An AIE-ligand-based coordination polymer with a new wheel-shaped Cd6 cluster, a unique bamboo-like architecture and highly efficient dual-response sensing properties

• Published in: New journal of chemistry Vol. 48; no. 8; pp. 3656 - 3664
• Main Authors: Zhang, Jinfang, Zhao, Shunchang, Tao, Xingyu, Chen, Qinghan, Yin, Dejing, Zhang, Chi
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 19.02.2024
• Subjects: Aqueous solutions; Bamboo; Clusters; Coordination polymers; Ligands; Quenching
• ISSN: 1144-0546; 1369-9261
• DOI: 10.1039/d3nj04960d

It is important and challenging to design and construct coordination polymers (CPs) with special architectures and functions. In this study, a novel CP {[(H3O)2(Cd6L6SO4)]·3DMF}n (1) was synthesized using cadmium sulfate and the AIE ligand di(4-carboxyphenyl)-dibenzofulvene (H2L) through a solvothermal reaction with a one-dimensional bamboo-like architecture for the first time, which was constructed using a novel wheel-shaped [Cd6(COO)12SO4]2− cluster and angular L bridges. 1 has good water and thermal stabilities and can sensitively, selectively and cyclically detect TNP and MnO4− in an aqueous medium. In particular, the quenching constants of 1 reached 8.95 × 104 M−1 (TNP) and 1.10 × 105 M−1 (MnO4−), which were higher than those of most CP-based sensor materials. Moreover, the luminescent quenching sensing mechanisms of 1 towards TNP and MnO4− were explored.