Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2182
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dc.contributor.authorMeena, Dheeraj Kumar-
dc.date.accessioned2024-03-22T06:47:33Z-
dc.date.available2024-03-22T06:47:33Z-
dc.date.issued2023-05-
dc.identifier.urihttp://hdl.handle.net/123456789/2182-
dc.descriptionEmbargo perioden_US
dc.description.abstractThe Z-isomer of arylazo(hetero)arene, particularly azopyrazoles, a class of five-membered azo photoswitches, has exceptional thermal stability and quantitative photoswitching (half-lives up to 1000 days). The substitution pattern influences the thermal half-life of these Z- isomers due to steric and electronic effects. Intriguingly, the half-lives of hydroxy derivatives (at ortho and para position to azo group) of N-Me pyrazoles and isoxazoles are found to be very less due to tautomerization of hydroxy proton at azo-nitrogen. The steric and electronic effects have been used mostly to counter significant substituent impacts. Herein, we report an approach to enhance the thermal stability of photoswitched state by substitution, varying heterocycles and quaternization of N-atom of pyrazoles or isoxazoles. Accordingly, a new class of such ionic photoswitches were created by simply alkylation of N-atom of heterocyclic ring.en_US
dc.language.isoenen_US
dc.publisherIISER Mohalien_US
dc.subjectTuning the Thermal Stabilityen_US
dc.subjectZ-isomer of Hydroxy Derivativesen_US
dc.subjectPhenylazohetroarene Photoswitchesen_US
dc.titleTuning the Thermal Stability of Z-isomer of Hydroxy Derivatives of Phenylazohetroarene Photoswitchesen_US
dc.typeThesisen_US
dc.guideVenkataramani, Sugumaren_US
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