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ABSTRACT
Naphthalimide and coumarin were bonded together with –NHN= being as the linkage. The emission behavior was investigated in various solvents. The energy transfer is independent in weak and medium polarity solvents. Efficient energy transfer occurred with the emission of it in polar solvent. In addition, it is highly emissive in polycarbonate and the energy transfer from coumarin to naphthalimide is more efficient. Another significant feature is its selective F− response. Upon the F− addition, the absorption around 444 nm shifted to 486 nm. And the new absorption band decreased and another new absorption band appeared around 574 nm.
Funding
This work was supported by the National Natural Science Foundation of China (21272060), PCSIRT (Grant no. IRT1061), and the Program for Innovative Research Team in Science and Technology in University of Henan Province (15IRTSTHN003). This study was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (Grant No. 2016901050).