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Beilstein J. Org. Chem. 2023, 19, 1867–1880, doi:10.3762/bjoc.19.139
Graphical Abstract
Figure 1: Chemical structures of pyridine-3,5-dicarbonitrile-based TADF emitters.
Scheme 1: Synthesis of dicyanocarbazole 6. Reaction conditions: a) cyanoacetamide, piperidine, methanol, 40 °...
Scheme 2: Synthesis of dicyanocarbazoles 7–9. Reaction conditions: a) corresponding ethynyl arene, Pd(Ph3P)4 ...
Figure 2: Absorption (a, b) and PL (c, d) spectra of dilute toluene, THF, and chloroform solutions (10−5 M) a...
Figure 3: PL spectra (a) and PL decay curves (b) of air-equilibrated (as prepared) and deoxygenated toluene s...
Figure 4: Non-normalized (a) and normalized (b) PL spectra and PL decay curves (c) of the film of a 10 wt % m...
Figure 5: TGA (a) and DSC 2nd heating (b) curves of compounds 6–9.
Figure 6: CV curves of compounds 6–9.
Figure 7: Photoelectron emission spectra of the vacuum-deposited films of compounds 6–9 on glass substrates c...
Figure 8: The current transients (a) for electrons recorded at the different voltages for the vacuum-deposite...
Beilstein J. Org. Chem. 2020, 16, 1142–1153, doi:10.3762/bjoc.16.101
Scheme 1: Synthesis of quinazoline derivatives 1–3. Conditions: i) ammonium acetate, copper(II) chloride, iso...
Figure 1: DSC (a, b, c) and TGA (d) curves of compounds 1–3. Scan rates were 20 °C/min (TGA) and 10 °C/min (D...
Figure 2: Frontier-orbital distributions and optimized geometries at the ground state of quinazoline-based co...
Figure 3: Cyclic voltammograms of quinazoline-based compounds 1–3.
Figure 4: UV–vis absorption spectra of compounds 1–3. a) Theoretical and b) experimental spectra of compounds ...
Figure 5: Fluorescence spectra (a) of dilute solutions and thin films of compounds 1–3 (λexc = 350 nm and PL ...
Figure 6: Electron and hole NTOs of compounds 1–3 in the S1 excited state (vacuum).
Figure 7: Chemical structures of exciplex-forming materials used, and visualization of white electroluminesce...
Beilstein J. Org. Chem. 2020, 16, 989–1000, doi:10.3762/bjoc.16.88
Scheme 1: Synthesis of acridan-based compounds 3–6. Reagents and conditions: (a) bromoethane, KOH, tetrabutyl...
Figure 1: Theoretically calculated HOMO and LUMO levels distributions and optimized geometries of 3–6 DFT cal...
Figure 2: DSC curves of compounds 4 and 5.
Figure 3: Absorption and PL spectra (λex = 330 nm) of compounds 3–6. a) Absorption spectra as neat films, dil...
Figure 4: a) Cyclic voltammogram of derivative 3 in dichloromethane (a three-electrode cell consisting of a p...
Figure 5: TOF photocurrent transients for holes in vacuum-deposited layers of compound 4 (a); hole mobility v...
Figure 6: Energy diagrams of the fabricated OLEDs (a); normalized electroluminescence spectra of devices A–C ...