Citation: Zhao-Di Zhou, Zi-Long Xu, Dan Wang, Lin-Fang Jia, Han-Qing Zhao, Bao-Yi Yu, Chong-Chen Wang. Two Bisligand-Coordinated Luminescent Zn(II)-Coordination Polymers for Sensing of Ions and Pesticides in Aqueous Solutions[J]. Chinese Journal of Structural Chemistry, ;2022, 41(9): 220908. doi: 10.14102/j.cnki.0254-5861.2022-0077 shu

Two Bisligand-Coordinated Luminescent Zn(II)-Coordination Polymers for Sensing of Ions and Pesticides in Aqueous Solutions

Figures(5)

  • Two coordination polymers (CPs) [Zn(PTA)(DTP)(H2O)2]·(DMF) (CP-1) and [Zn(BTC)(DTP)]·(CH3CN)1.5·(H2O)4 (CP-2) with one- and two-dimensional architectures were synthesized from Zn(II) ion and different organic linkers like terephthalic acid (H2PTA), benzene-1, 3, 5-tricarboxylic acid (H3BTC), and 3, 5-di(1, 2, 4-triazol-1-yl) pyridine (DTP). The fluorescent sensing experiments showed that the two CPs displayed effective, sensitive, and selective abilities towards Fe3+ and Cr2O72-. For sensing the pesticides, CP-1 outperforms in sensing of metamitron (MMT) and CP-2 is ultrasensitive towards imidacloprid (IMI). The possible mechanisms involved in the quenching of the fluorescence intensity include the inner filter effect (IFE) and the fluorescence resonance energy transfer (FRET) effect.
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