Fluorescence materials based on excited state intramolecular proton transfer(ESIPT)have attracted great attentiori due to the unique four-level energy states.Herein,we report the assembly of a Cd-LF coordination polym...Fluorescence materials based on excited state intramolecular proton transfer(ESIPT)have attracted great attentiori due to the unique four-level energy states.Herein,we report the assembly of a Cd-LF coordination polymer from purposely designed LF(H2hpi2cf)ligand,which can present switchable luminescence behavior by gain or loss protons originated in uncoordinated ESIPT sites and serve as acid-base vapor sensors.Fabricated into in-situ grown film or transparent ink by simple methods,Cd-LF presents facile and portable amine sensor for food spoilage detection and fluorescent anti-counterfeiting ink applications.展开更多
基金Supported by the National Natural Science Foundation of China(Nos.21771197,21821003,21720102007)the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program,China(No.2017BT01C161)the Fundamental Research Fund(FRF)for the Central Universities,China.
文摘Fluorescence materials based on excited state intramolecular proton transfer(ESIPT)have attracted great attentiori due to the unique four-level energy states.Herein,we report the assembly of a Cd-LF coordination polymer from purposely designed LF(H2hpi2cf)ligand,which can present switchable luminescence behavior by gain or loss protons originated in uncoordinated ESIPT sites and serve as acid-base vapor sensors.Fabricated into in-situ grown film or transparent ink by simple methods,Cd-LF presents facile and portable amine sensor for food spoilage detection and fluorescent anti-counterfeiting ink applications.
