ESTER VE HİDRAZON SÜBSTİTÜYE BODIPY BİLEŞİKLERİNİN SENTEZİ VE FOTOFİZİKSEL ÖZELLİKLERİNİN İNCELENMESİ

Abstract

The 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene structure known as BODIPY is a fluorescent molecule that has been attracting attention especially in recent years. BODIPY-based molecules are being used in many areas including pH and ion sensors, intramolecular imaging, photodynamic therapy, dye sensitizing solar cells and molecular logic gates. High fluorescence quantum yield, ease of synthesis, high photo and thermal stability, sharp absorption and emission peaks are important advantages of these compounds. In this study, BODIPY molecules bearing one or both of the dimethyl malonate and hydrazone groups were synthesized. The structures of the synthesized compounds were characterized by 1H NMR, 13C NMR, 19F NMR, COSY, HR-MS and FT-IR spectroscopic methods. Studies on the application areas of these synthesized molecules have been carried out. For this purpose photophysical properties of the molecules in different solvents and in the presence of various anions and cations were studied. It was shown that the BODIPY structure containing dimethyl malonate group can be used as water sensor, while the BODIPY system bearing both dimethyl malonate and hydrazone groups can be used as a ratiometric fluorescent Cu2+ sensor.