A5101540451- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Electrocatalysts for Energy Conversion
- Catalytic C–H Functionalization Methods
- CO2 Reduction Techniques and Catalysts
- Metal complexes synthesis and properties
- Metal-Catalyzed Oxygenation Mechanisms
- Cyclopropane Reaction Mechanisms
- Advanced battery technologies research
- Synthesis and Catalytic Reactions
- High-Velocity Impact and Material Behavior
- Chemical Reaction Mechanisms
- Metalloenzymes and iron-sulfur proteins
- Axial and Atropisomeric Chirality Synthesis
- Crystallography and molecular interactions
- DNA and Nucleic Acid Chemistry
- Porphyrin and Phthalocyanine Chemistry
- Catalytic Cross-Coupling Reactions
- Luminescence and Fluorescent Materials
- Asymmetric Hydrogenation and Catalysis
- Graphene research and applications
- Energetic Materials and Combustion
- Perovskite Materials and Applications
- Synthesis and Properties of Aromatic Compounds
- Organic Light-Emitting Diodes Research
Shaanxi Normal University
2019-2025
Xiamen University
2019-2025
Shandong University of Science and Technology
2016-2024
Collaborative Innovation Center of Chemistry for Energy Materials
2019-2024
North University of China
2020-2024
Lanzhou Jiaotong University
2024
Jiangxi University of Science and Technology
2023
Shanghai Maritime University
2023
Xidian University
2023
Shanxi Normal University
2022
Abstract Although persistent room‐temperature phosphorescence (RTP) emission has been observed for a few pure crystalline organic molecules, there is no consistent mechanism and universal design strategy RTP (pRTP) materials. A new pRTP presented, based on combining the advantages of different excited‐state configurations in coupled intermolecular units, which may be applicable to wide range molecules. By following this mechanism, we have developed successful obtain bright by utilizing heavy...
Abstract Nature uses Fe porphyrin sites for the oxygen reduction reaction (ORR). Synthetic porphyrins have been extensively studied as ORR catalysts, but activity improvement is required. On other hand, rarely shown to be efficient evolution (OER). We herein report an enzyme‐inspired 1 catalyst both and OER. Complex , which bears a tethered imidazole binding, beats imidazole‐free analogue 2 with anodic shift of half‐wave potential by 160 mV decrease OER overpotential 150 get benchmark...
Abstract Although persistent room‐temperature phosphorescence (RTP) emission has been observed for a few pure crystalline organic molecules, there is no consistent mechanism and universal design strategy RTP (pRTP) materials. A new pRTP presented, based on combining the advantages of different excited‐state configurations in coupled intermolecular units, which may be applicable to wide range molecules. By following this mechanism, we have developed successful obtain bright by utilizing heavy...
The electronic structure of metal complexes plays key roles in determining their catalytic features. However, controlling structures to regulate reaction mechanisms is fundamental interest but has been rarely presented. Herein, we report tuning Cu porphyrins switch pathways the hydrogen evolution (HER). Through controllable and regioselective β-oxidation porphyrin 1, synthesized analogues 2-4 with one or two β-lactone groups either a cis trans configuration. Complexes 1-4 have same Cu-N
Despite a well-established and growing body of work on nickel(0) precatalysts, the potential complexes as bifunctional precatalysts remains underexplored. In this study, we synthesized, characterized, evaluated catalytic activity (Ni(0)(DQ)dtbbpy), bifunctional, red-light-sensitive, air-stable complex. Owing to its unique photophysical properties, it effectively catalyzed etherification amination aryl bromides under 620–630 nm light irradiation, functioning both photocatalyst an active metal...
Water nucleophilic attack (WNA) on high-valent terminal Mn-oxo species is proposed for O–O bond formation in natural and artificial water oxidation. Herein, we report an electrocatalytic oxidation reaction with MnIII tris(pentafluorophenyl)corrole (1) propylene carbonate (PC). O2 was generated at the MnV/IV potential hydroxide, but a more anodic required to evolve only water. With synthetic MnV(O) complex of 1, second-order rate constant, k2(OH–), 7.4 × 103 M–1 s–1 determined 1 whereas its...
Abstract Reported herein is asymmetric [3+2] annulation of arylnitrones with different classes alkynes catalyzed by chiral rhodium(III) complexes, the nitrone acting as an electrophilic directing group. Three indenes/indenones have been effectively constructed, depending on nature substrates. The coupling system features mild reaction conditions, excellent enantioselectivity, and high atom‐economy. In particular, N ‐benzylnitrones sterically hindered afforded C−C or C−N atropochiral...
Abstract Proton transfer is vital for many biological and chemical reactions. Hydrogen‐bonded water‐containing networks are often found in enzymes to assist proton transfer, but similar strategy has been rarely presented by synthetic catalysts. We herein report the Co corrole 1 with an appended crown ether unit its boosted activity hydrogen evolution reaction (HER). Crystallographic H NMR studies proved that of can grab water via bonds. By using protic acids as sources, HER was largely added...
Developing highly efficient electrocatalysts for the CO2 reduction reaction (CO2RR) has attracted increasing interest in past decade. Herein, we report on design and synthesis of Fe porphyrin 1 with an appended N,N-di(2-picolyl)ethylenediamine (DPEN) unit that boosts electrocatalytic activity CO2-to-CO conversion acetonitrile water as proton source. By mimicking carbon monoxide dehydrogenase (CODH), poly-pyridine/amine units located at active site to form hydrogen-bonded water-containing...
Abstract In enzymes, the active site residues function differently to promote chemical reactions. Such a role‐specialized division of labor has been rarely realized by synthetic catalysts. We report herein on catalytic CO 2 reduction with Fe porphyrins decorated two cationic N,N,N ‐trimethylbenzylamine groups in cis ‐ or trans ‐arrangement. The ‐isomer outperforms and reaches TOF max 4.4×10 5 s −1 acetonitrile using phenol proton source. Theoretical studies revealed that units are more...
Mechanistic understanding of asymmetric induction plays a crucial role in designing new catalytic reactions. Reported herein is atroposelective access to C-N axially chiral isoquinolones via rhodium-catalyzed C-H activation N-alkoxy benzamides and annulation with imidoyl sulfoxonium ylides. The coupling system proceeded excellent functional group tolerance, different conditions were identified afford one or the other enantiomeric product each enantioselectivity for representative class ylide...
Abstract The nucleophilic attack of water or hydroxide on metal‐oxo units forms an O−O bond in the oxygen evolution reaction (OER). Coordination tuning to improve this is intriguing but has been rarely realized. We herein report improved OER catalysis by metal porphyrin 1‐M (M=Co, Fe) with a coordinatively unsaturated ion. designed and synthesized sterically blocking one side tethered tetraazacyclododecane unit. With protection, species generated can maintain unoccupied trans axial site....
Direct asymmetric Suzuki coupling between arylboronic acids and 2-diarylphosphinyl-1-naphthyl bromides was successfully developed for the first time with use of Pd–L1 or Pd–(Cy-MOP) as catalyst. A variety axially chiral 2-functionalized-2′-diarylphosphinyl-1,1′-biaryls were afforded in 34–99% yields up to 94% ee. This methodology provides a highly efficient practical strategy synthesis novel biaryl monophosphine oxides corresponding phosphines. The existence an ortho formyl group greatly...
Abstract We report chiral Rh III cyclopentadienyl‐catalyzed enantioselective synthesis of lactams and isochromenes through oxidative [4+1] [5+1] annulation, respectively, between arenes 1,3‐enynes. The reaction proceeds a C−H activation, alkenyl‐to‐allyl rearrangement, nucleophilic cyclization cascade. mechanisms the annulations were elucidated by combination experimental computational methods. DFT studies indicated that, following activation alkyne insertion, alkenyl intermediate undergoes...
Reported herein is the rhodium-catalyzed enantioselective three-component coupling of arene, diene, and dioxazolone that occurs via C–H activation en route to allyl intermediate. This carboamination reaction affords chiral allylic amines in 1,2-selectivity, E-selectivity, enantioselectivity, with electrophilic amination π-allyl species being both regio- enantio-determining.
Open AccessCCS ChemistryCOMMUNICATION5 Sep 2022Tuning Electronic Structures of Covalent Co Porphyrin Polymers for Electrocatalytic CO2 Reduction in Aqueous Solutions Yabo Wang†, Xue-Peng Zhang†, Haitao Lei, Kai Guo, Gelun Xu, Lisi Xie, Xialiang Li, Wei Zhang, Ulf-Peter Apfel and Rui Cao Wang† Key Laboratory Applied Surface Colloid Chemistry, Ministry Education, School Chemistry Chemical Engineering, Shaanxi Normal University, Xi’an 710119 †Y. Wang X.-P. Zhang contributed equally to this...
An "end-off" compartmental ligand has been synthesized by an abnormal Mannich reaction, namely, 2-[bis(2-methoxyethyl)aminomethyl]-4-isopropylphenol yielding three centrosymmetric binuclear μ-phenoxozinc(II) complexes having the molecular formula [Zn2(L)2X2] (Zn-1, Zn-2, and Zn-3), where X = Cl–, Br –, I respectively. X-ray crystallographic analysis shows that ZnO3NX chromophores in each molecule form a slightly distorted trigonal-bipyramidal geometry (τ 0.55–0.68) with intermetallic...