A luminescent coordination polymer with potential active site for the sensing of metal cation, anion and nitrobenzene explosive

• A new CP of 1 with active site has been synthesized and structurally characterized.
• 1 displays intense luminescence with high thermal stability.
• 1 exhibit the luminescent sensing of Cu2 +, CrO42 − and nitrobenzene.

A new 1D Zn-based coordination polymer (CP), {[Zn(HBTB)(pdp)]·H2O} (1) (H3BTB = 1,3,5-benzenetribenzoic acid and pdp = 2-(4,6-di(pyridine-2-yl)pyridine- 2-yl)pyridine), has been synthesized under solvothermal condition and structurally characterized. The compound displays intense luminescence in solid state at room temperature with high thermal stability. Interestingly, Luminescent studies indicate that 1 could be an efficient multifunctional fluorescence material for high sensitivity metal ions, anions and organic small molecules, especially for Cu2 +, CrO42 − and nitrobenzene (NB) by luminescent quenching. The probable quenching mechanism of different analytes was also discussed.

A new 1D Zn(II)-based coordination polymer (CP) with potential active sites based on 2-(4,6-di(pyridine-2-yl)pyridine-2-yl)pyridine (pdp) and 1,3,5-benzenetribenzoic acid (H3BTB), {[Zn(HBTB)(pdp)]·H2O} (1), has been synthesized solvothermally. Luminescence properties of 1 were investigated, and the results show that 1 can work as highly sensitive sensors to Cu2 +, CrO42 − and nitrobenzene (NB) explosive.Figure optionsDownload as PowerPoint slide