Tisovský P, Csicsai K, Donovalová J, Šandrik R, Sokolík R, Gáplovský A. Effect of a =X-NH-Fragment, (X = C, N), on
Z/
E Isomerization and ON/OFF Functionality of Isatin Arylhydrazones,
((Arylamino)Methylene)Indolin-2-Ones and Their Anions.
Molecules 2020;
25:E3082. [PMID:
32640761 PMCID:
PMC7412119 DOI:
10.3390/molecules25133082]
[Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/01/2020] [Accepted: 07/03/2020] [Indexed: 11/17/2022] Open
Abstract
The subject of this work was the study of thermally and photochemically stimulated Z « E isomerization and hydrazo « azo tautomerism of Z- and E-isomers of isatin arylhydrazones and ((arylamino)methylene)indolin-2-ones and their anions. Using NMR, UV-Vis spectroscopy, kinetic measurements, and HPLC, we studied the relationship of structure, (Z- and E-isomers), of these compounds and hydrazo=azo tautomerism. The ON/OFF functionality of these compounds and their anions using light to stimulate switching between ON and OFF states was investigated. We pointed out the characterization of the effect of =N- and =CH- structural fragments and aryl structure on ON and OFF states of isatin arylhydrazones and ((arylamino)methylene)indolin-2-ones.
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