Optical Anion Receptors with Urea/Thiourea Subunits on a TentaGel Support.
ACS Omega
; 6(14): 9381-9390, 2021 Apr 13.
Article
em En
| MEDLINE
| ID: mdl-33869918
ABSTRACT
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.
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MEDLINE
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En
Ano de publicação:
2021
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Article