601454-29-9Relevant academic research and scientific papers
Dendritic molecular organic fluorescent material, application thereof, fluorescent film and preparation method of fluorescent film
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, (2019/08/12)
The invention provides a dendritic molecular organic fluorescent material, application thereof, a fluorescent film and a preparation method and application of the fluorescent film, and belongs to thefield of fluorescence sensing. The dendritic molecular organic fluorescent material provided by the invention has a structure shown as a formula I, wherein a unit A is used as a central core of a dendritic molecule; a unit B is a branched unit of the dendritic molecule; and a unit C is a peripheral active group of the dendritic molecule and has electrochemical activity. The dendritic molecular organic fluorescent material provided by the invention is accurate in molecular structure and good in repeatability, and has fluorescent response and colorimetric response to iodide ions, mercury ions and ferric ions at the same time; and according to the dendritic molecular organic fluorescent material and the fluorescent film prepared from the dendritic molecular organic fluorescent material provided by the invention, fluorescence/colorimetric dual-channel detection of iodide ions, mercury ions and ferric ions can be realized, the detection precision is high, and errors are small.
Synthesis, crystal structures, and nonlinear optic and thermal properties of two diiodocarbazole derivatives
Tang, Gui-Mei,Chi, Rui-Hai,Wan, Wen-Zhu,Wang, Yong-Tao,Cui, Yue-Zhi,Ng, Seik Weng
, p. 79 - 81 (2017/03/15)
Two 3,6-diiodocarbazole derivatives were prepared from the iodination of the corresponding phenylcarbazole. 3,6-Diiodo-9-phenylcarbazole crystallises in the chiral space group P21 and shows good second-harmonic generation effects. Thermogravime
Crystal structure for 3,6-diiodo-N-(4-bromophenyl)carbazole and application thereof
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Paragraph 0015; 0016, (2017/07/23)
The invention discloses a crystal structure for 3,6-diiodo-N-(4-bromophenyl)carbazole and an application thereof, belonging to the field of photoelectric materials. The preparation method for the crystal with the crystal structure comprises the following steps: weighing 0.1 gram of the 3,6-diiodo-N-(4-bromophenyl)carbazole, dissolving the 3,6-diiodo-N-(4-bromophenyl)carbazole in 5 ml of chloroform, carrying out filtering, and carrying out standing for 3 days so as to obtain a bulk pink crystal, wherein the crystal structure of the bulk pink crystal belongs to a monoclinic system and a space group of P2/c, and has cell parameters as described in the specification. The compound provided by the invention is an intermediate of an excellent photoelectric material.
QUINOXALINE DERIVATIVE COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Paragraph 0065; 0067-0069, (2017/04/14)
The present invention relates to a quinoxaline derivative compound and an organic electroluminescent device using the same and, more specifically, relates to a quinoxaline derivative compound having a specific structure comprising quinoxaline as an electron acceptor molecule, and to an organic electroluminescent device using the same. The quinoxaline derivative compound has excellent light-emitting properties, the light-emitting efficiency, durability, thermal and electrical stability, and low driving voltage, when being used as a host (particularly Red host) material of an organic electroluminescent device light-emitting layer.
Starburst dendrimers consisting of triphenylamine core and 9-phenylcarbazole-based dendrons: Synthesis and properties
You, Jia,Li, Guiyang,Wang, Zhonggang
, p. 9481 - 9490 (2013/01/15)
Novel dendrimers consisting of a triphenylamine core and 1st to 3rd generations of 9-phenylcarbazole-based dendrons were synthesized by Suzuki coupling reaction through convergent approach. Their structures were confirmed by two-dimensional correlated H-H COSY and C-H HSQC NMR spectra, MALDI-TOF MS and elemental analysis. The dendrimers exhibit excellent thermal stability with 5% weight loss temperatures over 540 °C. The computer modeling reveals that the dendrons in dendrimers greatly twisted with the generation, leading to the dendrimers decreased crystalline ability. Of interest is the observation that, for an identical dendrimer, the solid film displays the similar UV absorption and luminescence emission profiles to the solution sample, indicating that, after evaporation of solvent, the rigid dendrimer can well maintain its conformational morphology and the aggregation or stacking of the chromophoric groups is significantly inhibited. All the dendrimers can emit intense fluorescence with narrow full width at half maximum (FWHM) around 46-50 nm. Moreover, with the incremental generation, the quantum efficiencies remarkably increase from 64 to 95%, suggesting that the highly contorted and bulky dendrons effectively decrease energy wastage and non-radiative decay. The synergistic effect of electron-donating triphenylamine core and 9-phenylcarbazole-based dendrons results in the HOMO energy level of -5.36 eV for the 3rd-generation dendrimer, very close to the work function of the ITO/PEDOT electrode (-5.2 eV), which characteristic is very advantageous for the hole injection and transport materials.
Solution-processable stiff dendrimers: Synthesis, photophysics, film morphology, and electroluminescence
Zhao, Zujin,Li, Juo-Hao,Chen, Xiaopeng,Wang, Xiaoming,Lu, Ping,Yang, Yang
scheme or table, p. 383 - 395 (2009/04/10)
(Figure Presented) A series of solution-processable conjugated dendrimers (T1-T5) consisting of a pyrene core, fluorene/carbazole dendrons, and acetylene linkages have been successfully synthesized and fully characterized. The effects of generation on the
Synthesis and characterization of deep blue emitters from starburst carbazole/fluorene compounds
Zhao, Zujin,Xu, Xinjun,Chen, Xiaopeng,Wang, Xiaoming,Lu, Ping,Yu, Gui,Liu, Yunqi
, p. 2658 - 2668 (2008/09/19)
A series of well-defined, highly fluorescent starburst compounds with a carbazole core and oligo(2,7-fluorene ethynylene) arms have been synthesized by Sonogashira coupling reaction and fully characterized. These conjugated compounds exhibit good solubility, high thermal stability, and excellent fluorescence quantum yields (up to 0.99). The incorporation of carbazole core interrupted the main-chain conjugation and resulted in blue-shifted absorption and emission. Moreover, deep blue light has been approached from organic light-emitting diodes (OLEDs) adopting these compounds as emitting layer.
Synthesis and functional properties of star-burst dendrimers that contain carbazole as peripheral edges and triazine as a central core
Xiong, Mo Jun,Li, Zhong Hui,Wong, Man Shing
, p. 603 - 607 (2008/03/12)
With the aim of combining the electron and hole-transporting moieties into one molecule and to continue our investigation into the structure?property correlations of dendrimers, two novel star-burst dendrimers 1 and 2 constructed with carbazoles as the peripheral hole-transporting moieties and one triazine moiety as an electron-transporting central core, have been synthesized. The convergent synthetic approach uses palladium-catalyzed Suzuki cross-coupling as a key reaction. Their functional properties have also been investigated. CSIRO 2007.
Novel hole-transporting materials based on 1,4-bis(carbazolyl)benzene for organic light-emitting devices
Zhang, Qian,Chen, Jiangshan,Cheng, Yanxiang,Wang, Lixiang,Ma, Dongge,Jing, Xiabin,Wang, Fosong
, p. 895 - 900 (2007/10/03)
Novel hole-transporting molecules containing 1,4-bis(carbazolyl)benzene as a central unit and different numbers of diphenylamine moieties as the peripheral groups have been synthesized and characterized. These compounds are thermally stable with high glass transition temperatures of 141-157°C and exhibit chemically reversible redox processes. Their amorphous state stability and hole transport properties can be significantly improved by increasing the number of diphenylamine moieties in the outer part and by controlling the symmetry of the carbazole-based molecules. These compounds can be used as good hole-transporting materials for organic electroluminescent (EL) devices. The device performance based on tri- and tetra-substituted carbazole derivatives is comparable to that of a typical 4,4′-bis[N-(1-naphthyl)-N-phenylamino] biphenyl (NPB)-based device.
