A5068310044- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- Luminescence and Fluorescent Materials
- Catalytic C–H Functionalization Methods
- Advanced Chemical Physics Studies
- Conducting polymers and applications
- Asymmetric Synthesis and Catalysis
- Atmospheric Ozone and Climate
- Sulfur-Based Synthesis Techniques
- Radical Photochemical Reactions
- Oxidative Organic Chemistry Reactions
- Spectroscopy and Laser Applications
- Fluorine in Organic Chemistry
- Molecular Junctions and Nanostructures
- Spectroscopy and Quantum Chemical Studies
- Photonic and Optical Devices
- Superconducting and THz Device Technology
- Atmospheric chemistry and aerosols
- Perovskite Materials and Applications
- Synthesis and properties of polymers
- Synthesis of Indole Derivatives
- Molecular Spectroscopy and Structure
- Traditional and Medicinal Uses of Annonaceae
- Quantum Dots Synthesis And Properties
- Click Chemistry and Applications
University of Science and Technology of China
2008-2025
CAS Key Laboratory of Urban Pollutant Conversion
2025
Ningbo Institute of Industrial Technology
2017-2024
Chinese Academy of Sciences
2009-2024
Chongqing University of Technology
2009-2023
University of Chinese Academy of Sciences
2007-2023
Wuhan University
2018-2023
Cambridge University Press
2022
New York University Press
2022
South China University of Technology
2022
The privileged spiro[pyrrolidin-3,3′-oxindole] derivatives exhibit important biological activities. An enantioselective organocatalytic approach to the rapid synthesis of with high enantiopurity and structural diversity is described. asymmetric catalytic three-component 1,3-dipolar cycloaddition a broad range methyleneindolinones aldehydes amino esters in presence chiral phosphoric acid provides spirooxindole yield unusual regiochemistry excellent stereoselectivities (up 98% ee) under mild...
Abstract A visible‐light photocatalytic generation of N‐centered hydrazonyl radicals has been accomplished for the first time. This approach allows efficient intramolecular addition radical to terminal alkenes, thus providing hydroamination and oxyamination products in good yields. Importantly, protocol involves deprotonation an NH bond oxidation radical, obviating need prepare photolabile amine precursors or stoichiometric use oxidizing reagents.
Abstract Organic emitters play a vital role in determining the overall performance of organic light emitting diode (OLED) devices. Traditional fluorescent can only achieve external quantum efficiency (EQE) 5%, far below expectation; therefore many efforts have been spent on increasing EQE OLEDs. Phosphorescence, thermally activated delayed fluorescence, triplet–triplet annihilation, and hybridized local charge transfer are most widely applied approaches to harvest 75% triplet excitons for...
Abstract Compared with the popularity of various C-centred radicals, N-centred radicals remain largely unexplored in catalytic radical cascade reactions because a lack convenient methods for their generation. Known generation typically require use N-functionalized precursors or toxic, potentially explosive unstable initiators. Recently, visible-light photocatalysis has emerged as an attractive tool formation but pre-incorporation photolabile groups at nitrogen atom limited reaction scope....
A general visible light induced photoredox-catalyzed radical trifluoromethylation/cyclization cascade of β-aryl-β,γ-unsaturated hydrazones and oximes is described. The protocol enables an efficient access to various densely functionalized biologically important CF3-containing dihydropyrazoles isoxazolines with generally high yields.
Abstract A novel small‐molecule acceptor, (2,2′‐((5 E ,5′ )‐5,5′‐((5,5′‐(4,4,9,9‐tetrakis(5‐hexylthiophen‐2‐yl)‐4,9‐dihydro‐s‐indaceno[1,2‐ b :5,6‐ ′]dithiophene‐2,7‐diyl)bis(4‐(2‐ethylhexyl)thiophene‐5,2‐diyl))bis(methanylylidene)) bis(3‐hexyl‐4‐oxothiazolidine‐5,2‐diylidene))dimalononitrile (ITCN), end‐capped with electron‐deficient 2‐(3‐hexyl‐4‐oxothiazolidin‐2‐ylidene)malononitrile groups, is designed, synthesized, and used as the third component in fullerene‐free ternary polymer solar...
All-solution-processing at low temperatures is important and desirable for making printed photovoltaic devices also offers the possibility of a safe cost-effective fabrication environment devices. Herein, an all-solution-processed flexible organic solar cell (OSC) using poly(3,4-ethylenedioxythiophene):poly-(styrenesulfonate) electrodes reported. The yield highest power conversion efficiency 10.12% with high fill factor over 70%, which value metal-oxide-free OSCs reported so far. enhanced...
A bifunctional organocatalytic asymmetric formal [4 + 2] cycloaddition reaction of Nazarov reagents and methyleneindolinones afforded spiro[4-cyclohexanone-1,3′-oxindoline] derivatives with excellent enantioselectivity (up to 98% ee).
Abstract Fluorescent microspheres are widely used as biological tracers. In this study, uniformly sized chitosan crosslinked with glutaraldehyde (CG microspheres) and formaldehyde (CF successfully prepared by the Shirasu Porous Glass (SPG) membrane emulsification technique. Selectively reduced CG (SRCG obtained NaBH 4 reduction. These found to exhibit fluorescent properties without conjugation any agent. The fluorescence color varies different crosslinkers can be modulated further chemical...
A visible-light-induced photocatalytic oxytrifluoro-methylation reaction of <italic>N</italic>-allylamides has been described for the efficient synthesis CF<sub>3</sub>-containing oxazolines and benzoxazines in generally high yields.
An unprecedented three-component coupling reaction of arynes, α-bromo carbonyl compounds, and DMSO triggered by insertion arynes into the S═O bond has been developed. The can generate a wide range multisubstituted aryl methyl thioethers in good yields, wherein serves as both methylthiolation reagent oxygen source.
Abstract This Concept article highlights recent advances in the rapidly developing field of visible‐light‐driven, single‐photocatalyst‐promoted photocascade catalysis and its application discovery novel reactivities suitable for cascade reactions. Examples catalytic transformations are categorized by activation modes substrates intermediates involved these processes. It is hoped that this emerging strategy will enable chemists to develop many more useful, sustainable sophisticated synthetic...
Thermally activated delayed fluorescence (TADF)‐type compounds have great potential as emitter molecules in organic light‐emitting diodes, allowing for electrofluorescence with 100% internal quantum efficiency. In small molecules, TADF is achieved through the formation of intramolecular charge‐transfer states. The only design limitation requirement that donor and acceptor entities spatially decouple highest occupied lowest unoccupied molecular orbitals, respectively, to minimize exchange...
Abstract We report a cooperative catalytic system comprising Pd II complex, XPhos, and the potassium salt of 5‐norbornene‐2‐carboxylic acid that enables use epoxides as alkylating reagents in Catellani reaction, thereby expanding existing paradigm this powerful transformation. The inexpensive acts both mediator base process. This mild, chemoselective, scalable, atom‐economical protocol is compatible with wide variety readily available functionalized aryl iodides epoxides, well terminating...
Efficient electron transport layer-free perovskite solar cells (ETL-free PSCs) with cost-effective and simplified design can greatly promote the large area flexible application of PSCs. However, absence ETL usually leads to mismatched indium tin oxide (ITO)/perovskite interface energy levels, which limits charge transfer collection, results in severe loss poor device performance. To address this, a polar nonconjugated small-molecule modifier is introduced lower work function ITO optimize...
A cooperative catalytic system comprising a palladium/XPhos complex and 5-norbornene-2-carboxylic acid was developed. This promotes two-component annulation reaction, allowing the construction of tetrahydronaphthalenes indanes that contain quaternary centers through consecutive Catellani-type C–H activation redox-relay Heck reaction. Inexpensive acts as mediator (20 mol %) in this process. mild, scalable, chemoselective protocol is compatible with wide variety readily available aryl iodides...
Abstract Despite recent achievements in the co‐reduction electrosynthesis of urea from nitrogen wastes and CO 2 , selectivity yield products remain fairly average because competition NITRR, RR, HER. Here, a strategy involving FeNC catalysts disperse with oxygen‐vacancy‐rich CeO (FeNC‐Ce) is illustrated, which reversible hydrogenation defects, bimetallic catalytic centers enable spontaneous switching between reduction paths NO 3 − . The FeNC‐Ce electrocatalyst exhibits an extremely high...
Perylene bisimide derivatives substituted with one and two tetraphenylethene moieties at 1 1,7-postions show distinct optical properties. The former displays characteristic emission features of perylene bisimides in solution red the aggregate state, while latter is nonemissive but highly red-emissive state.
Hyperbranched polyvinylsulfides have been prepared through a facile, metal‐free, radical induced “A 2 +B 3 ” thiol‐yne polymerization of 1,3,5‐tris(naphthalylethynyl) benzene and 1,4‐dithiolbenzene with three different input ratios. The resulting polymers exhibit excellent optical properties like high transparency very refractive index (RI) up to 1.7839, combined thermal stability ( T d5% 420 °C) solution processability. These make them ideal candidates as RI polymeric materials (HRIP) in...
A convergent and highly stereoselective [4+2] cycloaddition of in situ-generated ortho-Quinone methides (o-QMs) azlactone enols has been successfully developed through a triple Brønsted acid catalysis strategy. This protocol provides an efficient mild access to various densely functionalized dihydrocoumarins bearing adjacent quaternary tertiary stereogenic centers high yields with excellent diastereo- enantioselectivity.
Abstract A visible‐light photocatalytic generation of N‐centered hydrazonyl radicals has been accomplished for the first time. This approach allows efficient intramolecular addition radical to terminal alkenes, thus providing hydroamination and oxyamination products in good yields. Importantly, protocol involves deprotonation an NH bond oxidation radical, obviating need prepare photolabile amine precursors or stoichiometric use oxidizing reagents.
The research on self-healing polymers has been a hot topic. encapsulated-monomer/catalyst, supramolecular self-assembly and reversible or dynamic covalent bond formation are the prevailingly adopted strategies. alternative of irreversible is, however, to be further developed. In this contribution, hyperbranched poly(aroyltriazole)s PI PII sharing such mechanism were synthesized by our developed metal-free click polymerizations bis(aroylacetylene)s triazide. They processible have excellent...