A copper(II)-based metal-organic framework: electrochemical sensing of Cd(II) and Pb(II) and adsorption of organic dyes.

A new inorganic-organic hybrid complex, namely [CuL(DMF)]·HO (Cu-L), has been synthesized using a sulfur-rich ligand, 3,3',3''-(1,3,5-triazine-2,4,6-triyltrisulfanediyl)tripropanoic acid (HL) and metal cations under hydrothermal conditions. The metal atoms are interconnected to form a paddle-wheel-like structure, which is ultimately linked to the ligands to create a three-dimensional architecture. Cu-L, employed to fabricate an electrochemical sensor denoted as Cu-L@GCE (glassy carbon electrode), is capable of simultaneously detecting Cd and Pb at approximately -0.