Exploring of indole derivatives for ESIPT emission: A new ESIPT-based fluorescence skeleton and TD-DFT calculations

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dc.contributor.authorKaya, Serdal
dc.contributor.authorAydin, Hatice Gulten
dc.contributor.authorKeskin, Selbi
dc.contributor.authorEkmekci, Zeynep
dc.contributor.authorMenges, Nurettin
dc.date.accessioned2024-02-23T14:13:02Z
dc.date.available2024-02-23T14:13:02Z
dc.date.issued2021
dc.departmentNEÜen_US
dc.description.abstractABS T R A C T Appropriate synthesis methods gave six different indole derivatives substituted at the C-2 or C-3 position. ESIPT emission capacities of these derivatives were investigated. It was concluded that the indole derivative containing the 1,2-dicarbonyl group at the C-2 position has ESIPT emission. Although adding water to the DMSO solution of the ESIPT-based molecule (9:1) resulted in ESIPT quenching, steady-state measurements in MeOH did not occur ESIPT quenching. TD-DFT calculation for uncovering the ESIPT mechanism emerged that the ESIPT mechanism occurred as a barrierless process. The X-ray analysis and DFT conformational analysis revealed that NH and CO groups involving proton transfer mechanisms are in the cis position. A mono-exponential decay was observed in DMSO and MeOH solutions, in which lifetimes were measured as 6.1 and 5.5 ns, respectively. pH studies revealed that acidic and basic solutions of molecule 7 did not influence ESIPT emission.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [218Z027]en_US
dc.description.sponsorshipAuthors thank The Scientific and Technological Research Council of Turkey (TUBITAK) for the financial support (Grand Number: 218Z027). Authors thank to Dr. Meltem TAN for her valuable support in Theoretical Calculations. N.M. thanks to Dr. Hakan BILGILI for lifetime measurements.en_US
dc.identifier.doi10.1016/j.jphotochem.2021.113487
dc.identifier.issn1010-6030
dc.identifier.issn1873-2666
dc.identifier.scopus2-s2.0-85113176483en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1016/j.jphotochem.2021.113487
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12263
dc.identifier.volume420en_US
dc.identifier.wosWOS:000697023900003en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofJournal Of Photochemistry And Photobiology A-Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectIndoleen_US
dc.subjectTd-Dften_US
dc.subjectBarrierless Esipten_US
dc.subjectTime-Resolved Measurementen_US
dc.subjectHeterocyclic Chemistryen_US
dc.titleExploring of indole derivatives for ESIPT emission: A new ESIPT-based fluorescence skeleton and TD-DFT calculationsen_US
dc.typeArticleen_US

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