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

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 CHCl(3), depending on the hydrazone concentrations, th...

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Detalles Bibliográficos
Autores principales: Tisovský, Pavol, Horváth, Miroslav, Csicsai, Klaudia, Donovalová, Jana, Filo, Juraj, Cigáň, Marek, Sokolík, Róbert, Addová, Gabriela, Gáplovský, Anton
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6385022/
https://www.ncbi.nlm.nih.gov/pubmed/30678292
http://dx.doi.org/10.3390/molecules24030397
Descripción
Sumario: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 CHCl(3), depending on the hydrazone concentrations, the presence of basic anions and light stimulation. Anion recognition aspects (PF(6)(−), HSO(4)(−), Br(−), Cl(−), NO(3)(−), F(−) and CH(3)COO(−)) 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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