74808-63-2Relevant academic research and scientific papers
Triazonine-based bistable photoswitches: synthesis, characterization and photochromic properties
Bogliotti, Nicolas,Casimiro, Lorenzo,Delattre, Vincent,Goual, Nawel,Métivier, Rémi,Maisonneuve, Stéphane,Marinetti, Angela,Retailleau, Pascal,Voituriez, Arnaud,Xie, Juan
supporting information, p. 10079 - 10082 (2021/10/06)
We disclose here dibenzotriazonines as a new class of nine-membered cyclic azobenzenes displaying a nitrogen function in the saturated ring chain. The specific features of these compounds are (i) a preferredE-configuration, (ii) high bi-directional photos
Novel nitrogen-containing tetradentate ligand and intermediate and preparation methods thereof
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Paragraph 0047-0049, (2020/08/22)
The invention provides a novel nitrogen-containing tetradentate ligand and an intermediate, and preparation methods thereof. The intermediate of a ligand compound has a structure as shown in a formulaT which is described in the specification. The invention provides the intermediate of a novel organic complex, and the novel actinide metal nitrogen-containing tetradentate ligand can be prepared byusing the intermediate as a raw material. According to the invention, synthesis steps are simple, and post-treatment is easy; and the tetradentate ligand can be extensively applied to the fields of micromolecular activation, molecular catalysis, metal-metal bonds and the like.
Rational Design of a Tripodal Ligand for U(IV): Synthesis and Characterization of a U-Cl Species and Insights into Its Reactivity
Chai, Zhi-Fang,Hu, Kong-Qiu,Kong, Xiang-He,Liu, Kang,Mei, Lei,Shi, Wei-Qun,Tao, Xue-Bing,Wu, Qun-Yan,Yu, Ji-Pan,Yuan, Li-Yong
, p. 4069 - 4077 (2020/12/01)
The rational design and synthesis of the Trapen ligand (1, tris(2-aminobenzyl)amine) with a tripodal scaffold is reported. Treatment of Trapen with n-BuLi and TMSCl results in the formation of the corresponding complex [(TrapenTMS)(Li)3] (2). In particular, 2 reacts with UCl4 to give the important synthon uranium(IV) complex [U(TrapenTMS)(Cl)] (3) with all of the nitrogen atoms bound to the uranium(IV) center. Moreover, the pseudohalogen congener [U(TrapenTMS)(OCP)] (4) or the azide analogue [U(TrapenTMS)(N3)] (5) could be obtained when [U(TrapenTMS)(Cl)] (3) was treated with NaOCP(dioxane)2.5 or NaN3 by a salt metathesis approach. In addition, the reaction of KC8 with [U(TrapenTMS)(Cl)] (3) did not afford the desired U(III) complex but produced the unexpected bridging diuranium oxo complex [U(TrapenTMS)2(μ-O)] (6). All of the compounds were isolated in the solid state and characterized by NMR, X-ray crystal diffraction, and FT-IR, and UV-vis-NIR as well as elemental analyses and SQUID magnetization measurements. The combined experimental analyses and chemical calculations support all of the formal uranium(IV) species.
Reactions of tetraazamacrocyclic FEIII complexes with hydrogen peroxide - Putative catalase mimics?
Autzen, Sabrina,Korth, Hans-Gert,De Groot, Herbert,Sustmann, Reiner
, p. 3119 - 3125 (2007/10/03)
Iron(III) complexes of macrocyclic tetraaza ligands [Fe(III)-1-Fe(III)-3] were investigated for their putative catalase-like properties under physiological conditions: i.e., in aqueous solution at pH = 7.0-7.4 and at micromolar concentrations of the catal
Metal Template Reactions. XVI. Design and Synthesis of Primary Diamine Ligands with Additional Nitrogen Donor Atoms
Black, David St. C.,Rothnie, Neil E.
, p. 1141 - 1147 (2007/10/02)
Five new primary diamines (8), (10), (12), (20) and (22) have been synthesized.These compounds contain additional nitrogen donor atoms suitable for metal chelation.An improved preparation of the triamine (6) is also reported.
Cyclic Azo Dioxides. Synthesis and Properties of Bis(o-nitrosobenzyl) Derivatives
Smith, Mark A.,Weinstein, Barry,Greene, Frederick D.
, p. 4597 - 4602 (2007/10/02)
Several cyclic azo dioxides have been prepared by oxidation of the corresponding diamines with sodium tungstate-hydrogen peroxide in ethanol-water: 4 (related to o,o'-dinitrosobibenzyl), 8 (related to bis(o-nitrosobenzyl)ether), 14 (related to bis(o-nitrosobenzyl)amine), 13 (the trifluoroacetate salt of 14), 12a and 12b (the N-carbomethoxy and N-carbo-tert-butoxy derivatives of 14).In solution the azo dioxides are in equilibrium (Ke) with the corresponding dinitroso forms: Ke increases with decreasing polarity of solvent and with increasing temperature.For azo dioxide 4 in dioxane at 25 deg C Ke = 0.18, Δ H0 = 7.09 +/- 0.47 kcal mol-1, and Δ S0 = 20.4 cal mol-1 deg-1.The azo dioxides decompose at elevated temperatures (>100 deg C); azo dioxide 14 is converted to 2-(o-nitrosobenzyl)indazole (15) in refluxing methylene chloride.
