A5103027276- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- Catalytic C–H Functionalization Methods
- Porphyrin and Phthalocyanine Chemistry
- Radical Photochemical Reactions
- Metal-Catalyzed Oxygenation Mechanisms
- Chemical Synthesis and Analysis
- Advanced Chemical Physics Studies
- Advanced Fiber Laser Technologies
- Crystallography and molecular interactions
- Sulfur-Based Synthesis Techniques
- Molecular Junctions and Nanostructures
- Metallurgical and Alloy Processes
- Advanced Materials and Semiconductor Technologies
- Chemical Reaction Mechanisms
- Advanced Image Processing Techniques
- Neurological Disease Mechanisms and Treatments
- Image and Video Stabilization
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Algorithms and Applications
- CO2 Reduction Techniques and Catalysts
- Synthesis and biological activity
- Saffron Plant Research Studies
- Photorefractive and Nonlinear Optics
Cardiff University
2024
Sichuan Normal University
2023
Yunnan University
2009-2023
Ministry of Education of the People's Republic of China
2022
Nanjing University
2004-2021
Shandong University of Technology
2016
University of Chinese Academy of Sciences
2009
Bowling Green State University
2006
Harbin Institute of Technology
1985-1999
Herein is introduced the application of "super-electron-donor"(SED) 2-azaallyl anions in a tandem reduction/radical cyclization/radical coupling/aromatization protocol that enables rapid construction isoquinolines. The value this transition-metal-free method highlighted by wide range isoquinoline ethyl amines prepared with good functional group tolerance and yields. An operationally simple gram scale synthesis also conducted, confirming scalability.
A unique transition-metal-free radical thiolation of 2-azaallyl anions has been developed. Easily accessible thiosulfonates and 2-azaallyls undergo the tandem process single-electron transfer radical-radical coupling to construct C(sp3)-S bonds. This robust protocol enables a mild chemoselective between access α-amino sulfides in 50-92% yields (25 examples). The scalability this was demonstrated by telescopic gram-scale experiments. Mechanistic studies provide significant evidence for reaction.
Here we report a unique transition-metal-free C(sp3)-H/C(sp3)-H coupling of cycloalkanes at room temperature. Unactivated and 2-azaallyls underwent the combination process single-electron transfer (SET) hydrogen atom (HAT) to deliver wide variety cycloalkane-functionalized products. This expedient approach enables under mild conditions without transition metals, initiators, oxidants.
The α-helical coiled-coil motif serves as a robust scaffold for incorporating electron-transfer (ET) functionality into synthetic metalloproteins. These structures consist of supercoiling two or more α helices that are formed by the self-assembly individual polypeptide chains whose sequences contain repeating pattern hydrophobic and hydrophilic residues. Early work from our group attached abiotic Ru-based redox sites to most surface-exposed positions stranded coiled-coils used electron-pulse...
The species obtained by the reaction of [Pd2([18]aneN6)Cl2](ClO4)2(where [18]aneN6 is 1,4,7,10,13,16-hexaazacyclooctadecane) with AgBF4 have been determined electrospray ionization mass spectrometry (ESI-MS) to be an equilibrium mixture three major types dinuclear Pd(II) complex cations, [Pd2(mu-O)([18]aneN6)]2+, [Pd2(mu-OH)([18]aneN6)]3+ and [Pd2(H2O)(OH)([18]aneN6)](3+), in aqueous solution. hydroxo-group-bridged one, [Pd2(mu-OH)([18]aneN6)]3+, a dominant species, whose crystal structure...
It takes two to transfer: A synthetic CuI metalloprotein undergoes bimolecular photoinduced electron transfer in the inverted Marcus regime. The buried CuI4S4(N/O)4 cofactor (purple) has a high reorganization energy and experiences weak electronic coupling acceptors (Q) bulk solvent. This lowers kET below diffusion limit allows observation of behavior.
Four metal complexes based on quinoline carboxylate ligand from 2-(pyridin-4-yl)quinoline-4-carboxylic acid (HL), [ML2(H2O)2] · 2H2On (M = MnII, 1; M CoII, 2; CdII, 3) and [Ag2L2(H2O)2] 3H2On (4) have been synthesized under hydrothermal conditions. Their structures were determined by elemental analyses, IR spectra, further characterized single-crystal X-ray diffraction analysis. Complexes 1-3 feature a 1D chain structure which is linked together to construct the 3D supramolecular network...
The emerging field of metalloprotein design seeks to prepare artificial proteins whose properties can mimic, enhance, and perhaps improve upon many features found in natural metalloenzymes. This review summarizes our recent efforts synthetic metalloproteins built from alpha-helical coiled-coils incorporate electron-transfer functionality within these systems. We have recently designed a cysteine-containing random-coil peptide which forms coiled-coil binding various metals. CuI adduct serve...
Abstract magnified image Two new norditerpenoid alkaloids, ouvrardianines A and B ( 1 2 , resp.), together with eight known compounds, were isolated from Aconitum ouvrardianum. The structures of the compounds elucidated as (1 α ,6 ,14 ,16 β )‐8‐(acetyloxy)‐13‐hydroxy‐1,6,16‐trimethoxy‐4‐(methoxymethyl)aconit‐19‐en‐14‐yl benzoate ) )‐8‐(acetyloxy)‐20‐formyl‐13‐hydroxy‐1,6,16‐trimethoxy‐4‐(methoxymethyl)aconitan‐14‐yl on basis spectral analyses. compound was found to contain rare C(19)N imine group.
In recent years, as the global emphasis on sustainable development has intensified, new energy vehicle industry emerged a pivotal sector in economic transformation, with both government policy support and societal expectations driving increasingly fierce competition within field. For companies to stand firm amidst intense market enhance profitability, they must implement forward-looking strategic adjustments cost management. This research, relying perspective of value chain, delves deeply...
Es braucht Zwei: Ein synthetisches CuI-Metalloprotein geht einen bimolekularen photoinduzierten Elektronentransfer in der invertierten Marcus-Region ein. Der verborgene CuI4S4(N/O)4-Cofaktor (rosa) ist durch eine hohe Reorganisationsenergie gekennzeichnet und schwach elektronisch an Elektronenacceptoren (Q) im Lösungsmittel gekoppelt. Dadurch sinkt kET unter den Diffusionsgrenzwert, invertiertes Marcus-Verhalten kann beobachtet werden.
We propose a new video vectorization approach for converting videos in the raster format to vector representation with benefits of resolution independence and compact storage. Through classifying extracted curves each frame into salient ones non-salient ones, we introduce novel bipartite diffusion (BDCs) order preserve both important image features such as sharp boundaries regions smooth color variation. This allows us propagate across frames that propagation, conjunction geometry...
Crocetin In article 2203132 by Ying Hao, Guosheng Cheng, Rui Tan, and co-workers, Crocetin, naturally extracted from the plant Saffron, acts as a neuroprotective agent for neurodegenerative diseases. It can activate subventricular zone neurogenesis neuronal precursor differentiation in damaged cortex striatum sites to repair injured neurons enhance functional motor behavior of ischemic stroke rats.