Fluorescence quenching between strong pi-electron donor-acceptors of carbazolocarbazole and tetranitrofluorenone leading to electron transfer

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dc.contributor.authorIcli, S
dc.contributor.authorIcil, H
dc.contributor.authorWhitten, DG
dc.contributor.authorSayil, C
dc.contributor.authorDityapak, I
dc.date.accessioned2019-10-27T11:52:59Z
dc.date.available2019-10-27T11:52:59Z
dc.date.issued1997
dc.departmentEge Üniversitesien_US
dc.description.abstractSinglet energies and fluorescence quantum yields of synthesized dihydrocarbazolocarbazole, 1, dimethylcarbazolocarbazole, 2, dibenzylcarbazolocarbazole, 3, were measured to be between 76.5-74.3 kcal/mol and 0.07-0.02 respectively. A Stern-Volmer plot of fluorescence quenching of dihydrocarbazolocarbazole, 1, with 2,4,5,7-tetranitrofluorenone, 4, has given a rate constant of quenching of k(q) = 7.4 x 10(12) M(-1)s(-1). The free energies of the exothermic electron transfer reaction are calculated to be -33.6 kcal/mol for dihydrocarbazolocarbazole, 1, and -26.8 kcal/mol for dimethylcarbazolocarbazole, 2. High values for the rate of fluorescence quenching and the free energies are the evidence for an electron transfer process between these strong pi-electron donor-acceptor complexed molecules.en_US
dc.identifier.doi10.1016/S0022-2313(97)00124-5
dc.identifier.endpage359en_US
dc.identifier.issn0022-2313
dc.identifier.issue4en_US
dc.identifier.startpage353en_US
dc.identifier.urihttps://doi.org/10.1016/S0022-2313(97)00124-5
dc.identifier.urihttps://hdl.handle.net/11454/34830
dc.identifier.volume75en_US
dc.identifier.wosWOS:A1997YK85500011en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofJournal of Luminescenceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectcharge-transfer complexesen_US
dc.subjectphotoelectron transferen_US
dc.subjecttriplet exciplexen_US
dc.subjectcarbazolocarbazoleen_US
dc.subjecttetranitrofluorenoneen_US
dc.titleFluorescence quenching between strong pi-electron donor-acceptors of carbazolocarbazole and tetranitrofluorenone leading to electron transferen_US
dc.typeArticleen_US

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