Y-Shaped Fluorophores Based on N (2)-Aryl-1,2,3-triazoles: Synthesis and Study of Photophysical and Chemosensor Properties for the Detection of Nitroaromatic Compounds

A five-stage method for the synthesis of Y-shaped push–pull fluorophores based on 2-(4'-methoxyphenyl)-1,2,3-triazole was proposed. The resulting molecules exhibited emission in the range from 350 to 450 nm with high quantum yields (QY) of 90–99% in solvents of various polarity. The products proved to be applicable as chemosensors for both aromatic and aliphatic nitro analytes in concentrations down to 300 ppb.