Shangjun Chen

ORCID: 0000-0003-3582-4336
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About
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Research Areas
  • Photochromic and Fluorescence Chemistry
  • Cellular and Composite Structures
  • Catalytic Processes in Materials Science
  • Nanomaterials for catalytic reactions
  • Porphyrin and Phthalocyanine Chemistry
  • Mechanical Behavior of Composites
  • Photoreceptor and optogenetics research
  • Crystallization and Solubility Studies
  • Chinese history and philosophy
  • X-ray Diffraction in Crystallography
  • Polymer composites and self-healing
  • Luminescence and Fluorescent Materials
  • Photodynamic Therapy Research Studies
  • Supramolecular Self-Assembly in Materials
  • Electrocatalysts for Energy Conversion
  • Nanoplatforms for cancer theranostics
  • Supramolecular Chemistry and Complexes
  • Crystallography and molecular interactions
  • Molecular Sensors and Ion Detection
  • Structural Response to Dynamic Loads
  • Total Knee Arthroplasty Outcomes
  • High-Velocity Impact and Material Behavior
  • Catalytic C–H Functionalization Methods
  • Catalytic Cross-Coupling Reactions
  • Polydiacetylene-based materials and applications

Shanghai Normal University
2015-2025

Ministry of Education of the People's Republic of China
2025

Thermal Power Research Institute
2020-2024

Sichuan University
2023

West China Hospital of Sichuan University
2023

Shanghai University
2022-2023

Nanjing University of Posts and Telecommunications
2022

Xi'an Jiaotong University
2017-2021

First Affiliated Hospital of Jiamusi University
2018-2020

First Bethune Hospital of Jilin University
2017-2019

It is very challenging to realize well-controlled structural transformations in artificial supramolecules. Herein we report the construction of a novel family multi-bisthienylethene hexagons with precise control shape and size as well specific number photochromic units via coordination-driven self-assembly. These newly developed are highly sensitive responsive photostimuli, especially allowing for quantitative reversible supramolecular triggered by light irradiation.

10.1021/ja306748k article EN Journal of the American Chemical Society 2012-08-10

Abstract Understanding the catalytic mechanism of bimetallic nanocatalysts remains challenging. Here, we adopt an adsorbate mediated thermal reduction approach to yield monodispersed AuPd catalysts with continuous change Pd-Au coordination numbers embedded in a mesoporous carbonaceous matrix. The structure nanoalloys is well-defined, allowing for direct determination structure-property relationship. results show that Pd single atom and dimer are active sites base-free oxidation primary...

10.1038/s41467-019-09421-5 article EN cc-by Nature Communications 2019-03-29

The successful construction of porphyrin functionalized metallacycle in the confined cavity mesoporous carbon FDU-16 (3⊂C) is presented this study. Because high dispersity metallacycles within cavities, stability and activity porphyrin-containing were obviously improved. For example, 1O2 generation efficiency 3⊂C ca. 6-fold faster than that free metallaycles solution. Thus, resultant hybrid material has been successfully employed as a heterogeneous catalyst for photooxidation sulfides.

10.1021/jacs.8b02386 article EN Journal of the American Chemical Society 2018-04-06

A photochromic terarylene (BTO) containing a benzo[b]thiophene-1,1-dioxide unit as central ethene bridge was synthesized and characterized, exhibits good thermal stability fatigue resistance both in solution bulk crystals. When triggered by chemical ions, protons light, BTO can behave an absorbance fluorescence switch, leading to multi-addressable system. The different color changes of upon adding Cu2+ Hg2+ ions arise from the relative binding stoichiometry association affinities. titration...

10.1039/c2jm14973g article EN Journal of Materials Chemistry 2012-01-01

The completely C2-selective arylation of N-methylindole was achieved by using a reusable solid Pd catalyst and water as solvent without any other ligands or additives exclusion air. catalysts possess well-dispersed nanoparticles (∼1.5 nm), N-containing functional groups (∼11 wt %), uniform mesopores (∼5 nm). turnover frequency (TOF) is calculated to be 82 h–1.Arylations both N-H indoles N-protected with diaryliodonium salts were give the desired products in high excellent isolated yields...

10.1021/acscatal.5b02147 article EN ACS Catalysis 2015-12-29

A coordination-assisted pyrolysis procedure was adopted to encapsulate palladium (Pd) nanoparticles in a mesoporous carbonaceous matrix. X-ray diffraction and transmission electron microscopy measurements revealed that approximately 2.5 nm were highly dispersed inside the well-ordered porous framework. High-resolution TEM temperature-programmed hydride decomposition analysis demonstrated formation of interstitial carbon Pd lattice. Diffuse reflectance infrared Fourier transform spectroscopy...

10.1021/acscatal.6b02720 article EN ACS Catalysis 2017-02-02

In this study, heterogeneous palladium catalysts supported on ordered mesoporous cobalt oxide–carbon nanocomposites were applied to the water-mediated Suzuki coupling reaction of chlorobenzene and phenylboronic acid exhibited a high yield biphenyl (49%) under mild conditions free phase-transfer agents ligands. Product yields in aryl chlorides containing electron-withdrawing groups attached their benzene ring can reach approximately 90%. Thiol-functionalized silica, which trap soluble Pd...

10.1021/cs501356h article EN ACS Catalysis 2014-12-09

Supported gold nanoparticles are emerging catalysts for heterogeneous catalytic reactions, including selective hydrogenation. The traditionally used supports such as silica do not favor the heterolytic dissociation of hydrogen on surface gold, thus limiting its hydrogenation activity. Here we use catalyst particles partially embedded in pore walls mesoporous carbon with atoms occupying interstitial sites lattice. This allows improved electron transfer from to and, when chemoselective...

10.1038/s41467-020-18322-x article EN cc-by Nature Communications 2020-09-14

A photochemically active dithiazolethene BN was designed and synthesized, exhibiting a specific gated photochromism. That is, the photochromic reactivity of is prevented to great extent by BF(3), showing "Lock" gate.

10.1039/c1cc15824d article EN Chemical Communications 2011-11-10

A photochromic bisthienylethene derivative (BIT) containing two imidazole units has been synthesized and fully characterized. When triggered by chemical ions (Ag+), protons, light, BIT can behave as an absorbance switch, leading to a multiaddressable system. exhibits sequence-dependent responses via efficient interaction of the specific unit with protons Ag+. Furthermore, INHIBIT logic gate keypad lock three inputs are constructed unimolecular platform employing absorption mode at different...

10.1021/am4009506 article EN ACS Applied Materials & Interfaces 2013-06-04

Gold nanoparticles approximately 3 nm in diameter free of protecting agent were loaded onto less-interacting, self-assembling mesoporous carbon using a two-step carbonization method. The catalyst exhibits TOF value 478 and 31.2 h–1 at 25 0 °C, comparable to, much higher than an 8.9 gold-supported nanocatalyst, respectively, for the water-mediated selective oxidation benzyl alcohol. These results highlight improvement sorption dioxygen species on surface atoms gold low temperatures due to...

10.1021/cs501896c article EN ACS Catalysis 2014-12-28

An interesting dithienylethene derivative, <bold>BTE-EQ</bold>, bestows novel aggregation-induced emission (AIE) characteristics and aggregation-controlled photochromism properties, together with density functional theory calculations.

10.1039/c7tc00023e article EN Journal of Materials Chemistry C 2017-01-01

Abstract Traditional approaches for transition-metal catalyzed oxidative cross-coupling reactions rely on sp 2 -hybridized starting materials, such as aryl halides, and more specifically, homogeneous catalysts. We report a heterogeneous Pd-catalyzed radical relay method the conversion of heteroarene C( 3 )–H bond into ethers. Pd nanoparticles are supported an ordered mesoporous composite which, when compared with microporous activated carbons, greatly increases d charge because their strong...

10.1038/s41467-022-31967-0 article EN cc-by Nature Communications 2022-07-19

Supramolecular metal–organic cages, a class of molecular containers formed via coordination-driven self-assembly, have attracted sustained attention for their applications in catalysis, due to structural aesthetics and unique properties. Their inherent confined cavity is considered be analogous the binding pocket enzymes, facile tunability building blocks offers diverse platform enzyme mimics promote organic reactions. This minireview covers recent progress supramolecular coordination cages...

10.3390/chemistry4020036 article EN cc-by Chemistry 2022-05-18

A newly designed ratiometric fluorescent probe is applied in the sensing of biothiols.

10.1039/c9tb01671f article EN Journal of Materials Chemistry B 2019-01-01
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