Chengxi Li

ORCID: 0009-0006-7767-6326
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Research Areas
  • Synthesis and Properties of Aromatic Compounds
  • Luminescence and Fluorescent Materials
  • Supramolecular Self-Assembly in Materials
  • Liquid Crystal Research Advancements
  • Polydiacetylene-based materials and applications
  • Origins and Evolution of Life
  • Catalytic Cross-Coupling Reactions
  • Catalytic C–H Functionalization Methods
  • Metamaterials and Metasurfaces Applications
  • Pickering emulsions and particle stabilization
  • Photoreceptor and optogenetics research
  • Photochemistry and Electron Transfer Studies
  • Organoboron and organosilicon chemistry
  • Porphyrin and Phthalocyanine Chemistry
  • Click Chemistry and Applications
  • Photonic Crystals and Applications
  • Chemical Synthesis and Analysis
  • Asymmetric Hydrogenation and Catalysis
  • Biochemical and Molecular Research
  • Luminescence Properties of Advanced Materials

National Center for Nanoscience and Technology
2018-2023

University of Chinese Academy of Sciences
2016-2023

Peking University
2023

Beijing National Laboratory for Molecular Sciences
2023

Center for NanoScience
2018-2021

Xiangtan University
2018

Shanghai Institute of Organic Chemistry
2016-2018

Existing circularly polarized luminescence materials can hardly satisfy the requirements of both large dissymmetry factor and high luminescent quantum yield, which hinders their practical applications. Here, we present a soft photonic crystal film embedded with chiral nanopores that possesses excellent performance as well yield when loaded various dyes. Benefitting from retention imprinted liquid arrangement, not only endow dyes properties, but also effectively avoid severe aggregation guest...

10.1038/s41467-023-41884-5 article EN cc-by Nature Communications 2023-09-30

We herein report a transition-metal-free cross-coupling between secondary alkyl halides/mesylates and aryl/alkenylboronic acid, providing expedited access to series of nonchiral/chiral coupling products in moderate good yields. Stereospecific SN2-type is developed for the first time with alkenylboronic acids as pure nucleophiles, offering an attractive alternative stereospecific transition-metal-catalyzed C(sp(2))-C(sp(3)) cross-coupling.

10.1021/jacs.6b06285 article EN Journal of the American Chemical Society 2016-08-12

Abstract Recently, materials with circularly polarized luminescence (CPL) properties have attracted substantial attention because they offer new perspectives in fundamental research and wide applications photonics, bio‐encoding, catalysis, so forth. Such importance has recently promoted the development of CPL‐active from traditional realm organics to newly released areas inorganics. Due advantages inorganic nanomaterials stability, high luminescent quantum efficiency, material diversity,...

10.1002/agt2.148 article EN cc-by Aggregate 2021-12-08

Itaconate is an important antimicrobial and immunoregulatory metabolite involved in host-pathogen interactions. A key mechanistic action of itaconate through the covalent modification cysteine residues via Michael addition, resulting "itaconation". However, it unclear whether has other regulatory mechanisms. In this work, we discovered a novel type post-translational by promiscuous antibody enrichment data analysis with open-search strategy further confirmed as lysine "itaconylation". We...

10.1021/jacs.3c02332 article EN Journal of the American Chemical Society 2023-06-05

The helical twisting tendency of liquid crystals (LCs) is generally governed by the inherent configuration chiral emitter. Here, we introduce multistage inversion supramolecular chirality as well circularly polarized luminescence (CPL) manipulating ratio single enantiomeric emitters (R-PCP) to LC monomers (5CB). Increasing content R-PCP from 1 wt % 3 inverted helix LCs left-handed right-handed, accompanying a CPL sign changed positive negative. biaxiality emitters, steric effect...

10.1002/anie.202315136 article EN Angewandte Chemie International Edition 2023-10-30

Abstract Stereospecific nucleophilic substitution was achieved for the first time with arylboronic acids as nucleophiles. This transition‐metal‐free coupling between chiral α‐aryl‐α‐mesylated acetamides and provided access to a series of α,α‐diaryl excellent enantioselectivity moderate good yields. The CONH functionality proved be crucial bridging reactants promoting reaction. Efficient syntheses cannabinoid CB 1 receptor ligand, antidepressant ( S )‐diclofensine, key building block...

10.1002/anie.201712829 article EN Angewandte Chemie International Edition 2018-04-24

Multi-channel adjustable CPL in chiral liquid crystals was investigated, where a well-organized structure distributed double thin layers exhibits high |<italic>g</italic><sub>lum</sub>| for the input signal to encrypt information transmission.

10.1039/d1ma00368b article EN cc-by-nc Materials Advances 2021-01-01

Chiroptical materials with circularly polarized luminescence (CPL) activity have aroused a lot of interest. One essential factor for evaluating the features CPL-active is dissymmetry (glum), which represents circular polarization emitted light. Essentially, practical application CPL, most important issue to greatly improve glum value. Recently, benefiting from flexible and efficient design in hybrid donor–acceptor systems, more examples involving value amplification been reported. In this...

10.1021/acs.jpclett.1c02282 article EN The Journal of Physical Chemistry Letters 2021-09-01

Semiconductor quantum dots showing controlled circularly polarized luminescence were achieved through co-assembling with chiral peptide dendron gelator in water.

10.1039/c8na00216a article EN cc-by-nc Nanoscale Advances 2018-10-26

Abstract Upconverted circularly polarized luminescence (UC-CPL) is coined by combining two individual concepts of photon upconversion (UC) and (CPL). It has exhibited great performance potential applications in various fields, arousing enormous attention from scientists. The emergence, amplification modulation UC-CPL can be adjusted through regulation the UC process assembled state emitters. Benefitting abundant upconverted photoluminescence mechanisms, we flexibly build systems with...

10.1246/cl.200771 article EN cc-by Chemistry Letters 2020-12-09

Abstract Among the enticing issues of chiral origins are: how chirality is born from initial achiral units and mechanisms for transfer information. In this work, by combining a physical vortex seeds, general process revealed to generate supramolecular polymers C 3 ‐symmetric molecules. The symmetry‐broken assemblies molecules could work as seeds initiate polymerization either homologous or heterologous monomers. Concomitantly, fragmentation polymer caused during nucleation‐elongation stages...

10.1002/anie.202206332 article EN Angewandte Chemie International Edition 2022-06-25

Circularly polarized luminescence (CPL) of chiral materials responsive to external stimuli has drawn widespread attention due their important applications in smart photonic materials. Here, a CPL‐active emitter derived from guanidine‐substituted 1,8‐naphthalimide ( R /S‐1) is reported, which could emit tunable circularly light through regulating the situation protonation/deprotonation aqueous, as well solvent polarity. Tunable fluorescence emission protonated compound can be observed,...

10.1002/adpr.202100287 article EN cc-by Advanced Photonics Research 2021-12-22

We constructed chiral supramolecular nanofibers for light harvesting based on symmetry-breaking, and these can generate near-infrared circularly polarized luminescence (CPL) with high dissymmetry factor (glum) through a synergistic energy transfer chirality process. Firstly, the achiral molecule BTABA was assembled into symmetry-breaking assembly using seeded vortex strategy. Subsequently, endow two acceptors, Nile Red (NR) Cyanine 7 (CY7), chirality, as well chiroptical properties. CY7...

10.1039/d3nr01515g article EN Nanoscale 2023-01-01

Abstract The helical twisting tendency of liquid crystals (LCs) is generally governed by the inherent configuration chiral emitter. Here, we introduce multistage inversion supramolecular chirality as well circularly polarized luminescence (CPL) manipulating ratio single enantiomeric emitters ( R ‐PCP) to LC monomers (5CB). Increasing content ‐PCP from 1 wt % 3 inverted helix LCs left‐handed right‐handed, accompanying a CPL sign changed positive negative. biaxiality emitters, steric effect...

10.1002/ange.202315136 article EN Angewandte Chemie 2023-10-30

Abstract Among the enticing issues of chiral origins are: how chirality is born from initial achiral units and mechanisms for transfer information. In this work, by combining a physical vortex seeds, general process revealed to generate supramolecular polymers C 3 ‐symmetric molecules. The symmetry‐broken assemblies molecules could work as seeds initiate polymerization either homologous or heterologous monomers. Concomitantly, fragmentation polymer caused during nucleation‐elongation stages...

10.1002/ange.202206332 article EN Angewandte Chemie 2022-06-25

Correction for ‘Signal transmission encryption based on dye-doped chiral liquid crystals via tunable and efficient circularly polarized luminescence’ by Chengxi Li et al. , Mater. Adv. 2021, 2 3851–3855, DOI: https://doi.org/10.1039/D1MA00368B.

10.1039/d2ma90045a article EN cc-by Materials Advances 2022-01-01
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