Synthesis, Characterization and Efficient Detection of Antibiotics of Two CdII-Based Coordination Polymers.

In this work, two Cd^II-based coordination polymers, namely [Cd₄(HL)₂(H₂O)₅]_n (1), and {[Cd₂(HL)(2,2′-bpy)₂(H₂O)]·6H₂O}_n (2) (2,2′-bpy = 2,2′-bipyridine) have been designed and synthesized using 2,3-bis(3,5-dicarboxylphenxoy)benzoic acid (H₅L). Coordination polymer 1 displays a layer structure, which was connected through C–H‧‧‧π interactions into 3D supramolecular network, while coordination polymer 2 shows a three-dimensional framework structure. In addition, the excellent fluorescence performance make them potential luminescent sensors for antibiotics. The results show that coordination polymer 1 exhibits high sensitivity for detecting of sulfadiazine (SDZ), while coordination polymer 2 can selectively detect nitrofurantoin (NFT). [ABSTRACT FROM AUTHOR]