Known compounds of thiourea as dual naked-eye nano scale detectors of N3¯/I¯ and Cu2+ ions
محورهای موضوعی : Iranian Journal of Organic Chemistry
Halimeh Hajighasemi
1
()
Naser Foroughifar
2
()
Alireza Khajeh-Amiri
3
()
Ebrahim Balali
4
()
کلید واژه: Colorimetric probe, Ion sensing, Dual sensor, Naked-eye detection, thiourea,
چکیده مقاله :
Some colorimetric sensors containing the thiourea motif were synthesized and applied as naked-eye detectors in dimethyl sulfoxide/water solution. The ion detection studies displayed that the prepared compounds (1-4) act as selective, dual-sensitive chromogenic sensors to detect Cu2+, N3-, and I- ions. These chemosensors distinguish I- and N3- via naked-eye color changing from colorless to yellow, and red respectively in a paper test strips, besides a distinct red shift in UV-Vis. spectrum in nano scale. The result of Job's plot indicates that the stoichiometry binding ratios of compound 1 to corresponded ions are 1:1.
