Highly electron-deficient 3,6-diaza-9-borafluorene scaffolds for the construction of luminescent chelate complexes
J. Adámek, Paulina H. Marek‐Urban, Krzysztof Woźniak, Krzysztof Durka, Sergiusz Luliński
Abstract
The synthesis and characterization of two fluorinated 3,6-diaza-9-hydroxy-9-borafluorene oxonium acids featuring improved hydrolytic stability and the strong electron-deficient character of the diazaborafluorene core is reported. These boracycles served as precursors of fluorescent spiro-type complexes with (O,N)-chelating ligands which revealed specific properties such as delayed emission, white light emission in the solid state and photocatalytic performance in singlet oxygen-mediated oxidation reactions.
Topics & Concepts
Oxonium ionSinglet oxygenChelationLuminescenceFluorescenceChemistryPhotochemistrySolid-stateCharacterization (materials science)Polymer chemistryCombinatorial chemistryMaterials scienceInorganic chemistryOxygenNanotechnologyOrganic chemistryIonPhysical chemistryPhysicsOptoelectronicsQuantum mechanicsLuminescence and Fluorescent MaterialsOrganic Light-Emitting Diodes ResearchOrganoboron and organosilicon chemistry