Macrocyclic probes 1 and 2 linked to two nitrophenylurea and two nitrophenylthiourea groups.
The coordination ability of compounds 1 and 2 toward different cations and anions by UV–vis.
Immobilization of probe 1 in cellulose supported systems to the fast recognition of the anions F−, AcO−, CN−, H2PO4−.