- ORGANIC COMPOUNDS, LIGHE EMITTING DIODE AND LIGHT EMITTING DEVICE HAVING THE COMPOUNDS
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The present invention relates to an organic compound having an amine core substituted with three aromatic rings, wherein a part of the three aromatic rings is substituted with a functional group capable of a solution process while the rest of the three aromatic rings is substituted with a hetero-aromatic functional group; and a light-emitting diode and a light-emitting device having the organic compound applied to a light-emitting layer. The organic compound may be used to the light-emitting layer to eliminate the HOMO energy barrier between the light-emitting layer and another light-emitting layer adjacent thereto. Also, the organic compound, when it forms a light-emitting layer in combination with light-emitting particles, may improve interfacial properties between the light-emitting layer and an adjacent layer to improve morphological properties of the light-emitting diode. The organic compound of the present invention, by allowing holes and electrons to be transported and implanted into a light emitting material layer in a balanced manner, may implement light-emitting diodes and light-emitting devices with improved luminance efficiency and capable of low-voltage driving.(110) First electrode(120) Second electrode(AA) Smooth interface morphology ↑COPYRIGHT KIPO 2019
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Paragraph 0168-0171
(2019/08/06)
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- Method of adopting C-N coupling reaction to prepare dialkyl diphenylamine
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The invention discloses a method of adopting C-N coupling reaction to prepare dialkyl diphenylamine antioxidation additive and belongs to the field of lubricating oil. The method includes: mainly taking bromoalkylbenzene and alkylaniline as raw materials
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Paragraph 0015; 0016
(2018/12/03)
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- Versatile routes for synthesis of diarylamines through acceptorless dehydrogenative aromatization catalysis over supported gold-palladium bimetallic nanoparticles
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Diarylamines are an important class of widely utilized chemicals, and development of diverse procedures for their synthesis is of great importance. Herein, we have successfully developed novel versatile catalytic procedures for the synthesis of diarylamines through acceptorless dehydrogenative aromatization. In the presence of a gold-palladium alloy nanoparticle catalyst (Au-Pd/TiO2), various symmetrically substituted diarylamines could be synthesized starting from cyclohexylamines. The observed catalysis of Au-Pd/TiO2 was heterogeneous in nature and Au-Pd/TiO2 could be reused several times without severe loss of catalytic performance. This transformation needs no oxidants and generates molecular hydrogen (three equivalents with respect to cyclohexylamines) and ammonia as the side products. These features highlight the environmentally benign nature of the present transformation. Furthermore, in the presence of Au-Pd/TiO2, various kinds of structurally diverse unsymmetrically substituted diarylamines could successfully be synthesized starting from various combinations of substrates such as (i) anilines and cyclohexanones, (ii) cyclohexylamines and cyclohexanones, and (iii) nitrobenzenes and cyclohexanols. The role of the catalyst and the reaction pathways were investigated in detail for the transformation of cyclohexylamines. The catalytic performance was strongly influenced by the nature of the catalyst. In the presence of a supported gold nanoparticle catalyst (Au/TiO2), the desired diarylamines were hardly produced. Although a supported palladium nanoparticle catalyst (Pd/TiO2) gave the desired diarylamines, the catalytic activity was inferior to that of Au-Pd/TiO2. Moreover, the activity of Au-Pd/TiO2 was superior to that of a physical mixture of Au/TiO2 and Pd/TiO2. The present Au-Pd/TiO2-catalyzed transformation of cyclohexylamines proceeds through complex pathways comprising amine dehydrogenation, imine disproportionation, and condensation reactions. The amine dehydrogenation and imine disproportionation reactions are effectively promoted by palladium (not by gold), and the intrinsic catalytic performance of palladium is significantly improved by alloying with gold. One possible explanation of the alloying effect is the formation of electron-poor palladium species that can effectively promote the β-H elimination step in the rate-limiting amine dehydrogenation.
- Taniguchi, Kento,Jin, Xiongjie,Yamaguchi, Kazuya,Nozaki, Kyoko,Mizuno, Noritaka
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p. 2131 - 2142
(2017/03/09)
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- NOVEL COMPOUND AND DYE-SENSITIZED PHOTOELECTRIC CONVERSION ELEMENT USING THE SAME
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PROBLEM TO BE SOLVED: To develop a compound having a specific structure, a photoelectric conversion element using semiconductor fine particles sensitized with the compound, and a solar cell. SOLUTION: The compound is represented by formula (1) (where m re
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Paragraph 0088; 0089
(2017/03/08)
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- Tuning the intramolecular charge transfer emission from deep blue to green in ambipolar systems based on dibenzothiophene S, S -dioxide by manipulation of conjugation and strength of the electron donor units
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The efficient synthesis and photophysical properties of a series of ambipolar donor-acceptor-donor systems is described where the acceptor is dibenzothiophene S,S-dioxide and the donor is fluorene, carbazole, or arylamine. The systems exhibit intramolecular charge transfer (ICT) states (of variable ICT character strengths) leading to fluorescence emission ranging from deep blue to green with moderate to high photoluminescence quantum yields. The emission properties can be effectively tuned by systematically changing the position of substitution on both donor and acceptor units (which affects the extent of conjugation) and the redox potentials of the donor units. The results are supported by cyclic voltammetric data and TD-DFT calculations.
- Moss, Kathryn C.,Bourdakos, Konstantinos N.,Bhalla, Vandana,Kamtekar, Kiran T.,Bryce, Martin R.,Fox, Mark A.,Vaughan, Helen L.,Dias, Fernando B.,Monkman, Andrew P.
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supporting information; experimental part
p. 6771 - 6781
(2010/12/18)
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- Asymmetric arylamine compounds and processes for making the same
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Novel asymmetric arylamine compounds useful as hole transport molecules (HTMs) incorporated into imaging members, such as layered photoreceptor devices, and improved chemical processes for making the same. The arylamine compounds increase the charge mobil
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