Supramolecular Aggregate of Cadmium(II)-Based One-Dimensional Coordination Polymer for Device Fabrication and Sensor Application

A novel mixed ligand one-dimensional coordination polymer (1D CP), {[Cd₂(adc)₂(4-nvp)₆]·(MeOH)·(H₂O)} _n (1; H₂adc = 9,10-anthracenedicarboxylic acid, and 4-nvp = 4-(1-naphthylvinyl)pyridine), has been synthesized and structurally characterized by single crystal X-ray crystallography. The 1D polymer undergoes supramolecular aggregation via hydrogen bonding, C-H···π, and π···π interactions. Interestingly, compound 1 shows increasing conductivity upon irradiation of light. Therefore, it has the potential to be used in optoelectronic devices. Moreover, the supramolecular assembly of 1 specifically detects Cr³⁺ cation in the presence of other competitive analytes. Most importantly, compound 1 exhibits fascinating turn-on Cr³⁺ sensing, which seems to be an ornament in the field of sensing application.