State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China.
Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China.
Chem Asian J. 2019 Oct 15;14(20):3620-3626. doi: 10.1002/asia.201900633. Epub 2019 Jul 16.
Due to their striking optical properties, luminescent coordination polymers as sensors for the detection of hazardous species have drawn interest of researchers in consideration of the control of environmental pollution. In this work, the organic ligand 2-(4-((E)-2-(pyridine-2-yl)vinyl)styryl)pyridine (2-bpeb), which possesses a large π-conjugated system, was employed to react with d metal ions to obtain novel luminescent coordination polymers. Three complexes [Cd(2-bpeb) (CNA)(H O)] (CP1), [Cd(2-bpeb) (NDC)] (CP2) and [Zn(2-bpeb)(BDC)] (CP3) were synthesized successfully by introducing carboxylic acids of 4-carboxycinnamic acid (H CNA), 2,6-naphthalene dicarboxylic acid (H NDC) and 1,4-benzenedicarboxylic acid (H BDC) as auxiliary ligands. Because of the existence of the large π-conjugated system and d metal ions, all of these coordination polymers exhibit striking fluorescence properties. Impressively, all of them can function as sensors for the detection of highly oxidizing anions MnO and Cr O , with an increased sensitivity for MnO .
由于其显著的光学性质，发光配位聚合物作为检测有害物种的传感器引起了研究人员的兴趣，因为它可以考虑控制环境污染。在这项工作中，使用了具有大 π 共轭体系的有机配体 2-(4-((E)-2-(吡啶-2-基)乙烯基)苯乙烯基)吡啶(2-bpeb)，与 d 金属离子反应，得到了新型发光配位聚合物。通过引入 4-羧基肉桂酸(H CNA)、2,6-萘二酸(H NDC)和 1,4-苯二甲酸(H BDC)作为辅助配体，成功合成了三种配合物[Cd(2-bpeb)(CNA)(H O)] (CP1)、[Cd(2-bpeb)(NDC)] (CP2)和[Zn(2-bpeb)(BDC)] (CP3)。由于大 π 共轭体系和 d 金属离子的存在，所有这些配位聚合物都表现出显著的荧光性质。令人印象深刻的是，它们都可以作为检测强氧化性阴离子 MnO 和 Cr O 的传感器，对 MnO 的灵敏度更高。
