A5100732846- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Ionic liquids properties and applications
- Covalent Organic Framework Applications
- Energetic Materials and Combustion
- Metal-Organic Frameworks: Synthesis and Applications
- Thermal and Kinetic Analysis
- Luminescence and Fluorescent Materials
- Radioactive element chemistry and processing
- Extraction and Separation Processes
- Crystallography and molecular interactions
- Gas Sensing Nanomaterials and Sensors
- Electrochemical Analysis and Applications
- Chemical Synthesis and Reactions
- Inorganic and Organometallic Chemistry
- Chemical Thermodynamics and Molecular Structure
- Chemical Synthesis and Characterization
- Advanced Chemical Sensor Technologies
- Lanthanide and Transition Metal Complexes
- Analytical Chemistry and Sensors
- Synthesis of Tetrazole Derivatives
- Polyoxometalates: Synthesis and Applications
- Electrochemical sensors and biosensors
- Catalysis and Oxidation Reactions
- Molecular Sensors and Ion Detection
Sichuan University
2016-2025
Chengdu University
2014-2019
Institute for Nuclear Science and Technology
2016
Beijing National Laboratory for Molecular Sciences
2006-2014
Chinese Academy of Sciences
2014
University of Idaho
2008-2012
Peking University
2004-2006
State Key Laboratory for Structural Chemistry of Unstable and Stable Species
2005
A family of novel ionic liquids with amino acids and their derivatives as cations environmentally benign materials anions have been synthesized using easy preparation techniques. The obtained the same characteristics conventional imidazolium chiralities natural acids. Thermal stabilities, phase behaviour, viscosities miscibilities representative members investigated, generally showing no difference from liquids. These acid may be used catalysts "fully green" solvents in cycloaddition...
Abstract Particulate matter (PM) pollutants, including nanoscale particles (NPs), have been considered serious threats to public health. In this work, a self-powered air filter that can be used in high-efficiency removal of PM, NPs, is presented. An ionic liquid–polymer (ILP) composite irregularly distributed onto sponge network form an ILP@MF filter. Enabled by its unique electrochemical properties, the remove PM 2.5 and 10 with high efficiencies 99.59% 99.75%, respectively, after applying...
Abstract Compared to the current mainstream rigid covalent organic frameworks (COFs) linked by imine bonds, flexible COFs have certain advantages of elasticity and self‐adaptability, but their construction application are greatly limited complexity in synthesis difficulty obtaining regular structure. Herein, we reported for first time a series amine‐linked with high crystallinity synthesized formic acid unique catalytic reductive bifunctional properties, rather than acetic acid, most common...
Abstract Adsorption, storage, and conversion of gases (e.g., carbon dioxide, hydrogen, iodine) are the three critical topics in field clean energy environmental mediation. Exploring new methods to prepare high‐performance materials improve gas adsorption is one most concerning recent years. In this work, an ionic liquid solution process (ILSP), which can greatly kinetic performance covalent organic framework (COF) for gaseous iodine, explored. Anionic COF TpPaSO 3 H modified by...
Two families of a new generation ionic liquids, in which the chiral cations are directly derived from naturally occurring α-amino acids and acid ester salts, have been obtained via very simple preparations.
The instructive structure-property relationships of ionic liquids (ILs) can be put to task-specific design new functionalized ILs. dicyanamide (DCA) ILs are typical CHN type which halogen free, chemical stable, low-viscous and fuel-rich. transport properties DCA significant for their applications as solvents, electrolytes hypergolic propellants. This work systematically investigates several important four ([C4mim][N(CN)2], [C4m2im][N(CN)2], N4442[N(CN)2], N8444[N(CN)2]) including viscosity,...
Nitrocyanamide ionic liquids with substituted imidazolium, guanidinium, and tetrazolium cations have been synthesized fully characterized. Aminoguanidinium nitrocyanamide (7) crystallizes in the triclinic system P1. The results obtained from theoretical calculations based on 7 are consistent single-crystal structure data. These exhibit desirable physicochemical properties, such as low melting points good thermal stabilities. Furthermore, they all impact insensitive materials. Their energetic...
The water-soluble Pd nanoparticles are highly-efficient catalysts for the selective hydrogenation of phenol to cyclohexanone in water under mild conditions.
Covalent organic frameworks show great potential in gas adsorption/separation, biomedicine, device, sensing, and printing arenas. However, covalent are generally not dispersible common solvents resulting the poor processability, which severely obstruct their application practice. In this study, we develop a convenient top-down process for fabricating solution-processable by introducing intermolecular hydrogen bonding π-π interactions from ionic liquids. The bulk powders of imine-linked,...
Abstract High‐density energetic salts that contain nitrogen‐rich cations and the 5‐(tetrazol‐5‐ylamino)tetrazolate (HBTA − ) or 5‐(tetrazol‐5‐yl)tetrazolate (HBT anion were readily synthesized by metathesis reactions of sulfate with barium compounds, such as bis[5‐(tetrazol‐5‐ylamino)tetrazolate] (Ba(HBTA) 2 ), iminobis(5‐tetrazolate) (BaBTA), 5,5′‐bis(tetrazolate) (BaBT) in aqueous solution. All fully characterized IR spectroscopy, multinuclear ( 1 H, 13 C, 15 N) NMR elemental analyses,...
5-Aminotetrazole (AT) behaves as a weak acid and can be used to obtain nitrogen-rich energetic salts ionic liquids. These AT have been characterized by IR, NMR, elemental analysis, thermal stability, phase behavior, density. The salt 2 contains 82% nitrogen, 7 has the highest nitrogen content (68%) of any known room temperature liquid. Compound 5 crystallizes in chiral orthorhombic system P2(1)2(1)2(1). Based on their calculated heats formation, detonation properties, hydrolytic stabilities,...
Nitrogen-rich 5-(1-methylhydrazinyl)tetrazole (1, MHT) was synthesized by using a straightforward method. White plate crystals of 1 were isolated in acetonitrile and crystallized the monoclinic system P21/c (# 14) (a = 3.8713(18) Å, b 12.770(6) c 9.974(5) α 90°, β 93.397(6)°, γ V 492.3(4) Å3, Z 4). The reactions Cu(II) Ag(I) ions aqueous solution with investigated found to form two complexes under mild conditions. crystal structures 2 3 are discussed respect coordination mode MHT anion....
Propellant materials genome offers a new approach to the design of high-performance hypergolic propellants.
Abstract A novel low‐symmetry organic molecular cage with distinctive geometry was successfully synthesized from 5,5′‐(propane‐2,2‐diyl)bis(2‐hydroxyisophthalaldehyde) and 1,2‐cyclohexanediamine building blocks, through the desymmetrized vertex design strategy. Single‐crystal X‐ray crystallographic analysis shows that contains asymmetrical nonplanar windows, exhibiting an unprecedented C 2 symmetry efficient packing. The structure also characterized by FTIR, NMR, MALDI‐TOF. Quantum chemistry...
Adaptive bionic self-correcting behavior offers an attractive property for chemical systems. Here, based on the dynamic feature of imine formation, we propose a solvent-responsive strategy smart switching between amorphous ionic polyimine membrane and crystalline organic molecule cage without addition other building blocks. To adapt to solvent environmental constraints, aldehyde amine components undergo self-correction form polymer network or molecular cage. Studies have shown that film can...
Materials capable of separating and removing iodine vapor from nuclear fuel reprocessing off-gases are significant to our environment, especially for human health. Adsorption is an effective widely used separation method. In this work, a novel biomass alginate-based composite [N1111][Alg]@MF was fabricated by modifying polymers seaweeds capture. Starting materials such as accessible low-cost. Benefiting abundant functional groups in alginate the high porosity provided MF, adsorption capacity...
Copper(II) and cadmium(II) complexes of 5,5'-azobis(tetrazolate) (ABT) were synthesized at ambient temperature. The anhydrous copper(II) salts (1) (3) are very impact sensitive. energetic ABT coordination complexes, tetraammine copper dihydrate [Cu(NH(3))(4)]ABT(H(2)O)(2) (2) diammine cadmium [Cd(NH(3))(2)(H(2)O)(2)]ABT (4) prepared then structured by single crystal X-ray diffraction. Their vibrational spectra (IR) measured compared with the calculated frequencies. Thermal stabilities...
The nitrogen-rich energetic material 3,4,5-triamino-1-tetrazolyl-1,2,4-triazole (TATT) was synthesized from diaminoguanidine using a straightforward method. assumption that 1,2,4-triazole ring is an intermediate in the one-pot reaction supported by synthesis of TATT analogous 3,4,5-triamino-1,2,4-triazole with cyanogen azide. TATT·HNO3 crystallizes monoclinic system P21/c. has excellent thermal stability which resembles triaminotrinitrobenzene (TATB), but higher positive heat formation and...
1,5-Diaminotetrazole (DAT) is a fascinating component in the construction of high-energy-density materials because its extremely high nitrogen content (∼84%). Three DAT nitro-substituted azolate salts were synthesized and fully characterized by IR, NMR, elemental analysis, thermal stability, phase behavior, density. 1,5-Diamino-4H-tetrazolium 5-nitrotetrazolate salt (2) crystallizes orthorhombic system Pbca. The detonation pressure (P) values calculated for these range from 28.05 to 29.88...
Actinide partitioning is considered as one of the most challenging issues in nuclear waste remediation. Herein, we unravel a novel extraction mode pertinent to competitive host-guest interactions for highly efficient actinide extraction. The recognition event involves binding room temperature ionic liquid (RTIL), 1-n-octyl-3 methylimidazolium bis(trifluoromethane)sulfonamide (C8mimNTf2), both guest and solvent by hosts pillar[5]arene-based diglycolamides (P5DGAs) subsequent displacement...