Abstract
Two novel molecular probes bearing two urea (sensor 1) or thiourea (sensor 2) groups (as anion recognition site) coupled with a nitrophenyl group (chromogenic unit) were synthesized and evaluated according to the binding site-signaling subunit approach.The behavior of these different compounds toward metal ions (Co2+, Ni2+, Cu2+, Zn2+, and Cd2+) and anions (F−, Cl−, Br−, I−, ClO4−, NO3−, CN−, OH−, CH3COO−, and H2PO4−) was investigated by UV–vis spectroscopy in DMSO.
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