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

AUTOR(ES)

Doan, Bao K.; 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.

FONTE

Journal of the Brazilian Chemical Society

DATA DE PUBLICAÇÃO

2022

RESUMO

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.

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