Syntheses And Properties Of Cu(?) Coordination Polymers Based On A Pyridyl-Functionalized Resorcin[4]Arene

In this work,a pyridyl-functionalized resorcin[4]arene?L?was synthesized successfully.Two novel Cu?I?coordination polymers,[Cu₂LBr₂]?1?and[Cu₂L₂Cl₂]·2CH₃OH?2?were gained by the reaction of L and copper salts under solvothermal condition.The structures were determined by X-ray diffraction.The structures of 1 and 2 are one-dimensional ribbon and 2D layer,respectively.They were also characterized via infrared spectrum and elemental analyse.1 and 2 exhibit outstanding thermal stability.Notably,1 shows excellent chemical stability in water solutions with different pH values and various organic solvents.The luminescent properties of 1 and 2 were studied.1 and 2 can selectively probe Cr₂O₇^2-and MnO4?via luminescent quenching under the presence of other anions.In addition,nitrobenzene can be detected selectively via 1.The optimal conditions of 1 catalyzing azide–alkyne cycloaddition?AAC?were explored systematically.1 shows an excellent catalytic activity for AAC reaction with different substrates under the optimal conditions.The corresponding catalytic mechanism was further proposed.