63557-10-8Relevant articles and documents
A Double-Walled Thorium-Based Metal-Organic Framework as a Promising Dual-Function Absorbent for Efficiently Capturing Iodine and Dyes
Zhang, Na,Sun, Li-Xian,Xing, Yong-Heng,Bai, Feng-Ying
, p. 5686 - 5695 (2019)
We prepared a rare thorium metal-organic framework (MOF) (Th-TATAB) with a double-walled tetrahedral cage structure and giant unit cell volume of 43 ?513 ?3, which is the largest of all reported thorium-based MOFs to our knowledge. The unique structural character allows the thorium-based MOF to exhibit exceptional adsorption properties toward I2 and dyes with different charges. The experimental results show that in cyclohexane solution the absorption ability of Th-TATAB toward I2 can reach about 750 mg/g, and especially the removal efficiency in cyclohexane solution (0.01 mol/L) can reach 90% in 3 h, which far exceeded that of reported [Zn2(tptc)-(apy)2-x(H2O)x]·H2O (80%, 48 h) and MIL-101-NH2 (90%, 30 h). Furthermore, the simultaneous removal of molecules with different charges is very challenging, while Th-TATAB displays excellent adsorption properties for anionic, neutral, and cationic dyes individually and simultaneously from aqueous solution. The exploration of the adsorption performance of MOF Th-TATAB for iodine in cyclohexane solution and dye contaminants in aqueous solution is of great significance for environmental aspects, which provides a new strategy for opening up the potential applications of thorium-based MOFs and understanding actinides chemistry.
Polybenzimidazole and polybenzimidazole/MoS2 hybrids as an active nitrogen sites: Hydrogen generation application
Dinari, Mohammad,Nabiyan, Afshin,Ensafi, Ali. A.,Jafari-Asl, Mehdi
, p. 100996 - 101005 (2015)
Development of free metal or non-noble-metal catalysts for electrode materials with both excellent activity and high stability is essential for hydrogen production. In this work, nitrogen rich polybenzimidazole (PBI) networks were synthesized through a on
Efficient chemical fixation of CO2from direct air under environment-friendly co-catalyst and solvent-free ambient conditions
Das, Rajesh,Ezhil, Thirumavalavan,Muthukumar, D.,Nagaraja, C. M.,Palakkal, Athulya S.,Pillai, Renjith S.
supporting information, p. 23127 - 23139 (2021/10/25)
The capture and conversion of CO2from direct air into value-added products under mild conditions represents a promising step towards environmental remediation and energy sustainability. Consequently, herein, we report the first example of a Mg(
Synthesis, Spectra, and Theoretical Investigations of 1,3,5-Triazines Compounds as Ultraviolet Rays Absorber Based on Time-Dependent Density Functional Calculations and three-Dimensional Quantitative Structure-Property Relationship
Wang, Xueding,Xu, Yilian,Yang, Lu,Lu, Xiang,Zou, Hao,Yang, Weiqing,Zhang, Yuanyuan,Li, Zicheng,Ma, Menglin
, p. 707 - 723 (2018/05/05)
A series of 1,3,5-triazines were synthesized and their UV absorption properties were tested. The computational chemistry methods were used to construct quantitative structure-property relationship (QSPR), which was used to computer aided design of new 1,3,5-triazines ultraviolet rays absorber compounds. The experimental UV absorption data are in good agreement with those predicted data using the Time-dependent density functional theory (TD-DFT) [B3LYP/6–311 + G(d,p)]. A suitable forecasting model (R > 0.8, P 0.0001) was revealed. Predictive three-dimensional quantitative structure-property relationship (3D-QSPR) model was established using multifit molecular alignment rule of Sybyl program, which conclusion is consistent with the TD-DFT calculation. The exceptional photostability mechanism of such ultraviolet rays absorber compounds was studied and confirmed as principally banked upon their ability to undergo excited-state deactivation via an ultrafast excited-state proton transfer (ESIPT). The intramolecular hydrogen bond (IMHB) of 1,3,5-triazines compounds is the basis for the excited state proton transfer, which was explored by IR spectroscopy, UV spectra, structural and energetic aspects of different conformers and frontier molecular orbitals analysis.
A water stable nanometer complex preparation method and application
-
Paragraph 0036; 0041; 0042, (2017/02/09)
The invention relates to a preparation method and application of a hydrostable nano complex. The preparation method comprises the following steps: dissolving zinc nitrate in water to obtain a zinc nitrate water solution, adding the solution into a dimethy
Microwave-assisted SNAr reaction of 2,4,6-trichloro-1,3,5- triazine for the rapid synthesis of C3-symmetrical polycarboxylate ligands
Karuehanon, Weeranuch,Fanfuenha, Watcharee,Rujiwatra, Apinpus,Pattarawarapan, Mookda
experimental part, p. 3486 - 3489 (2012/08/27)
The microwave-assisted SNAr reaction of 2,4,6-trichloro-1,3,5- triazine with various unprotected amino acids was developed for the synthesis of C3-symmetrical polycarboxylate ligands which can be used as structural directing units in
Complexes of iron(III) and chromium(III) salen and salophen Schiff bases with bridging 1,3,5-triazine derived multidirectional ligands
Koc, Ziya Erdem
experimental part, p. 769 - 775 (2011/10/04)
Figure represented. A new synthetic route for preparing multidirectional ligands was developed by using 2,4,6-trichloro-1,3,5-triazine (cyanuric chloride) as core. The reaction included the selective substitutions of 4-aminobenzoic acid onto three chlorides of the triazine ring via a stepwise manner at 1:1, 1:2, or 1:3 equiv. and 0, 25, 130°C, respectively. An efficient synthesis of a novel class of "multidirectional ligands" has been developed based on high-yielding chloride substitutions of 2,4,6-trichloro-1,3,5-triazine by amines. Sixteen new mono-, di-, tri-, and tetra-nuclear Fe(III) and Cr(III) complexes involving tetradenta Schiff bases N,N′-bis(salicylidene)ethylenediamine-(salenH2) or bis(salicylidene)-o-phenylenediamine-(salophenH2) with two new 1,3,5-triazine derived multidirectional ligands were synthesized and characterized by means of elemental analysis, 1H NMR, FT-IR spectroscopy, LC-MS analysis, AAS, thermal analysis, and magnetic susceptibility measurements. The complexes were also characterized as low-spin distorted octahedral Fe(III) and Cr(III) bridged by carboxylic acids. It was understood that the [{Fe(salen)/(salophen)}2O] and [{Cr(salen)/(salophen)} 2O] containing compounds could be represented by the electronic structure of t2g5eg0 and t 2g3eg0.
An efficient, "green" approach to aryl amination of cyanuric chloride using acetic acid as solvent
Kolmakov, Kirill A.
, p. 533 - 539 (2008/09/18)
(Chemical Equation Presented) Acetic acid is an inexpensive and environmentally friendly solvent for facile, clean and high-yielding aryl amination of cyanuric chloride with aromatic amines, including nitroanilines. Aryl animation in acetic acid medium and isolation protocol are greatly simplified as compared to previously reported procedures. Under proper conditions, it is possible to attach the same or different aniline residues in a controlled way to obtain in excellent yields symmetrical and unsymmetrical 1,3,5-triazine derivatives, respectively.