Two new ternary coordination polymers (CPs), [Zn₂(L)(DCTP)_1.5(OH)]_n (1) and {[Cd(L)(TBTA)]·H₂O}_n (2) (L ​= ​1,3-bis(5,6-methylbenzimidazol-1-yl)propane, H₂DCTP ​= ​2,5-dichloroterephthalic acid, H₂TBTA ​= ​tetrabromoterephthalic acid) were synthesized under hydrothermal conditions. 1 displays a square-lattice (sql) network formed by tetranuclear [Zn₄(L)₂(DCTP)_6/2(H₂O)₂] complex groups, while in 2 the sql network is assembled from mononuclear complexes, both CPs are further extended into a 3D supramolecular framework by π–π stacking interactions. 1 and 2 exhibit promising photocatalytic activity toward the degradation of methylene blue (MB) under UV irradiation. Furthermore, 1 and 2 can be as efficient probes for detection of acetylacetone (acac) and Fe³⁺ ions based on luminescence quenching.

两种新的三元配位聚合物（CPs），[Zn ₂（L）（DCTP）_1.5（OH）] _n（1）和{[Cd（L）（TBTA）] H ₂ O} _n（2）（L） =在水热条件下合成了1,3-双（5,6-甲基苯并咪唑-1-基）丙烷，H ₂ DCTP = 2,5，二氯对苯二甲酸，H ₂ TBTA =四溴对苯二甲酸。图1显示了由四核[Zn ₄（L）₂（DCTP）_6/2（H ₂ O）₂ ]复杂基团形成的方格（sql）网络，而在2中，sql网络由单核复合物组装而成，两个CP通过π – π堆叠相互作用进一步扩展为3D超分子框架。图1和2显示出有希望的对UV辐射下的亚甲基蓝（MB）降解的光催化活性。此外，1和2可以作为基于发光猝灭检测乙酰丙酮（acac）和Fe ³⁺离子的有效探针。