Author(s): Bian, Song, Ye, Jia-Hai, Fan, Zheng, Zhang, Wenchao, Wang, Leyong, School of Chemical Engineering, Nanjing Univesity of Science and Technology, Laboratory for Supramolecular Chemistry and Dynamic Materials, School of Chemistry and Chemical Engineering, Nanjing Universty
Pages: 855-861
Year: 2016 Issue:  4
Journal: Chinese Journal of Organic Chemistry
Keyword:  tetraphenylethene; DB24C8; secondary ammonium ion; supramolecular polymer; aggregations-induced emission;
Abstract: Dibenzo-24-crown-8（DB24C8） and dibenzylammonium（DBA） are always utilized for the construction of supramolecular assemblies. We reported a new kind supramolecular assembly polymer constructed by M1 which was synthesized from tetraphenylethene（TPE） linked with DB24C8 and DBA through click reaction. The chemical structures of all the compounds were fully characterized by ¹H NMR, ¹³C NMR, and MS. The ¹H NMR titration showed that the supramolecular assembly was successfully constructed in acidic condition. The fluorescent results showed that the assemblies displayed ratio-metric properties with the changes of aggregation-induced emission and monomer-emission, and fluorescence quenching with addition of Pd2+.