral Cu(I) cations are linked by μ4-4-nptz ligands into a 4-connected 3D framework with sra topology. Complex (1) represents the first 3D structure constructed by 4-nptz ligand, and it is insolvable in all solutions and stable in room temperature. However, it will explode when the temperature is higher than 360 °C. UV–vis diffuse reflectance spectroscopy (DRS) of complex (1) exhibits a strong absorption band in the visible light region around 750 nm. In addition, complex (1) exhibits catalytic property to the hydrolysis of ester.