Synthesis, Crystal Analysis, and Optoelectronic Properties of Diazole‐Functionalized Acenes and Azaacenes

Pan, Huahang; Song, Tingting; Yin, Xiaomeng; Jin, Pengcheng; Xiao, Jinchong

doi:10.1002/chem.201705657

Cited by 38 publications

(21 citation statements)

References 80 publications

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“…Azaacenes and their derivatives have been widely investigated due to their unique properties and employed in optoelectronic devices, e. g. as emitters in organic light‐emitting diodes (OLEDs) or in organic field‐effect transistors (OFETs) …”

Section: Introductionmentioning

confidence: 99%

Optical Spectra and Fluorescence Quenching in Azaacenes Bearing Five‐Membered Rings

et al. 2019

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Optical absorption and emission properties as well as fluorescence quenching via introduction of an additional unsaturated five-membered ring in some azaacenes are investigated computationally. It is shown that non-radiative decay via conical intersections or intersystem crossing is rather unlikely. Instead, the additional double bond alters the electronic structure of the first excited singlet state, turning it into a dark state with long lifetime and hence low fluorescence rate, that cannot be seen anymore with the naked eye.

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Section: Introductionmentioning

confidence: 99%

Optical Spectra and Fluorescence Quenching in Azaacenes Bearing Five‐Membered Rings

et al. 2019

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“…Apparently, BTX easily formed a dimer. Because of intermolecular mismatch arrangement of benzo[ kl ]xanthene unit, there was no π‐π interactions, despite of the distance between them of 3.42 Å ,. The twisted structure and the mismatch intrermolecular packing suppressed the π‐stacking interaction to a certain extent and thus this desired molecule might be chosen as appealing active candidate for organic device.…”

Section: Resultsmentioning

confidence: 99%

11,16‐Di‐tert‐butyl‐9,18‐diphenylbenzo[kl]benzo[8,9]triphenyleno [2,3‐b]xanthene: Synthesis, Photophysics, Self‐Assembly and Electroluminescent Properties

et al. 2019

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A highly thermally stable twistarene, namely 11, 16di-tert-butyl-9,18-diphenylbenzo[kl]benzo [8,9]triphenyleno [2,3-b]xanthene (BTX), has been synthesized via a simple reaction, and its structure was unambiguously determined by single crystal X-ray analysis with a twisted angle of 37.9°b etween plane C1-C2-C4 and plane C16-C17-C24. More interestingly, molecule BTX could self-assembly into nano-wires and nanospheres via simple reprecipitation, which were characterized by scanning electron microscope (SEM), UV-vis absorption and emission spectra. The fabricated electroluminescent devices based on BTX as active ingredient presented a maximum brightness of 4355 cd m À 2 (bias voltage at 9.0 V) with CIE coordinate of (0.14, 0.53). Scheme 1. Chemical structures of compounds TBH and BTX.substrate was put into the ultraviolet ozone instrument for surface treatment. After 30 min, the prepared PEDOT : PSS solution was rotated evenly on the surface of the substrate through spinning process, which was dried in an oven at 130°C for 15 min. BTX predissolved in chlorobenzene solution with various concentration (8 mg/mL, 10 mg/mL, 12 mg/mL, 14 mg/mL) were spin-coated on the substrate in nitrogen glove box, and then fade at 100°C for 10 min. Then, TPBi, LiF and Al were evaporated on the substrate in 6 × 10 À 4 Pa. The device performances (EL spectra, JÀ V curves, EQE values, and CIE coordinates) were recorded with a spectrophotometer (FLAM-ETVIS-NIR-ES of ocean optics) and a computer controlled Keithley 2400 Sourcemeter (America Photo Research), respectively.

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“…In particular, py has a pyridine structure, for which the representative UV/VIS curves are shown in Figure 3a. Previous investigations have reported that the pyridine structure can exhibit the interaction of py–py stacking [28,43,44]. Thus, we acquired a UV-VIS absorption spectra for a mixture of bacteriophage, pyrrole, and CA prior to polymerization.…”

Section: Resultsmentioning

confidence: 99%

Detection of Acidic Pharmaceutical Compounds Using Virus-Based Molecularly Imprinted Polymers

et al. 2018

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Molecularly imprinted polymers (MIPs) have proven to be particularly effective chemical probes for the molecular recognition of proteins, DNA, and viruses. Here, we started from a filamentous bacteriophage to synthesize a multi-functionalized MIP for detecting the acidic pharmaceutic clofibric acid (CA) as a chemical pollutant. Adsorption and quartz crystal microbalance with dissipation monitoring experiments showed that the phage-functionalized MIP had a good binding affinity for CA, compared with the non-imprinted polymer and MIP. In addition, the reusability of the phage-functionalized MIP was demonstrated for at least five repeated cycles, without significant loss in the binding activity. The results indicate that the exposed amino acids of the phage, together with the polymer matrix, create functional binding cavities that provide higher affinity to acidic pharmaceutical compounds.

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Synthesis, Crystal Analysis, and Optoelectronic Properties of Diazole‐Functionalized Acenes and Azaacenes

Cited by 38 publications

References 80 publications

Optical Spectra and Fluorescence Quenching in Azaacenes Bearing Five‐Membered Rings

Optical Spectra and Fluorescence Quenching in Azaacenes Bearing Five‐Membered Rings

11,16‐Di‐tert‐butyl‐9,18‐diphenylbenzo[kl]benzo[8,9]triphenyleno [2,3‐b]xanthene: Synthesis, Photophysics, Self‐Assembly and Electroluminescent Properties

Detection of Acidic Pharmaceutical Compounds Using Virus-Based Molecularly Imprinted Polymers

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