Synthesises And Luminescent Detections Of Coordination Polymers Based On A Resorcin[4]arene-functionalized Tetracarboxylate

Fluorescence-based probes have received considerable attention because of their superiority in high selectivity and sensitivity.In this work,two novel luminescent isostructural coordination polymers,namely,[Zn₃（HL）₂（DMF）₂（H₂O）₂]·2H₂O（1）and[Cd₃（HL）₂（DMF）₂（H₂O）₂]·2H₂O（2）,were successfully prepared by using a new resorcin[4]arene-based tetracarboxylic acid H4 L under solvothermal conditions.In 1 and 2,HL3-anions bridge four metal cations to form charming two-dimensional double layer structures.Drastically,the highly selective and sensitive luminescent detection of small organic molecules,metal cations and anions,particularly of Fe³⁺,Cr₂O₇^2- and nitrobenzene,has been studied using 1 as a promising luminescent sensor.