- Mono-Heteroatom Substitution for Harnessing Excited-State Structural Planarization of Dihydrodibenzo[a,c]phenazines
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With the aim of generalizing the structure–properties relationship of bending heterocyclic molecules that undergo prominent photoinduced structural planarization (PISP), a series of new dihydrodibenzo[ac]phenazine derivatives in which one nitrogen atom is replaced by oxygen (PNO), sulfur (PNS), selenium (PNSe), or dimethylmethanediyl (PNC) was strategically designed and synthesized. Compounds PNO, PNS, and PNSe have significantly nonplanar geometries in the ground state, which undergo PISP to give a planarlike conformer and hence a large emission Stokes shift. A combination of femtosecond early relaxation dynamics and computational approaches established an R*→I* (intermediate)→P* sequential kinetic pattern for PNS and PNSe, whereas PNO undergoes R*→P* one-step kinetics. The polarization ability of the substituted heteroatoms, which is in the order OSSe, correlates with their increase in π conjugation, and hence the Stokes shift of the emission is in the order PNOPNSPNSe. Compound PNSe with the largest PISP barrier was shown to be a highly sensitive viscosity probe. Further evidence for heteroatom-harnessing PISP is given by PNC, in which the dimethylmethanediyl substituent lacks lone pair electrons for π extension, showing the normal emission of the bent structure. The results led to the conclusion that PISP is ubiquitous in dihydrodibenzo[ac]phenazines, for which the driving force is elongation of the π delocalization to gain stabilization in the excited state.
- Chen, Yi,Chen, Deng-Gao,Chen, Yi-An,Wu, Cheng-Ham,Chang, Kai-Hsin,Meng, Fan-Yi,Chen, Meng-Chi,Lin, Jia-An,Huang, Chun-Ying,Su, Jianhua,Tian, He,Chou, Pi-Tai
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- Nickel-Catalyzed Amination of Aryl Nitriles for Accessing Diarylamines through C?CN Bond Activation
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A nickel-catalyzed amination to access diarylamines has been developed through C?CN bond activation of aryl nitriles with anilines. In this developed catalytic protocol, various aromatic and heteroaromatic nitriles could be utilized as the electrophiles to couple with substituted anilines. A diversity of diarylamines were obtained in 15–95% yields. (Figure presented.).
- Wu, Ke,Rong, Qiang,Sun, Nan,Hu, Baoxiang,Shen, Zhenlu,Jin, Liqun,Hu, Xinquan
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supporting information
p. 4708 - 4713
(2021/08/27)
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- Organic compound, and electronic element and electronic device using same
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The invention relates to an organic compound. The structure of the organic compound is shown as a formula I. When the organic compound is used as a hole adjustment layer material of an electronic element, driving voltage can be reduced, the luminous efficiency of a device can be improved, and the service life of the device can be prolonged.
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Paragraph 0150-0152; 0155
(2021/07/14)
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- Nitrogen-containing compound, electronic component and electronic device
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The application belongs to the field of organic light-emitting materials, and relates to a nitrogen-containing compound, an electronic element and an electronic device. The nitrogen-containing compound has a structure represented by the following formula
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Paragraph 0154-0160
(2021/01/28)
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- Organic electroluminescent compound and preparation method thereof, and organic electroluminescent device
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The invention discloses an organic electroluminescent compound and a preparation method thereof, and an organic electroluminescent device, and belongs to the field of chemical synthesis and photoelectric materials, wherein the structural general formula of the organic electroluminescent compound is defined in the specification, and in a formula I, L is one selected from a chemical bond, substituted or unsubstituted C6-C30 aryl and substituted or unsubstituted C3-C30 heteroaryl, X is a heteroatom, and Ar1 and Ar2 are respectively and independently selected from substituted or unsubstituted C1-C30 alkyl, substituted or unsubstituted C6-C30 aryl, substituted or unsubstituted C3-C30 heteroaryl, substituted or unsubstituted C3-C30 arylamino, substituted or unsubstituted C3-C30 aliphatic amino and single ring or multi-ring formed by linking adjacent substituent groups. According to the invention, with the application of the organic electroluminescent compound as the material of the light-emitting auxiliary layer and/or hole transport layer of an organic electroluminescent device, the driving voltage of the organic electroluminescent device can be remarkably reduced, the light-emitting efficiency of the organic electroluminescent device is improved, and the service life of the organic electroluminescent device is prolonged.
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Paragraph 0049-0053
(2020/04/22)
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- Organic compound containing condensed ring structure and organic electroluminescent device
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The invention provides an organic compound containing a condensed ring structure as shown in a formula I which is described in the specification. The invention also provides an application of the organic compound in an electroluminescent device. Compared with organic compounds in the prior art, the organic compound containing the condensed ring structure has a narrower half-peak width of an emission peak, so that the organic compound has excellent color purity; when the organic compound containing the condensed ring structure is applied to an AMOLED top emission screen body, higher luminous efficiency can be achieved, and an organic light-emitting device can have lower driving voltage and longer service lifetime.
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Paragraph 0135-0138; 0193-0195
(2020/05/02)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention relates to a device for emitting light. Provided are a novel mixture capable of improving stability and longevity, an organic electronic element using the same, and an electronic device thereof. (by machine translation)
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Paragraph 0335; 0437-0443; 0444
(2020/08/28)
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- Benzophenanthroline derivative and application thereof
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The invention discloses a kind of benzophenanthroline derivative and application thereof in preparation in the field of organic electroluminescent display and illumination technology. The invention also provides an organic electroluminescent device, which comprises the benzophenanthroline derivative. Compared with an existing organic electroluminescent device, the organic electroluminescent deviceof the invention has better luminous performance, can be driven by a lower voltage, and has lower power consumption and longer service life.
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Paragraph 0083-0087; 0120-0123
(2019/01/23)
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- O-quinoline derivative and application thereof
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The invention discloses an o-quinoline derivative, application thereof and an organic light-emitting device. The o-quinoline derivative is of a structure shown in the general formula (1) (the formulacan be seen in the description). The o-quinoline derivative is applied into the organic light-emitting device and can reduce the driving voltage, improve the current efficiency and prolong the deviceservice life.
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Paragraph 00; 005; 0116; 0117; 0118
(2019/01/23)
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- Quinoline derivative, application of quinoline derivative and organic electroluminescence device
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The invention relates to a quinoline derivative, application of the quinoline derivative and an organic electroluminescence device. The quinolone derivative has a structure represented as the formula(1-1) or (1-2). The quinoline derivative is applied to theorganic electroluminescence device, the driving voltage can be reduced, the current efficiency is improved, and the life of the organic electroluminescence device is prolonged.
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Paragraph 0086; 0087; 0088; 0089; 0122; 0123; 0124; 0125
(2019/01/23)
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- Fluorenofluorene-containing compound and organic electroluminescence device thereof
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The invention provides a fluorenofluorene-containing compound and an organic electroluminescence device thereof and relates to the technical field of organic photoelectric materials. A fluorene-fluorene main body is connected with arylamine and a substituted or non-substituted fused imidazole derivative to obtain the fluorenofluorene-containing compound. The compound is a bipolar transmission material, is favorable for compounding holes and electrons in a luminescent layer, has good stability and luminescent efficiency, is simple in synthesis and easy to operate, can be applied to the organicelectroluminescence device to serve as a doping material of the luminescent layer, and can effectively solve the problems of low luminescent efficiency and short service life of a blue luminescent material in the organic electroluminescence device. The organic electroluminescence device provided by the invention has the advantages of high luminescent efficiency and long service life.
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Paragraph 0072; 0077
(2018/10/19)
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- Benzo-phenanthroline derivative and application thereof
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The invention discloses a benzo-phenanthroline derivative and application thereof in the technical field of preparing organic light-emitting-diode displays and illuminating. The invention further provides an organic light-emitting device. The device comprises the benzo-phenanthroline derivative. Compared with the conventional organic light-emitting device, the organic light-emitting device disclosed by the invention has the advantages of better light emitting performance, lower voltage drive, lower electric consumption and longer life.
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Paragraph 0073; 0074; 0075; 0132; 0133; 0134; 0135
(2018/11/22)
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- Fluorene naphthofuran derivative and application thereof
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The invention provides a compound shown in the general formula (1), wherein A-A are respectively and independently selected from Ar, N(Ar)(Ar), hydrogen, F, Cl, Br, I, CHO, C(=O)Ar, P(=O)(Ar)2, S(=O)Ar, S(=o)2Ar, CN, NO2, Si(R)3, C1-C30 substituted or unsubstituted alkyl groups or naphthenic groups, alkenyl groups and alkoxy or thioalkoxy groups; at least one of A-A is selectedfrom Ar or N(Ar1)(Ar2); when two adjacent substituent groups in the A-A are independently selected from Ar or N(Ar1)(Ar2), the two substituent groups can be fused into a ring; Ar, Ar and Ar are respectively and independently selected from C6-C30 substituted or unsubstituted aryl groups or are C5-C30 substituted or unsubstituted heteroaryl groups; substituent groups on the aryl or heteroaryl groups are independently selected from F, Cl, Br, I, CHO, CN and NO2 or selected from C1-C30 alkyl groups or naphthenic groups, alkenyl groups and alkoxy or thioalkoxy groups.
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Paragraph 0062-0064; 0085
(2018/07/06)
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- Carbazole derivative, and preparation method and organic electroluminescent device thereof
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The invention provides a carbazole derivative, and a preparation method and an organic electroluminescent device thereof. The carbazole derivative is characterized in that a substituent group is improved based on an asymmetric carbazole derivative in orde
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Paragraph 0151; 0152; 0153; 0154
(2016/10/10)
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- Compound pyrene has and its preparation method, the organic electroluminescent device (by machine translation)
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The present invention provides a method for preparing the same composition and pyrene, organic electroluminescent device, the compound pyrene has formula (I) is shown. Compared with the prior art, the present invention provides the compound pyrene derivatives [...] N in the introduction, or O and S Ar 1-Ar 5 of pyrene three-dimensional structure is formed, at the same time can be adjusted through the introduction of the group wavelength of the compound, so as to improve the formula (I) luminescence of compound shown in the organic electroluminescent device of the light-emitting efficiency and the life-SPAN of the device. (by machine translation)
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Paragraph 0094; 0095; 0096
(2016/10/31)
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- A and quinoline derivatives thereof in organic electroluminescent the application in the field of
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The invention relates to a compounded quindoline derivative as shown in the formula (1), wherein Ar1 and Ar2 are respectively independently selected from C6-C40 substituted or unsubstituted aromatic groups, or can be connected to form C3-C40 substituted or unsubstituted fused aromatic groups. The invention also relates to an application of the compound in organic electroluminescence devices, especially to an application of the compound used as a luminescence host material of OLED devices.
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Paragraph 0053; 0054; 0185; 0186; 0187
(2016/10/07)
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- Organic Compound and Organic Light Emitting Diode Devices using the same
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The present invention relates to an organic compound and an organic light emitting diode device using same. The organic compound is selected from an aromatic ring compound, which is represented by Chemical formula wherein R is a substituted or unsubsituted alkyl group having C_1 to C_12; and A and B are symmetrically or asymmetrically bound to a 2-position and a 7-position of a fullerene core and are independently substituted or unsubstituted, and a heterogeneous ring compound. According to the present invention, efficiency of the organic light diode device can be increased; and driving voltages for the organic light diode device can be reduced.COPYRIGHT KIPO 2015
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Paragraph 0180-0184
(2016/11/17)
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- STYRYL-BASED COMPOUND, COMPOSITION CONTAINING STYRYL-BASED COMPOUND, AND ORGANIC LIGHT EMITTING DIODE INCLUDING STYRYL-BASED COMPOUND
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A styryl-based compound represented by Formula 1, a composition containing the styryl-based compound, and an organic light-emitting diode (OLED) including the styryl-based compound: The styryl-based compound may exhibit high heat resistance and thus an OL
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Paragraph 0146; 0147
(2013/05/22)
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- HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DIODE INCLUDING THE SAME
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A heterocyclic compound represented by Formula 1A below and an organic light-emitting diode including the same: at least one of R1 to R7 is a group represented by Formula 1B below. in Formulae 1A and 1B, R1 to R9, Ar1, Ar2, A, B, a and b are the same as described in the detailed description section of the present application. The organic light-emitting diode including an organic layer including the heterocyclic compound has a low driving voltage, high luminescence efficiency, and a long lifetime.
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Paragraph 0125; 0126; 0187; 0188
(2013/05/21)
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- Reactions of Spiro
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Methylenefluorene 3a adds regiospecifically to aryl azides 4 to give the corresponding spiro 5, which lead to the ring-enlargement products, 9-(arylamino)phenanthrenes (9), by pyrolysis and acid-induced reaction.Benzylidenefluorene 3b
- Hirakawa, Kiyoichi,Tanabiki, Yukio
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p. 280 - 284
(2007/10/02)
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- Electrochemical Reduction of Di-Schiff Bases. Synthesis of Piperazines, Indoloindoles, Diazepines, and Diazocines
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The electrochemical reduction of a series of di-Schiff bases had led to examples where products representing reduction, cyclization, and transannular cyclization are found.Useful synthetic pathways for piperazines, indoloindoles, diazepines, and diazocines are described.
- Koch, Russell W.,Dessy, Raymond E.
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p. 4452 - 4459
(2007/10/02)
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