A5005852026- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Organometallic Complex Synthesis and Catalysis
- Synthesis and Properties of Aromatic Compounds
- Catalytic Processes in Materials Science
- Organic Electronics and Photovoltaics
- Magnetism in coordination complexes
- Synthesis and characterization of novel inorganic/organometallic compounds
- Metal-Organic Frameworks: Synthesis and Applications
- Organoboron and organosilicon chemistry
- Catalysis and Oxidation Reactions
- Sulfur-Based Synthesis Techniques
- Catalytic C–H Functionalization Methods
- Synthesis and Catalytic Reactions
- Radical Photochemical Reactions
- Cyclopropane Reaction Mechanisms
- Catalytic Cross-Coupling Reactions
- Advancements in Battery Materials
- Photochromic and Fluorescence Chemistry
- Supercapacitor Materials and Fabrication
- Glass properties and applications
- Quantum Dots Synthesis And Properties
- Metalloenzymes and iron-sulfur proteins
- Nonlinear Optical Materials Studies
- Gold and Silver Nanoparticles Synthesis and Applications
Yangzhou University
2025
Peking University
2019-2024
Shanghai Institute of Organic Chemistry
2020-2024
Chinese Academy of Sciences
2024
Beijing National Laboratory for Molecular Sciences
2019-2024
State Key Laboratory of Rare Earth Materials Chemistry and Application
2022-2023
East China Normal University
2012-2022
Southwest University of Science and Technology
2019-2020
University of Chinese Academy of Sciences
2020
China Academy of Engineering Physics
2020
Isolation of key intermediate complexes in dinitrogen functionalization is crucial for elucidating the mechanistic details and further investigation. Herein, synthesis characterization (μ-η1:η1-N2)(η1-N2)-Cr(I) 3 (η1-N2)2-Cr(0) 4 supported by Cp* (Cp* = C5Me5) NHC ligands were reported. Further Cr(0)-N2 complex with silyl halides delivered intermediates alternating pathway, chromium diazenido 5 side-on η2-hydrazido 6. Protonation 6 led to quantitative formation N2H4. Moreover,...
Copper-catalyzed coupling reactions of alkyl halides are believed to prominently involve copper(II) species and radicals as pivotal intermediates, with their exact interaction mechanism being the subject considerable debate. In this study, a visible light-responsive fluoroalkylcopper(III) complex, [(terpy)Cu(CF3)2(CH2CO2tBu)] Trans-1, was designed explore mechanism. Upon exposure blue LED irradiation, Trans-1 undergoes copper–carbon bond homolysis, generating Cu(II) carbon-centered radicals,...
Chiral nanographenes (NGs) have garnered significant interest as optoelectronic materials in recent years. While helically chiral NGs been extensively studied, axially only witnessed limited examples, with no prior reports of nonbenzenoid NGs. Herein we report an nanographene featuring six pentagons and four heptagons. This compound, denoted 2, was efficiently synthesized via efficient Pd-catalyzed aryl silane homocoupling reaction. The presence two bulky 3,5-di-tert-butylphenyl groups...
Non-benzenoid acenes containing heptagons have received increasing attention. We herein report a heptacene analogue quinoidal benzodi[7]annulene core. Derivatives of this new non-benzenoid acene were obtained through an efficient synthetic strategy involving Aldol condensation and Diels-Alder reaction as key steps. The configuration can be modulated from wavy to curved one by just varying the substituents (triisopropylsilyl)ethynyl group 2,4,6-triisopropylphenyl (Trip) group. When mesityl...
Trifluoromethylative difunctionalization of alkenes with a variety nucleophiles including amine, azide, alcohol, water, and electron-rich arenes using reagent 1 as trifluoromethyl radical source in the presence synergistic catalyst Lewis acid scandium(III) trifluoromethanesulfonate (Sc(OTf)3) photoredox [fac-Ir(ppy)3] was described. Mechanistic studies showed that role Sc(OTf)3 reaction is to activate via acid–Lewis base interaction form complex [Sc(OTf)3•3(1)], which fully characterized by...
DFT calculations were performed to investigate Pd-catalyzed allylic sulfonylation of tertiary carbonates. The bifunctional role the sulfonate nucleophile enables C–S bond formation via a unique inner-sphere pathway.
We performed a quantitative analysis of plasmon-assisted two-photon photochromic reactions on light-harvesting gold nanodimer structures. Our strategy for the two-photon-induced photochemical nanostructures is using not only confined reaction chamber but also solution system. The strong intensification near-field light at nanogap positions pairs promoted absorption by closed-form diarylethene derivative, resulting in highly efficient conversion to open-form structure.
Abstract A new Ru‐based catalyst system based on N,N′‐Dimethylpropyleneurea (DMPU) was developed for the acetylene hydrochlorination reaction in this study. The optimal 1 % Ru‐10 %DMPU/AC exhibits best activity with conversion of 87.6 under 170 °C and GHSV (C 2 H ) 900 h −1 . Additionally, lower Ru content (0.2 wt%) displayed excellent stability 81.3 after 200 conditions C 180 characterization results indicate that presence DMPU could improve dispersion catalytic species provide full...
Chlorocuprate(<sc>i</sc>) ionic liquids can be well-stabilized, low-cost, efficient and green non-mercury catalysts for hydrochlorination of acetylene.
While reduction reactions are ubiquitous in chemistry, it is very challenging to further reduce electron-rich compounds, especially the anionic ones. In this work, of 1,3-butadienyl dianion, conjugated olefin, has been realized by divalent rare-earth metal compounds (SmI2), resulting formation novel 2-butene tetraanion bridged disamarium(III) complexes. Density functional theory (DFT) analyses reveal two features: (i) single electron transfer (SET) from 4f atomic orbitals (AOs) each Sm...
Open AccessCCS ChemistryRESEARCH ARTICLE1 Dec 2021Dinitrogen Activation of Cyclopentadienyl-Phosphine–Iron Complexes Three Different Valences Gao-Xiang Wang†, Jianhao Yin†, Jiapeng Li†, Zhu-Bao Yin, Botao Wu, Junnian Wei, Wen-Xiong Zhang and Zhenfeng Xi Wang† Beijing National Laboratory for Molecular Sciences (BNLMS), Key Bioorganic Chemistry Engineering Ministry Education, College Chemistry, Peking University, 100871 †G.-X. Wang, J. Li contributed equally to this work.Google Scholar More...
A perylene five-membered ring diimide, PDI39, was developed as a new electron-deficient building block for n-type semiconductors. The π-expanded conjugated molecules containing azulenes were synthesized from PDI39. These show helical geometry and near-infrared absorption up to 810 nm.
A polymer based on thienoquinoid showed unipolar n-type characteristics with an electron mobility of up to 0.45 cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup>.
While a ligand-to-ligand charge-transfer (LLCT) process is an important way to understand the interactions between metal-bridged radicals for late-transition-metal complexes, there little clear and evident observation of LLCT rare-earth-metal complexes. In this work, diradical complexes supported by diazabutadiene (DAD) ligands [(DAD)2RE(BH4)] [RE = Yb (1), Sm (2)] were synthesized studied. The coordination geometries 1 2 are different due ionic radii. Reduction or generated monoradical with...
In dinitrogen (N
New kinds of diradical rare-earth metal complexes supported by diazabutadiene (DAD) ligands, [(DAD)2LnN(TMS)2] (1; Ln = Dy, Lu; TMS SiMe3), were synthesized and studied. They showed a new [radical–Ln–radical] alignment with distorted square-pyramidal geometry. Structural density functional theory analysis illustrated the radical anionic nature ligands. Magnetic studies revealed antiferromagnetic coupling two radicals in 1-Lu. 1-Dy typical single-molecule-magnet (SMM) behavior an effective...
Synthesis and characterization of metallacycles is an important research issue because they have acted as building blocks key intermediates in synthetic catalytic chemistry. However, spiro rare-earth metallacyclopent-3-enes metallacyclopentadienes are two kinds untouched species. Herein, we report the construction 2 by ligand-based 4e- reduction 3 with excess lithium. Complexes represent a class could be easily synthesized from reaction 1,4-dilithio-1,3-butadiene 1 0.5 equiv ScCl3. X-ray...
The lower the minimum surface electrostatic potential of ligand, better modification effect on Ru-based catalysts. HMTA and DABCO catalysts is greatly improved when they are prepared into organic chlorine salts.
Open AccessCCS ChemistryCOMMUNICATION1 Feb 2022Dinitrogen Functionalization Affording Structurally Well-Defined Cobalt Diazenido Complexes Mingdong Zhong, Xianlu Cui, Botao Wu, Gao-Xiang Wang, Wen-Xiong Zhang, Junnian Wei, Lili Zhao and Zhenfeng Xi Zhong Beijing National Laboratory for Molecular Sciences (BNLMS), Key of Bioorganic Chemistry Engineering Ministry Education, College Chemistry, Peking University, 100871 , Cui Institute Advanced Synthesis, School Engineering, Jiangsu Synergetic...