Two simple chemosensors with urea (L1) and thiourea (L2) groups were synthesized and studied by different spectroscopic techniques. Both receptors can sense acetate (Ac-), dihydrogen phosphate (H2PO4-), and fluoride (F-) anions, accompanied by changes in UV-vis and 1H NMR spectra, and an optical response is observed as a color change of the solutions due to deprotonation and hydrogen-bonding processes. Also, L1 and L2 were supported on TentaGel resins (R1 and R2), and their fluoride-sensing properties in DMSO and water solutions were studied. Interestingly, R2 can sense fluoride ions in sample solutions of 100% water.
|Number of pages||10|
|State||Published - 13 Apr 2021|
Bibliographical noteFunding Information:
This work was supported by the Consejo Nacional de Ciencia y Tecnología de México (CONACyT, Red Temática de Química Supramolecular” Proyecto 294810) and Universidad de Sonora (grant no. USO316006137). B.Z.-C. thanks CONACYT for graduate doctoral scholarship.
© 2021 The Authors. Published by American Chemical Society.