A new zinc(II) coordination polymer (Zn-CP) constructed from 4,4-dipyridyldiphenyl ether (BPDPE) and 1,2-benzenedicarboxylic acid (1,2-bdc), namely [Zn₂(1,2-bdc)₂(BPDPE)₂]_n (1), has been discovered using the solvothermal method. Complex 1 is a two-dimensional sheet with uncoordinated pyridine group composed of one-dimensional chain [Zn(1,2-bdc)]_n connected by BPDPE, and finally forms a three-dimensional network through π···π interactions. Complex 1 shows excellent thermo and acid/base stability in aqueous solutions with a pH of 2–12. Further research indicates that complex 1 has high selectivity for the detection of TNP and Fe³⁺ by fluorescence sensing. The quenching constant (K_sv) is 1.99 × 10⁴ M for TNP with the detection limit (LOD) of 2.54 × 10⁻⁶ M; the K_sv is 1.0 × 10⁴ M for Fe³⁺, and LOD is 6.1 × 10⁻⁶ M. In addition, the mechanisms of fluorescence quenching have been studied experimentally and theoretically.

由4,4-二吡啶基二苯醚（BPDPE）和1,2-苯二甲酸（1,2-bdc）构成的新型锌（II）配位聚合物（Zn-CP），即[Zn ₂（1,2-bdc）₂（BPDPE）₂ ] _n（1），已使用溶剂热法发现。配合物1是由BPDPE连接的一维链[Zn（1,2- bdc ）] _n组成的带有未配位吡啶基的二维薄片，最终通过π ··· π相互作用形成三维网络。配合物1在pH为2–12的水溶液中显示出出色的热稳定性和酸/碱稳定性。进一步的研究表明，复杂1具有通过荧光传感检测TNP和Fe ³⁺的高选择性。 对于TNP，淬灭常数（K _sv）为1.99×10 ⁴ M，检测限（LOD）为2.54×10 ^-6  M； Fe ³⁺的K _sv为1.0×10 ⁴ M ，LOD为6.1×10 ^-6M  。此外，还通过实验和理论研究了荧光猝灭的机理。