A5100739326- Fullerene Chemistry and Applications
- Graphene research and applications
- Carbon Nanotubes in Composites
- Synthesis and Properties of Aromatic Compounds
- Supramolecular Chemistry and Complexes
- Organic Electronics and Photovoltaics
- Boron and Carbon Nanomaterials Research
- Crystallography and molecular interactions
- Conducting polymers and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Supramolecular Self-Assembly in Materials
- Chemical Synthesis and Analysis
- Molecular Junctions and Nanostructures
- Advanced Chemical Physics Studies
- Perovskite Materials and Applications
- Porphyrin and Phthalocyanine Chemistry
- Asymmetric Hydrogenation and Catalysis
- Magnetism in coordination complexes
- Photochemistry and Electron Transfer Studies
- Synthetic Organic Chemistry Methods
- Organometallic Complex Synthesis and Catalysis
- Sulfur-Based Synthesis Techniques
- Molecular spectroscopy and chirality
- Thin-Film Transistor Technologies
- Advanced Sensor and Energy Harvesting Materials
Fudan University
2007-2025
China Electronic Product Reliability and Environmental Test Institute
2024
Ningbo University
2024
Second Affiliated Hospital of Nanjing Medical University
2024
Changchun Institute of Applied Chemistry
2014-2023
University of Science and Technology of China
2020-2023
Chinese Academy of Sciences
2014-2023
State Key Laboratory of Polymer Physics and Chemistry
2007-2023
Adare Pharma Solutions (United States)
2021-2022
University of Chinese Academy of Sciences
2013-2019
Emission thermal quenching is commonly observed in quasi-2D perovskite emitters, which causes the severe drop luminescence efficiency for light-emitting diodes (PeLEDs) during practical operations. However, this issue often neglected and rarely studied, root cause of has not been completely revealed now. Here, we develop a passivation strategy via 2,7-dibromo-9,9-bis (3'-diethoxylphosphorylpropyl)-fluorene to investigate suppress quenching. The agent can effectively passivate...
The selective synthesis of three kinds supermolecular topologies, molecular Borromean ring, [2]catenane and metallarectangle based on two alkynyl ligands is presented. Remarkably, the NIR photothermal conversion efficiency was found to improve as π–π stacking increases.
Intricately interwoven topologies are continually being synthesized and ultimately equally versatile significant at the nanoscale level; however, reports concerning ravel structures, which highly entwined new topological species, extremely rare fraught with tremendous synthesis challenges. To solve problem, a tetrapodontic pyridine ligand L1 two types of olefinic bond units Cp*M-based building blocks (E1, M=Rh; E2, M=Ir) featuring large conjugated planes was prepared to perform...
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXT[email protected]82 Anion. An Unusually Stable MetallofullereneTakeshi Akasaka, Takatsugu Wakahara, Shigeru Nagase, Kaoru Kobayashi, Markus Waelchli, Kazunori Yamamoto, Masahiro Kondo, Shingo Shirakura, Okubo, Yutaka Maeda, Tatsuhisa Kato, Kako, Yasuhiro Nakadaira, Ritsuko Nagahata, Xiang Gao, Eric Van Caemelbecke, and Karl M. KadishView Author Information Graduate School of Science Technology Niigata University, 950-2181, Japan Institute for...
We promoted order−disorder transformation of poly(3-hexylthiophene) (P3HT) in solution by ultrasonic oscillation which substantially improved crystallinity its pure film. P3HT with low molecular weight (Mw) dispersed very well p-xylene solvent and few aggregates generated the solution. For high Mw, results suggested coexistence two phases: disordered coils ordered microcrystals suspension. Upon oscillating, more precursors due to increased self-assembly from configuration, resulting...
In this article, the uniaxial alignment of poly(3-hexylthiophene) (P3HT) nanofibrils with a π-π stacking growth direction in which P3HT chains adopt flat-on conformation was obtained by solvent directional evaporation using glass cover slide and poly(dimethylsiloxane) (PDMS) sheet to press film carbon disulfide (CS(2)) atmosphere. By controlling CS(2) vapor pressure during film-forming process, we got well-oriented whose order parameter reached as high 0.97. The orientation induced...
With the help of retrosynthetic analysis, we have realized highly anticipated stereoselective synthesis a topologically chiral Solomon link, by taking advantage coordination-driven self-assembly and induction axially ligands. Combination ligands (R or S)-2,2′-diethoxy-1,1′-binaphthyl-6,6′-bis(4-vinylpyridine) (R-L S-L) with binuclear iridium complex [Cp*2Ir2(DHBQ)(OTf)2] (Ir-B(OTf)2, H2DHBQ = 2,5-dihydroxy-1,4-benzoquinone) allows diastereoselective topological enantiomers P (Ir-1P) M...
Although a large number of novel supramolecular topologies featuring half-sandwich [Cp*Rh] units have been reported, investigations into the properties these architectures are astoundingly rare. In addition, bidentate ligands employed to prepare species remained relatively homogeneous (i.e., symmetrical bis(pyri-4-dyl) ligands). To address paucities in field, unsymmetrical ligand L2 and rarely reported pyri-3-dyl L3, all bearing aromatic phenazine groups (an N-heterocyclic analog...
Abstract Quasi‐2D perovskites with enlarged exciton binding energy and tunable bandgap are appealing for application in perovskite light‐emitting diodes (PeLEDs). However, wide n domains distribution is commonly formed solution‐processed quasi‐2D films due to the uncontrollable crystallization behavior, which leads low device performance. Here, process successfully regulated narrow by introducing compound additive of ZrO 2 nanoparticles (NPs) Cryptand complexant. NPs can avoid segregation...
Herein, we have successfully achieved the stereoselective synthesis of two chiral radial [5]catenanes in a single step through self-assembly bidentate ligands containing l-alanine residues and binuclear half-sandwich organometallic rhodium(III)/iridium(III) clips. Remarkably, these exhibit complex stereochemical structures as revealed by single-crystal X-ray diffraction. The eight units their solid-state all planar chirality, interlocking between molecular macrocycles exhibits...
A stable diamagnetic monoanion of the La@C82 isomer was electrochemically prepared and isolated in order to disclose its cage symmetry. By measuring 13C NMR spectrum anion, it determined for first time that has Cs symmetry, as also confirmed by density functional calculations.
A simple solution-phase method that uses chemically generated p-benzoquinone dianions (Q2-) as the reductant in selective generation of either C60•- or C602- is described. The electron transfer reduction C60 by Q2- occurs via stepwise from to acetonitrile benzonitrile. thus used starting material synthesis RxC60 (where x = 2 for R C6H5CH2 and 1 o-xylyl) reaction with benzyl bromide α,α‘-dibromo-o-xylene. Theoretical calculations predict 1,4-isomer (C6H5CH2)2C60 should be selectively formed,...
Uniaxially aligned triisopropylsilylethynyl pentacene (TIPS-pentacene) crystals over a large area were fabricated using zone-casting technique. The array of TIPS-pentacene displayed high orientation degree with dichroic ratio (DR) 0.80. arranged c axis perpendicular to the substrate and long ribbon corresponded TIPS-pentacene. properties solutions processing parameters shown influence formation oriented crystalline array. Solvent low boiling point (such as chloroform) favoured ribbon-like...
We have successfully constructed a chiral linear [3]catenane stereoselectively by coordination-driven self-assembly using ditopic monodentate ligand containing l-valine residues with binuclear half-sandwich organometallic rhodium(III) unit. Furthermore, increasing the steric hindrance of amino acid in ligand, [2]catenane was obtained, which can be regarded as factor catenane from topological viewpoint. Notably, resulting molecular catenanes all exhibit complex coconformational mechanical...
Continuous-wave (CW) lasing in quasi-two-dimensional (2D) perovskite-based distributed feedback cavities has been achieved at room temperature; however, CW microcavity lasers comprising Bragg reflectors (DBRs) have rarely prepared using solution-processed quasi-2D perovskite films because the roughness of significantly increases intersurface scattering loss microcavity. Herein, high-quality spin-coated gain were an antisolvent to reduce roughness. The highly reflective top DBR mirrors...
Reactions of C(60) with oxygen nucleophiles HO(-) and CH(3)O(-) are revisited in PhCN the presence PhCH(2)Br. Different from previous results that such reactions lead to formation complex mixtures, well-structured oxazolines obtained when is involved, while di- tetraadducts methoxy benzyl addends engaged. The followed by situ vis-near-IR spectroscopy, which reveals further information for reactions.
The presence or absence of s-block metal ions induces reversible structural transformation molecular knots.
The synthesis and electrochemical spectroscopic characterization of fullerene derivatives the type R2C60 where R = C6H5CH2, 2-BrC6H4CH2, 3-BrC6H4CH2, or 4-BrC6H4CH2 R4C60 C6H5CH2 are reported. first step in involves an electron transfer between C602- RBr, a similar initial electron-transfer occurs [(C6H5CH2)2C60]2- C6H5CH2Br during (C6H5CH2)4C60. On basis NMR UV−visible data, investigated identified as 1,4-adducts C60,whereas isolated isomer (C6H5CH2)4C60 is characterized possessing C1...
The structural, spectral, and electrochemical properties of two (C6H5CH2)4C60 isomers are reported. One is designated as the 1,4;1,4-(C6H5CH2)4C60 isomer other 1,4;1,2-isomer (C6H5CH2)4C60. were isolated by HPLC from products obtained a reaction between [(C6H5CH2)2C60]2- C6H5CH2Br. X-ray data show that differ one another position only benzyl group that, in each compound, four addends close proximity. Both undergo three one-electron reductions PhCN containing 0.1 M tetra-n-butylammonium...
During the reaction of reduced C60 with benzyl bromide in benzonitrile, a novel cis-1 adduct, 1,4-dibenzyl-2,3-cyclic phenylimidate (1), was obtained rather than expected product 1,4-dibenzyl C60. The structure compound 1 analyzed by X-ray single-crystal diffraction, identifying presence five-membered heterocycle at [5,6] bond One heteroatoms is assigned as nitrogen atom; however, identity other heteroatom cannot be determined unambiguously crystallography due to similarity between and...
A reinvestigation of the reaction between C60(2-) and benzyl bromide in benzonitrile containing 0.1 M tetra-n-butylammonium perchlorate (TBAP) has shown that there are more products than previously reported. Use a silica rather "Buckyclutcher I" column for HPLC purification led to isolation two unattained mixture, one which was identified as 1,2-(PhCH2)2C60 by UV-vis NMR . The earlier incorrectly assigned methanofullerene C61HPh X-ray single-crystal diffraction. electrochemistry genuine...
Different local morphologies of poly(3-hexylthiophene) (P3HT, Mw = 87 000 and 30 000–40 g mol − 1) are grown on a patterned substrate, which is composed octadecyltrichlorosilane (OTS area) stripes silicon wafer (SiOx area), via dip coating from the aged solutions. Bundles P3HT (Mw nanorods SiOx area long nanofibrillar crystals OTS generated simultaneously one-day-aged 1 mg ml solution, while oriented parallel to axis pattern form seven-days-aged solution (1 1). dimensional sizes aggregate in...