Highly Fluorescent Peri ‐functionalized Perylenemonoimide Derivatives with Tunable Optical Properties for Selective Sensing of Electron‐rich Aromatic Amines

Abstract A series of peri ‐functionalized perylenemonoimide dyes containing an electron donating aromatic and polyaromatic group via Suzuki‐coupling reaction has been synthesized. Photophysical properties of the synthesized dyes are extensively investigated using various spectroscopic techniques. Introduction of substituent's at peri ‐position shows a pronounced effect on emission properties. Electrochemical measurements suggest that the peri ‐functionalization of perylenemonoimide dyes make reduction much more facile compared to unsubstituted dyes. Thereafter, an efficient and selective fluorescence quenching strategy via photo‐induced electron transfer process from electron‐rich aromatic amines to the synthesized dyes has been investigated.