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New class of easily-synthesisable and modifiable organic materials for applications in luminescent devices

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cris.lastimport.scopus2024-02-12T18:59:56Z
dc.abstract.enNew class of cheap, easily-synthesisable and modifiable organic luminescent materials is presented. 1,2-phenylenediboronic acid reacts with 8-hydroxyquinoline in high yield, both in solution and under mechanochemical conditions, and forms a brightly luminescent complex (emission maxima c.a. 500 nm (solid state) – 525 nm (solution)). This very first luminescent boronic 8-oxoquinoline complex exhibits emission lifetime of ns order, which, together with the DFT results, indicates a singlet-singlet origin of the fluorescence. The emission quantum yield, determined in acetonitrile is significant (c.a. 15%) and may be increased by choice of solvent. Additionally, the impact of the enhanced Lewis acidity of boron centres in the acid moiety was investigated on a series of the fluoro derivatives of 1,2-phenylenediboronic acid reacted with 8-hydroxyquinoline. In general, the mono-oxyquinolinato complex is preferably formed, however, in the case of the tetra-fluorinated acid a doubly-coordinated complex is stable and favourable. Interestingly, all of the fluorinated complexes exhibit highly comparable luminescent properties to the parent complex. Importantly, the obtained complexes appeared to be electroluminescent, thus a working OLED was successfully produced and tested.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorNawara, Krzysztof
dc.contributor.authorKamiński, Radosław
dc.contributor.authorLuliński, Sergiusz
dc.contributor.authorDurka, Krzysztof
dc.contributor.authorGłowacki, Ireneusz
dc.contributor.authorKubsik, Marcin
dc.contributor.authorWaluk, Jacek
dc.contributor.authorWoźniak, Krzysztof
dc.contributor.authorJarzembska, Katarzyna
dc.contributor.authorWiloch, Magdalena
dc.contributor.authorWitkowska, Ewelina
dc.date.accessioned2024-01-25T13:47:32Z
dc.date.available2024-01-25T13:47:32Z
dc.date.issued2017
dc.description.financeNie dotyczy
dc.description.volume138
dc.identifier.doi10.1016/J.DYEPIG.2016.11.039
dc.identifier.issn0143-7208
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/113550
dc.identifier.weblinkhttp://www.sciencedirect.com/science/article/pii/S014372081630434X
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofDyes and Pigments
dc.relation.pages267-277
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enOLEDs
dc.subject.enBoronic acids
dc.subject.en8-Hydroxyquinoline
dc.subject.enLuminescence
dc.subject.enTime-resolved spectroscopy
dc.titleNew class of easily-synthesisable and modifiable organic materials for applications in luminescent devices
dc.typeJournalArticle
dspace.entity.typePublication