32081-16-6Relevant academic research and scientific papers
Spontaneous assembly of a hydrogen-bonded tetrahedron
Field, Jason E.,Combariza, Marianny Y.,Vachet, Richard W.,Venkataraman
, p. 2260 - 2261 (2002)
Triphenylamine ortho-tricarboxylic acid (1) has been synthesized and the crystal structure reported. This molecule is shown to spontaneously self-assemble into a hydrogen-bonded tetrahedron. Furthermore, Electrospray Ionization Mass Spectroscopy shows evi
A Fluorescent Chemosensor for Zn2+ Based on a C 3-Symmetrical and Pre-Organized 2,2′,2″-Nitrilotribenzoic Acid Material
Wei, Wenguang,Jin, Yao,Han, Tao,Du, Bin,Zhi, Xiujuan,Wei, Chaojun,Yuan, Sichun
, p. 890 - 901 (2018)
A C3-symmetrical 4,4″,4-nitrilotris(2′-methyl-[1,1′-biphenyl]-3-carboxylic acid) (4) derived from nitrilotriacetic acid (NTA) was found to selectively bind Zinc(ii) ions both in DMSO or MeOH. A synergistic effect of the anionic counter ion SO42- on the sensing behaviour of 4 to metal ions was clearly observed in DMSO. Interestingly, 4 showed a rapid hypochromatic shift in emission ascribed to the deprotonation and the concomitant formation of a 4-metal complex upon the addition of Zn2+ ions, instead of the bathochromic shift and emission enhancement attributed to the SO42--involved hydrogen-bonding interaction for Ni2+, Li+, Mg2+, and Na+ ions at ratios below 1:1 in DMSO. The observed sensing process of sulfate salts associated with the SO42--involved hydrogen-bonding interaction, deprotonation, and the concomitant complexation can also be clearly monitored by titration methods utilising UV-vis, fluorescence, and NMR spectroscopy in solution. In comparison with 4, compound 1 showed an obvious difference in the binding interaction with zinc sulfate in MeOH, probably owing to the decreased acidity. Anion-induced hydrogen-bonding interactions and deprotonation of the COOH protons in the excited state also endowed 4 versatile spectroscopic properties. The addition of F- and SO42- anions resulted in a remarkable enhancement probably related with a rigidifying effect. 2,2′,2″-Nitrilotribenzoic acid can be utilised as a potential scaffold to build a series of conjugated fluorescent sensors by its chelation effect owing to the rigid cavity pre-organised by the triphenylamine moiety and the carboxylic groups and the conjugation extension in the 4,4′,4″ positions.
A polycyclic aromatic compound and its application in electroluminescent devices
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Paragraph 0114-0115; 0118, (2022/01/20)
The present invention relates to a polycyclic aromatic compound, in particular to a triaryl amine series derivative having a bridge structure and its applications. The compound has a structure shown in formula I or II. When the compounds of the present invention is used as a luminescent layer material in an organic electroluminescent device, the luminous efficiency of the device can be effectively improved, the spectral color purity of the device can be improved, and the best technical effect of the brightness of the device luminescence half peak width and narrowness can be obtained.
Polycyclic compound nitrogen-containing compound and electronic device
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Paragraph 0141; 0146-0149, (2020/09/12)
The invention provides a polycyclic nitrogen-containing compound and an electronic device, and relates to the technical field of organic photoelectric materials. According to the invention, a rigid structure of a polycyclic nitrogen-containing compound is introduced; the obtained polycyclic nitrogen-containing compound can effectively inhibit vibration relaxation caused by vibration and rotation of molecules, so that the polycyclic nitrogen-containing compound has a relatively narrow luminescence peak, excellent film-forming property and thermal stability and relatively high fluorescence quantum yield, and can be used for preparing an organic electroluminescent device, an organic field effect transistor and an organic solar cell. In addition, the polycyclic nitrogen-containing compound canbe used as a constituent material of a hole injection layer, a hole transport layer, a light-emitting layer, an electron blocking layer, a hole blocking layer or an electron transport layer, and canreduce driving voltage, improve efficiency, brightness and color purity, prolong the service life and the like. In addition, the preparation method of the polycyclic nitrogen-containing compound is simple, raw materials are easy to obtain, and industrial development requirements can be met.
Aggregation-state luminescent material with high efficiency and narrow half-peak width
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Paragraph 0045-0046; 0050-0051, (2020/07/13)
The invention discloses a novel aggregation-state luminescent material with high efficiency and narrow half-peak width, namely an azatriene derivative, a preparation method of the azatriene derivativeand application of the azatriene derivative in an elect
Crystal Engineering of Room Temperature Phosphorescence in Organic Solids
Hamzehpoor, Ehsan,Perepichka, Dmitrii F.
supporting information, p. 9977 - 9981 (2019/12/12)
We report a series of highly emissive azatriangulenetrione (TANGO) solids in which the luminescent properties are controlled by engineering the molecular packing by adjusting the steric size of substituents. The co-alignment of “phosphorogenic” carbonyl groups within the π-stacks results in an almost pure triplet emission in HTANGO, TCTANGO, TBTANGO and TITANGO, while their rotation by ≈60° in the sterically hindered tBuTANGO leads to an almost pure singlet emission. Despite strong π-interactions, aggregation-induced quenching and triplet–triplet annihilation are avoided in HTANGO and TCTANGO which display efficient phosphorescence in the solid state. To our knowledge, HTANGO with the solid-state phosphorescence quantum yield of 42 % at room temperature is the most efficient phosphor composed of the 1st/2nd raw elements only.
Heterotriangulene as an electron-transfer mediator in reduction of vic-dibromide compounds
Inagi, Shinsuke,Kaihatsu, Noriyuki,Kuribayashi, Shunsuke,Fuchigami, Toshio
, p. 846 - 848 (2013/09/02)
A novel heterotriangulene derivative and its nonfused analogue were successfully prepared, and their electrochemical and optical properties were studied by cyclic voltammetry measurements and UVvis and photoluminescence analyses. The mediatory use of the heterotriangulene derivative for the electrocatalytic reduction of dibromo compounds was also investigated.
