Open AccessSynthesis of Conjugated Molecules Based on Dithienopyrrole Derivatives and Pyrene as Chemosensor for Mesotrione Detection
Author(s) -
Bao Kim Doan,
Cam Nguyen,
T. P. Bui,
Tung Tran,
Ha Phuong Ky Huynh,
Quoc-Thiet Nguyen,
Son Thanh Cu,
LeThu T. Nguyen,
Chau Tran,
Phong Mai,
Hai Giang Tran,
Hà Trần Nguyên
Publication year - 2022
Publication title -
journal of the brazilian chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.337
H-Index - 70
eISSN - 1678-4790
pISSN - 0103-5053
DOI - 10.21577/0103-5053.20220031
Subject(s) - conjugated system , chemistry , molecule , pyrene , pyrrole , photochemistry , fluorescence , fourier transform infrared spectroscopy , quenching (fluorescence) , organic chemistry , polymer , physics , quantum mechanics
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.