Five novel coordination polymers based on the 2,6-pyridinedicarboxylic acid (H₂pdca), namely [Co(pdca)(bibp)_0.5H₂O)₂]_n (1), [Ni(pdca)(bibp)_0.5(H₂O)₂]_n (2), [Co(pdca)(bbibp)_1.5]_n (3), [Ni(pdca)(bbibp)_1.5]_n (4) and Zn(pdca)(bbibp)_0.5]_n (5) (bibp ​= ​4,4′-bis(imidazole) biphenyl, bbibp ​= ​4,4′-bis(benzoimidazo-l-yl)biphenyl and DMF ​= ​N, N’dimethylformamide) have been synthesized under solvothermal conditions. Single crystal X-ray diffraction analysis reveals that all the complexes have 3D framework structures. In addition, the properties of the complexes for photo-catalytic degradation of organic dyes were discussed. Moreover, luminescence studies reveal that complex 5 shows strong luminescent property and could be a fluorescence sensor for the detection of Cr₂O₇²⁻ion and antibiotics chloramphenicol. The K_sv values of 5 for Cr₂O₇²⁻ ion and chloramphenicol are 8.05 ​× ​10³ ​M⁻¹ and 6.69 ​× ​10³ ​M⁻¹, respectively. Meanwhile, the possible mechanism for the luminescence quenching of 5 has been discussed.

基于2,6-吡啶二羧酸（H ₂ pdca）的五种新型配位聚合物，即[Co（pdca）（bibp）_0.5 H ₂ O）₂ ] _n（1），[Ni（pdca）（bibp）_0.5（ H ₂ O）₂ ] _n（2），[Co（pdca）（bbibp）_1.5 ] _n（3），[Ni（pdca）（bbibp）_1.5 ] _n（4）和Zn（pdca）（bbibp）_0.5 ] _n（5）（bibp = 4,4'-双（咪唑）联苯，bbibp == 4,4'-双（苯并咪唑-1-基）联苯和DMF = N，N'二甲基甲酰胺）已经合成溶剂热条件。单晶X射线衍射分析表明，所有配合物均具有3D骨架结构。此外，还讨论了该络合物对有机染料的光催化降解性能。此外，发光研究表明，配合物5具有很强的发光特性，可以作为检测Cr ₂ O ₇ ^2-离子和抗生素氯霉素的荧光传感器。Cr ₂ O ₇ ^2-的K _sv值为5离子和氯霉素分别为8.05×10 ³  M ^-1和6.69×10 ³  M ^-1。同时，讨论了5的发光猝灭的可能机理。