A5064914206- Synthesis and Properties of Aromatic Compounds
- Luminescence and Fluorescent Materials
- Organic Light-Emitting Diodes Research
- Organometallic Compounds Synthesis and Characterization
- Supramolecular Chemistry and Complexes
- Catalytic C–H Functionalization Methods
- Crystallization and Solubility Studies
- Cyclopropane Reaction Mechanisms
- Synthesis and Catalytic Reactions
- Synthesis and characterization of novel inorganic/organometallic compounds
- Ferrocene Chemistry and Applications
- X-ray Diffraction in Crystallography
- Mechanical and Optical Resonators
- Porphyrin and Phthalocyanine Chemistry
- Click Chemistry and Applications
- Arsenic contamination and mitigation
- Inorganic Chemistry and Materials
- Analytical Chemistry and Sensors
- Amyloidosis: Diagnosis, Treatment, Outcomes
- Synthesis and Reactivity of Heterocycles
- Molecular Junctions and Nanostructures
- Green IT and Sustainability
- Thin-Film Transistor Technologies
- Crystal Structures and Properties
- Catalytic Cross-Coupling Reactions
Karlsruhe Institute of Technology
2019-2024
Abstract The study reports two pairs of chiral multi‐resonant thermally activated delayed fluorescence (MR‐TADF) materials PCP‐DiKTa and Czp‐DiKTa by decorating a known MR‐TADF core, DiKTa , with different [2.2]paracyclophane (PCP) based planar groups. shows narrow sky‐blue emission full width at half maximum (FWHM) 44 nm, while the is slightly broader FWHM 66 nm redshifted. Both emitters show high photoluminescence quantum yields 93 99% for respectively. Enantiomerically pure samples both...
Abstract Zintl phases of arsenic and molecular compounds containing Zintl‐type polyarsenide ions are fundamental interest in basic applied sciences. Unfortunately, the most obvious reactive source for preparation defined compounds, yellow As 4 , is very inconvenient to prepare neither storable pure form nor easy handle. Herein, we present synthesis reactivity elemental 0 nanoparticles (As Nano d =7.2±1.8 nm), which were successfully utilized as a reductive f‐element chemistry. Starting from...
Abstract The prototypical example of a (cyclo)phane, [2.2]paracyclophane (PCP), has proven to be versatile stereogenic moiety within the design circularly polarized thermally activated delayed fluorescence (CP‐TADF) emitters; however, exploration other cyclophanes CP‐TADF emitter been largely neglected. Here, comparative study photophysical and optoelectronic properties two cyclophane emitters, (1,7) t BuCzpPhTrz its isomer (1,4) , is presented. carbazolophane‐triazine compound obtained via...
Abstract Photolysis of aryl azides offers a versatile approach to achieve more sophisticated functionalization, for instance in the field chemical biology. In this study, photoactivatable azide named Pcp‐Az is presented that forms three distinct emissive molecules after irradiation. Computational studies unveiled photolysis aqueous medium undergoes different reaction channels, leading mentioned products. When photoreaction performed using supramolecular host cucurbit[8]uril(CB8) , found be...
The prototypical example of a (cyclo)phane, [2.2]paracyclophane (PCP), has proven to be versatile stereogenic moiety within the design circularly polarized thermally activated delayed fluorescence (CP-TADF) emitters; however, exploration other cyclophanes CP-TADF emitter been largely neglected. Here, comparative study photophysical and optoelectronic properties two cyclophane emitters, (1,7)tBuCzpPhTrz its isomer (1,4)tBuCzpPhTrz, is presented. carbazolophane-triazine compound...
Molecular flask cucurbit[8]uril completely reverses the stereoselectivity of intramolecular [2+2] photo-cycloaddition reactions and triggers unreactive diene to be reactive.
Abstract Die Zintl‐Phasen des Arsens und molekulare Zintl‐Anionen der Polyarsenide sind für die angewandte Grundlagenforschung von fundamentalem Interesse. Bedauerlicherweise ist gelbes Arsen, As 4 , das reaktivste naheliegendste Arsenedukt, schlecht darzustellen, in reiner Form nicht lagerfähig schwer zu handhaben. Wir berichten hier über Synthese Reaktivität elementarer 0 ‐Nanopartikel (As nano d =7.2±1.8 nm), welche reduktiven f‐Elementchemie erfolgreich als reaktive Arsenedukte verwendet...
Abstract Die gezielte, nachträgliche Modifikation vorhandener Vorläufermoleküle ermöglicht den Zugang zu einer großen Breite biologisch aktiver Verbindungen. Periphere Editierungen (z. B. C‐H‐Aktivierung) sind weit verbreitete Methoden, während am molekularen Grundgerüst noch in Kinderschuhen stecken. Deletion eines Stickstoffatoms unter Verwendung von anomeren Amid‐Reagenzien stellt ein leistungsfähiges Werkzeug zur Modifizierung des Gerüsts sekundärer Amine dar. N‐Pivaloyloxy‐N‐alkoxyamid...
We report two pairs of chiral multi-resonant thermally activated delayed fluorescence (MR-TADF) materials PCP-DiKTa and Czp-DiKTa by decorating a known MR-TADF core, DiKTa, with different [2.2]paracyclophane (PCP) based planar groups. shows narrow sky-blue emission full width at half maximum (FWHM) 44 nm, while the is slightly broader FWHM 66 nm red-shifted. Both emitters show high photoluminescence quantum yields 93 99% for Czp-DiKTa, respectively. Enantiomerically pure samples both...
Carbene coinage metal carbazolates are currently the most efficient organometallic TADF emitters. Herein we report on photophysical influence of introducing a [2.2]paracyclophane moiety via carbazolophane ligand instead carbazolate, which greatly enhances radiative rate constants by factor three to 1-3·106 s-1 for triplet exciton emission.
Ausgehend von [Cp*2Sm] konnten die Polyarsenide [(Cp*2Sm)2(μ-η2:η2-As2)] und [(Cp*2Sm)4As8], das größte molekulare Polyarsenid der f-Elemente, erhalten werden. Das Bild zeigt Bildung As22− As84− aus elementaren As0-Nanopartikeln (oben) Entstehung gelbem Arsen (As4) (unten). Details sind in Zuschrift P. W. Roesky Mitarbeitern auf S. 4430 beschrieben.
Structuring soft matter with precise control over molecular arrangements, nanoscale morphologies, especially aiming at functional polymers featuring chirality or helicity, responsiveness, and other features, has been a great research objective, which yet remains challenging task. In this work, we developed new design strategies for structuring of an entirely class chiral based on [2.2]paracyclophane derivatives. The grafting tunable moieties onto enables post-polymerization modification,...