Structural Elucidation and Electrochemiluminescence on a 3D Cadmium(II) MOF with 5-c Topology

Abstract

A novel cadmium(II) based MOF, [Cd(μ–ppza)]n (1) (H2ppza = 3–(pyridin–4–yl)–1H–pyrazole–5–carboxylic acid) was synthesized under solvothermal condition. The single-crystal X-ray diffraction reveals that the title MOF 1 crystallizes in the triclinic system with the P–1 space group, and each Cd(II) is coordinated with five (Hppza)2− ions forming a distorted octahedron. The carboxylic group in the ligand acts as a bridge linking the Cd(II) ions into a 3D structure. MOF 1 has a 5-c {46.64} topological structure. Furthermore, MOF 1 exhibits good electrochemiluminescence (ECL) behavior.