Known compounds of thiourea as dual naked-eye nano scale detectors of N3¯/I¯ and Cu2+ ions

الموضوعات : Iranian Journal of Organic Chemistry

Halimeh Hajighasemi ¹ , Naser Foroughifar ² , Alireza Khajeh-Amiri ³ , Ebrahim Balali ⁴

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تاريخ الإرسال : 27 الإثنين , محرم, 1445 تاريخ التأكيد : 27 الإثنين , محرم, 1445 تاريخ الإصدار : 11 الإثنين , شوال, 1444

الکلمات المفتاحية: Colorimetric probe, Ion sensing, Dual sensor, Naked-eye detection, thiourea,

ملخص المقالة :

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.