Optical Anion Receptors with Urea/Thiourea Subunits on a TentaGel Support

Bruno Zavala-Contreras, Hisila Santacruz-Ortega*, Angel Ulises Orozco-Valencia, Motomichi Inoue, Karen Ochoa Lara, Rosa Elena Navarro

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


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.

Original languageEnglish
Pages (from-to)9381-9390
Number of pages10
JournalACS Omega
Issue number14
StatePublished - 13 Apr 2021

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© 2021 The Authors. Published by American Chemical Society.


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