Journal
MOLECULES
Volume 24, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/molecules24030397
Keywords
on/off switches; anion sensors; intramolecular interaction; UV-Vis spectroscopy
Funding
- Comenius University Science Park [ITMS: 26240220086]
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Five novel hydrazones derived from substituted isatins were synthesized as potential anion sensors. Using UV-VIS, FTIR, NMR and fluorescence spectroscopy, these compounds' tautomeric equilibrium and Z-E photoisomerization were studied in DMF and CHCl3, depending on the hydrazone concentrations, the presence of basic anions and light stimulation. Anion recognition aspects (PF6-, HSO4-, Br-, Cl-, NO3-, F- and CH3COO-) and these receptors' detection limits were also studied. We also tested the light-stimulated ON-OFF functionality of these compounds in the presence or absence of these anions.
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