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dc.contributorFen Edebiyat Fakültesi / Faculty of Letters and Sciences Fizik / Physicstr_TR
dc.contributor.authorAkyüz, Sevim
dc.contributor.authorBulut, Mustafa
dc.contributor.authorGöçmen, Ayten
dc.contributor.authorErk, Clakil
dc.date.accessioned2018-08-29T07:41:11Z
dc.date.available2018-08-29T07:41:11Z
dc.date.issued1995
dc.identifier28tr_TR
dc.identifier28tr_TR
dc.identifier28tr_TR
dc.identifier.urihttps://doi.org/10.1080/00387019508009904
dc.identifier.urihttps://hdl.handle.net/11413/2563
dc.description.abstractThe fluorescence spectra of the coumarin derivatives of crown ethers obtained from 7,8-dihydroxycoumarins were studied in the presence of some alkali and alkaline earth cations in acetonitrile. The altered fluorescence spectra were examined qualitatively from the point of enhancement of fluorescent quantum yields as well as a resonance. Heavy metal effects were eliminated since there is no influence of the metal salts on the spectra of the initial coumarin derivatives. However, both the complexation-enhanced fluorescence and complexation-enhanced quenching spectra is observed in the fluorescence emission and excitation spectra of macrocyclic ether-coumarin / metal salt systems. The origin of results are briefly discussed in terms of crown ether complexation. In water solutions almost no such effects were observed.tr_TR
dc.language.isoen_UStr_TR
dc.publisherTaylor and Francis Onlinetr_TR
dc.relationSpectroscopy Letterstr_TR
dc.subjectMacrocyclicstr_TR
dc.subjectcoumarin-crown etherstr_TR
dc.subjectcation complexationtr_TR
dc.subjectfluorescence spectratr_TR
dc.titleFluorescence Spectra of Salt Solutions of Coumarin Crown Etherstr_TR
dc.typeArticletr_TR
dc.contributor.authorID10127tr_TR
dc.contributor.authorID205874tr_TR


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