1000-84-6Relevant articles and documents
Synthesis, electronic structure, linear and nonlinear photophysical properties of novel asymmetric branched compounds
Cai, Zhi-Bin,Chen, Li-Jun,Li, Sheng-Li,Ye, Qing,Tian, Yu-Peng
, (2020)
A series of novel asymmetric branched compounds that utilize a 1,3,5-triazine core and feature D-π-A-(π-D′-π-A′)0-2 configurations (D = donor, A = acceptor, π = conjugated bridge) were designed, successfully synthesized, and fully characterized by 1H NMR, 13C NMR, FT-IR, and HRMS. Their photophysical properties including linear absorption, one-photon excited fluorescence, two-photon absorption, and frequency up-converted fluorescence, were systematically investigated in different solvents. With a rise in the polarity of solvents, the peak positions of the one-photon excited fluorescence are red-shifted and the Stokes shifts increase, while the linear absorption wavelengths change slightly. In addition, the target compounds except CZ show the positive solvatokinetic effect. With a rise in the number of branches, the red shifts of the absorption and emission maxima, the hyperchromicity of the molar absorption coefficients, and the decrease of the Stokes shifts are observed. The peripheral electron donors (carbazole, phenothiazine) and acceptors (pyridine, benzimidazole) also exert an important influence on the photophysical properties. Under excitation of 690–930 nm fs laser pulses, all the target compounds emit frequency up-converted fluorescence with the maximal peaks at 471–575 nm, and the two-photon absorption cross-sections in THF are 132 (PTZ), 182 (CZ), 453 (CZ-Py1), 844 (CZ-Py2), 1244 (CZ-BI1), and 2072 (CZ-BI2) GM, respectively. Their two-photon response is found to be nearly additive with respect to the number of branches. The time-dependent density functional theory calculations were conducted to gain an insight into their electronic structures and to better understand the structure-photophysical property relationships. The results clearly indicate the importance of appropriate structural units on the enhancement of two-photon absorption properties.
Multiple fluorescence ΔcIE and ΔrGB codes for sensing volatile organic compounds with a wide range of responses
Tian, Kaijun,Hu, Dehui,Hu, Rui,Wang, Shuangqing,Li, Shayu,Li, Yi,Yang, Guoqiang
, p. 10052 - 10054 (2011)
A highly luminescent compound, stilbene-2,4-dimethyl-6-(1,2,2,4- tetramethyl-1,2-dihydroquinolin-6-yl)-1,3,5-s-triazine (MQT), exhibits solvent polarity-induced emission enhancement. A fluorescent sensor array was fabricated with MQT and porous polymer substrates. The colorimetric changes of the array exposed to VOCs can be readily distinguished by the naked eye. Post-processing procedures proved the high selectivity of the array for VOCs. The Royal Society of Chemistry 2011.
Continuous detection of HCl and NH3 gases with a high-performance fluorescent polymer sensor
Xu, Ning,Wang, Rui-Lei,Li, Dong-Peng,Zhou, Zi-Yan,Zhang, Tian,Xie, Yu-Zhong,Su, Zhong-Min
, p. 13367 - 13374 (2018)
A novel fluorescent triazine-based covalent organic polymer (COP-1) sensor for HCl and NH3 gases has been designed and synthesized. Both the COP-1 powders that were dispersed in solvents and the COP-1 film that was formed on the surface of quartz sheets exhibited stable fluorescence and a sensitive HCl/NH3 response. Immersion in HCl-bubbled solvents weakens and red-shifts the fluorescence emission of the COP-1 powders, owing to a protonation-induced charge transfer (CT). Subsequent injection of NH3 into the solvents recovers the fluorescence via deprotonation. Interestingly, the microporous COP-1 film also shows a similar fluorescence response to HCl/NH3 gas, with high sensitivity and good reversibility, which suggests that it could serve as a solid-state optical probe for continuous and quantitative detection of HCl and NH3 gases. The formation of the red-shifting hydrogen bonds is found to be the origin of the response.
A METHOD OF PREPARING 5-ALKYLTETRAZOLE
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Paragraph 0069-0070; 0074-0075, (2018/05/03)
The present invention relates to a method of preparing 5-alkyltetrazole which comprises the following steps: a) reacting alkyl imidate represented by chemical formula 1 with a1) hydrazine to obtain a compound represented by chemical formula 2; a2) reacting the compound represented by the chemical formula 2 with a nitrite compound and acid, to obtain a reaction mixture; and b) reacting the reaction mixture with a base to obtain 5-alkyltetrazole represented by chemical formula 3.COPYRIGHT KIPO 2018
A chemical precursor for depositing Sb2S3 onto mesoporous TiO2 layers in nonaqueous media and its application to solar cells
Maiti, Nilkamal,Im, Sang Hyuk,Lim, Choong-Sun,Seok, Sang Il
, p. 11569 - 11572 (2013/02/23)
Deposition of nanocrystalline Sb2S3 onto a mesoporous TiO2 photoanode is an important process in the fabrication of Sb2S3-sensitized solar cells. In order to generate oxide-free nanosized Sb2S3, a single-source precursor for the chemical bath deposition of Sb2S3 in nonaqueous media, Sb(iii)(thioacetamide)2Cl3, was synthesized and used to produce high-quality Sb2S3 for solar cells.
Synthesis, tunable two and three-photon absorption properties of triazine derivatives by branches
Zeng, Shuiming,Ouyang, Xinhua,Zeng, Heping,Ji, Wei,Ge, Ziyi
scheme or table, p. 290 - 295 (2012/05/05)
Three novel triazine derivatives, (E)-4-(2-(4,6-dimethyl-1,3,5-triazin-2- yl)vinyl)- N,N-di-p-tolylaniline (a), 4,4′-((1E,1′E)-(6-methyl-1,3, 5-triazine-2,4-diyl) bis(ethene-2,1-diyl))bis(N,N-di-p-tolylaniline) (b), and 4,4′,4′′-((1E,1′E,1′′E)-(1,3,5- tri
Combinatorial synthesis of 3,5-Dimethylene substituted 1,2,4-Triazoles
Woodard, Scott S.,Jerome, Kevin D.
experimental part, p. 132 - 137 (2012/04/18)
Combinatorial cyclizations of imidates and hydrazides with methylene linked R groups, generated from the corresponding nitriles and carboxylic acids, respectively, provided a large library of 3,5-dimethylene substituted 1,2,4- trizoles. 2011 Bentham Science Publishers Ltd.
SUBSTITUTED IMIDAZOLONE DERIVATIVES, PREPARATIONS AND USES
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Page/Page column 37-38, (2010/02/16)
The present invention relates to polysubstituted imidazolone derivatives, to the pharmaceutical compositions comprising them and to the therapeutic uses thereof in the human and animal health fields. The present invention also relates to a process for preparing these derivatives.
PYRAZOLO`1,5-A!`1,3,5! TRIAZIN -4-ONE DERIVATIVES AS CB1 RECEPTOR ANTAGONISTS
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Page/Page column 47, (2010/02/12)
Compounds of Formula (I) are described herein. The compounds have been shown to act as cannabinoid receptor ligands and are therefore useful in the treatment of diseases linked to the mediation of the cannabinoid receptors in animals.
Cannabinoid receptor ligands and uses thereof
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Page 24, (2010/02/08)
Compounds of Formula (I) that act as cannabinoid receptor ligands and their uses in the treatment of diseases linked to the mediation of the cannabinoid receptors in animals are described herein.