Colorimetric macrocyclic anion probes bearing nitrophenylurea and nitrophenylthiourea binding groups
摘要:
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-, CIO4-, NO3-, CN-, OH-, CH3COO-, and H2PO4-) was investigated by UV-vis spectroscopy in DMSO. (C) 2013 Elsevier Ltd. All rights reserved.