A5052464672- Supramolecular Chemistry and Complexes
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Supramolecular Self-Assembly in Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Molecular Sensors and Ion Detection
- Superconducting Materials and Applications
- Ionosphere and magnetosphere dynamics
- Magnetic confinement fusion research
- Electron and X-Ray Spectroscopy Techniques
- Atomic and Molecular Physics
- X-ray Spectroscopy and Fluorescence Analysis
- Luminescence and Fluorescent Materials
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Nuclear Physics and Applications
- Plasma Diagnostics and Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Particle Detector Development and Performance
- Nuclear physics research studies
- Solar and Space Plasma Dynamics
- Dendrimers and Hyperbranched Polymers
- Quantum Mechanics and Applications
- Astrophysics and Cosmic Phenomena
- Heat Transfer and Boiling Studies
Institute of Modern Physics
2015-2024
Chinese Academy of Sciences
2015-2024
University of Chinese Academy of Sciences
2015-2024
Central South University
2018-2024
Bay Institute
2020-2023
Brookhaven National Laboratory
2020-2022
National Institute of Metrology
2009-2022
Hefei Institutes of Physical Science
2022
Institute of Coal Chemistry
2020
Institute of Electronics
2017
Cuprous oxide (Cu2O) with controlled morphology was synthesized via a hydrothermal method by reducing copper nitrate formic acid. Reactant concentration, reaction temperature, and time show strong effects on the phase formation of products. The products were characterized X-ray power diffraction (XRD), scanning electron microscope (SEM), UV−vis diffuse reflectance spectroscopy. possible crystal growth processes have been proposed. band gap versus different also studied.
Developing a methodology to build target structures is one of the major themes synthetic chemistry. However, it has proven be immensely challenging achieve multilevel elaborate molecular architectures in predictable way. Herein, we describe self-assembly series pinwheel-shaped starlike supramolecules through three rationally preorganized metalloligands L1–L3. The key octa-uncomplexed terpyridine (tpy) metalloligand L3, synthesized with an 8-fold Suzuki coupling reaction metal-containing...
By a precise metallo-ligand design, the advanced coordination-driven self-assembly could succeed in preparation of giant molecular weight metallo-architectures. However, synthesis single discrete high-molecular-weight (>100 K Da) structure has not been demonstrated due to insurmountable synthetic challenge. Herein, we present two-dimensional wheel (W1) and gigantic three-dimensional dodecagonal prism-like architecture (P1), which were generated by multicomponent two similar metallo-organic...
Cooling of beams gold ions using electron bunches accelerated with radio-frequency systems was recently experimentally demonstrated in the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. Such an approach is new and opens possibility this technique higher energies than possible electrostatic acceleration beams. The challenges include generation suitable for cooling, delivery required quality to cooling sections without degradation beam angular divergence energy spread,...
In recent years, radioactive iodine capture has played an important role in nuclear waste treatment. However, most of the adsorbents possess low economic efficiency and undesirable reutilization practical application. this work, a terpyridine-based porous metallo-organic cage was assembled for adsorption. Through synchrotron X-ray analysis, metallo-cage found to have hierarchical packing mode with inherent cavity channel. By taking advantage polycyclic aromatic units charged ⟨tpy-Zn2+-tpy⟩...
Fractal structures with self-similarity are of fundamental importance in the fields aesthetic, chemistry and mathematics. Here, by taking advantage constructs rational geometry-directed precursor design, we report construction two fascinating Platonic solids, Sierpiński tetrahedron ST-T octahedron ST-O, which each possesses a fractal triangle on their independent faces. These discrete complexes formed near-quantitative yield from multi-component self-assembly truncated triangular kernel L1...
The amalgamation of different components into a giant and intricate structure that makes quantitative spontaneous assembly through molecular design is indispensable but challenging. To construct novel metallo-supramolecular architectures, here we present an architectural principle based on multicomponent self-assembly. Using carefully designed hexatopic terpyridine-based metallo-organic ligand (MOL), [Ru2T2K], report the formation supramolecular trapezoid Zn5[Ru2T2K]V2, hollow hexagon...
Polyhedra have long appeared throughout art and design for their aesthetic topological features and, more recently, found versatile roles in supramolecular chemistry organized materials. Non-regular convex tetrahedra with positive augmentations of a regular tetrahedron, example an isohedral triakis rarely been explored synthetic chemistry. Herein, we report the synthesis giant tetrahedron through multi-component self-assembly from four umbrella-shaped hexa-armed organic terpyridine ligands...
To address the issue of frequency nonlinearity modeling RF PAs, which is rarely seen in literature, a BPNN applied to model PAs this paper. The used PA, based on actual measured S-parameter data at different ambient temperatures. results show that shows advantage high accuracy PAs. It expected will also advantages process other devices or circuits.
<h2>Summary</h2> Fractals are a series of intricate patterns with aesthetic, mathematic, and philosophic significance. The Sierpiński triangles have been known for more than one hundred years, but only recently discrete shape-persistent low-generation (mainly ST-1) fractal supramolecules realized. Herein, we report retro-assembly pathway to the nanometer-scale, supra-macromolecular second-generation triangle its third-generation saturated counterpart (Pascal's triangle). These gigantic...
Coordinative supramolecular cages with adjustable cavities have found extensive applications in various fields, but the cavity modification strategies for multi-functional structures are still challenging. Here, we present a tension-driven self-expansion strategy construction of multi-cavity high structural complexity. Under regulation strain-induced capping ligands, unprecedented heteromorphosis triple-cavity S
The template-directed strategy has been extensively employed for the construction of supramolecular architectures. However, with increase in size and complexity these structures, synthesis difficulty templates escalates exponentially, thereby impeding widespread application this strategy. In study, two truncated triangles T1 T2 were successfully self-assembled through a novel segmented template by segmenting core triangular into portions. Two metallo-organic ligands L2 L3 designed...
The construction and application of metal-organic cages with accessible internal cavities have witnessed rapid development, however, the precise synthesis complex capsules multiple achievement multi-guest encapsulation, further in-depth comprehension host-multi-guest recognition remain a great challenge. Just like building LEGO blocks, herein, we constructed series high-order layered architectures generation n (n = 1/2/3/4 is also number cavities) by multi-component coordination-driven...
Self-assembly of ligand L and Cd II ions affords two metallo-organic cage CdII8L 4 conformers: meta-stable C 2h -1 thermodynamically favored D 2 -2. The inclusion guest perfluorooctanoate shifts the equilibrium distribution to conformer -1.
The Low Energy RHIC electron Cooling (LEReC) project at Brookhaven National Laboratory recently demonstrated for the first time cooling of hadron bunches with radio-frequency (rf) accelerated bunches. LEReC uses a high-voltage photoemission gun stringent requirements beam current, quality, and stability. has photocathode high-power fiber laser, novel cathode production, transport, exchange system. It been that can continually produce high-current quality suitable cooling. We describe...
A high-current high-brightness electron accelerator for low-energy RHIC cooling (LEReC) was successfully commissioned at Brookhaven National Laboratory. The LEReC includes a dc photoemission gun, laser system, photocathode delivery magnets, beam diagnostics, superconducting rf booster cavity, and set of normal conducting cavities to provide enough flexibility tune the in longitudinal phase space. Cooling with nonmagnetized accelerated beams requires corrections obtain small momentum spread...
The Low Energy Relativistic Heavy Ion Collider (RHIC) Electron Cooler (LEReC) is the world's first electron cooler using rf-accelerated bunches. Recently, cooling of gold ion beams in RHIC by 1.6 and 2.0 MeV electrons was successfully achieved. Along with velocity spread alignment beam, space-charge force between ions also plays an important role process. In order to investigate dynamics bunched provide guidance for LEReC operation, a simulation code developed, which includes nonmagnetized...
The allosteric effect, described as biological enzymes' conformation change to accommodate specific substrates, plays an important role in metabolic regulation. However, well-organized aggregation of synthetic receptors into high-order supramolecular structures with different conformations and functions response a variety external stimuli presents formidable challenge. Herein, series quadruple-stranded helicates are created through the templation effect halide ions library...
A pair of enantiomeric tetrahedral cages have been constructed using a hexapod ligand. By utilizing large aromatic triphenylene as the core, crystal structure metallo-cages exhibited hierarchical packing due to π–π interaction.
A combination of electron cooling and rf system is an effective method to compress the beam bunch length in storage rings. simulation code based on multiparticle tracking was developed calculate bunched ion process, which cooling, intrabeam scattering (IBS), space-charge field, transverse synchrotron motion are considered. Meanwhile, experiments have been carried out main ring (CSRm) Heavy Ion Research Facility Lanzhou, investigate minimum obtained by method, study dependence machine...