Molecules (Jan 2019)

Isatin-1,8-Naphthalimide Hydrazones: A Study of Their Sensor and ON/OFF Functionality

  • Pavol Tisovský,
  • Miroslav Horváth,
  • Klaudia Csicsai,
  • Jana Donovalová,
  • Juraj Filo,
  • Marek Cigáň,
  • Róbert Sokolík,
  • Gabriela Addová,
  • Anton Gáplovský

DOI
https://doi.org/10.3390/molecules24030397
Journal volume & issue
Vol. 24, no. 3
p. 397

Abstract

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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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