Synthesis of Conjugated Molecules Based on Dithienopyrrole Derivatives and Pyrene as Chemosensor for Mesotrione Detection

• Autor(a) principal: Doan,Bao K.
• Data de Publicação: 2022
• Outros Autores: Nguyen,Cam H. T., Bui,Thao T., Tran,Tung V. T., Huynh,Ha P. K., Nguyen,Quoc-Thiet, Cu,Son T., Nguyen,Le-Thu T., Tran,Chau D., Mai,Phong T., Tran,Hai L., Nguyen,Ha T.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of the Brazilian Chemical Society (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532022000901106
• topic: conjugated molecules; pyrene; dithieno[3,2-b:2’,3’-d]pyrrole; chemosensor; fluorescent molecules

The conjugated molecules based on pyrene and dithienopyrrole derivatives including 4-(2-ethylhexyl)-2-(pyren-1-yl)-4H-dithieno[3,2-b:2’,3’-d]pyrrole (EP4HP) and 4-(2-ethylhexyl)-2,6-di(pyren-1-yl)-4H-dithieno[3,2-b:2’,3’-d]pyrrole (EDP4HP) have been successfully synthesized via C-H direct arylation reaction. The structures of these conjugated molecules were determined via nuclear magnetic resonance and Fourier-transform infrared spectroscopy (FTIR). The optical properties of conjugated molecules were evaluated via ultraviolet visible (UV-Vis) and fluorescence spectroscopies. The conjugated molecules exhibited the efficient fluorescence quenching toward herbicide mesotrione as nitroaromatic pesticides that could be promising candidates as the chemosensor for tracing of nitroaromatic pesticides.