Query:
学者姓名:黄细河
Refining:
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract :
Copper-halide clusters emerge as a promising category of photoluminescent materials, attributed to their rich structural and photophysical properties in solid states. However, their environment-dependent emission quenching and challenges in film formation pose obstacles to their application in electroluminescent (EL) devices. Herein, we present Cu4Br4(AcNP)(2), a sublimable copper-halide cluster chelated by a bidentate N<^>P ligand with a donor-acceptor configuration. The steric and electronic modification effects of the dimethylacridine group not only induce predominant (metal + halide)-to-ligand charge transfer and intra-ligand charge transfer characters in the excited states of the cluster, ensuring efficient and short-lived thermally activated delayed fluorescence, but also effectively prevent concentration quenching in films by avoiding intermolecular pi-pi stacking. As a consequence, 40 wt% doped and non-doped devices achieve maximum external quantum efficiencies of 12.8% and 10.2%, respectively. We anticipate that the current study offers insights into the design of copper-halide clusters for fabricating highly efficient EL devices, especially for non-doped EL devices.
Cite:
Copy from the list or Export to your reference management。
GB/T 7714 | Lu, Xin , Wu, Shao-Jie , Wang, Ya-Shu et al. Efficient doped and non-doped light-emitting diodes based on a TADF-emitting Cu4Br4 cluster [J]. | INORGANIC CHEMISTRY FRONTIERS , 2024 , 11 (9) : 2775-2783 . |
MLA | Lu, Xin et al. "Efficient doped and non-doped light-emitting diodes based on a TADF-emitting Cu4Br4 cluster" . | INORGANIC CHEMISTRY FRONTIERS 11 . 9 (2024) : 2775-2783 . |
APA | Lu, Xin , Wu, Shao-Jie , Wang, Ya-Shu , Wei, Shan-Yue , Meng, Lingyi , Huang, Xi-He et al. Efficient doped and non-doped light-emitting diodes based on a TADF-emitting Cu4Br4 cluster . | INORGANIC CHEMISTRY FRONTIERS , 2024 , 11 (9) , 2775-2783 . |
Export to | NoteExpress RIS BibTex |
Version :
Abstract :
Precise and efficient management of disulfide bonds will offer multiple merits for the development of organosulfur chemistry, pharmacology, and life sciences. However, the current S-S coupling synthesis strategy encounters bottlenecks in conforming to efficient separation of products, which limits its industrial-scale application. In view of the superoxide radical-triggered reaction mechanism of S-S coupling, this study demonstrates a multifunctional in situ-assembled 0D/1D S-scheme heterojunction photocatalyst (MAPB-T-COF) constructed by MAPbBr(3) quantum dots and imine covalent organic framework (COF) nanowires under the guidance of band engineering management. MAPB-T-COF exhibits a superior photocatalytic performance in the conversion of 4-methylbenzenethiol (4-MBT) to p-tolyl disulfide (PTD) under blue LED illumination. Specifically, it achieves an impressive 100% yield with a record photon quantum efficiency as high as 12.76%, as well as universal availability for various derivatives, rivaling all the incumbent similar reaction systems. This study not only highlights the effectiveness and merits of nanoscale S-scheme heterojunction photocatalysis for the S-S coupling reaction but also achieves a perfect trade-off between high quantum efficiencies and strong chemical redox potentials. In addition, the free radical that triggers the reaction was monitored in situ by an electron paramagnetic resonance (EPR) instrument, which provided meaningful insights into the reaction mechanism. This study may inspire the development of photoelectric conversion devices, photoelectrodes, and photocatalysts utilizing nanoscale, low-dimensional heterojunctions.
Keyword :
0D/1D S-scheme heterojunction 0D/1D S-scheme heterojunction COF NWs COF NWs MAPbBr(3) QDs MAPbBr(3) QDs photocatalyst photocatalyst S-Scoupling S-Scoupling
Cite:
Copy from the list or Export to your reference management。
GB/T 7714 | Wang, Ying , Li, Han , Lin, Qianying et al. Nanoscale 0D/1D Heterojunction of MAPbBr3/COF Toward Efficient LED-Driven S-S Coupling Reactions [J]. | ACS CATALYSIS , 2023 , 13 (23) : 15493-15504 . |
MLA | Wang, Ying et al. "Nanoscale 0D/1D Heterojunction of MAPbBr3/COF Toward Efficient LED-Driven S-S Coupling Reactions" . | ACS CATALYSIS 13 . 23 (2023) : 15493-15504 . |
APA | Wang, Ying , Li, Han , Lin, Qianying , Zhao, Jiwu , Fang, Xiao , Wen, Na et al. Nanoscale 0D/1D Heterojunction of MAPbBr3/COF Toward Efficient LED-Driven S-S Coupling Reactions . | ACS CATALYSIS , 2023 , 13 (23) , 15493-15504 . |
Export to | NoteExpress RIS BibTex |
Version :
Abstract :
The increasing dangerous chemical pollutants led by shipping accidents call for the new pollutant treatment strategy. In this work, a new three-component hybrid {[(BiI6)I-13]center dot 2I(3)center dot(H-BPA)(4)}(n) (1) can be used in dye degradation in seawater. The highly interesting feature of 1 lies in its unique 1-D Z-shape [(BiI6)I-13](n)(6-) infinite chain constructed from the I center dot center dot center dot I contacts between mono-nuclear (BiI6)(3-) anions and I-13(3-) polyiodide anions. Finally, the hydrogen bonds between [(BiI6)I-13](n)(6-) polyanions and H-BPA(2+) cations contribute to the formation a quasi-3-D network. Specifically, 1 exhibits the wide absorption zone from ultraviolet to visible regions and high charge-separation efficiency, hinting its application in visible-light catalysis. As expected, 1 represents photocatalytic activity for the degradation of rhodamine B in seawater with degradation ratio of 90%, and the photocatalytic performance is stable. This work might provide new photocatalytic material for pollutant treatment in shipping accidents.
Keyword :
asymmetric viologen asymmetric viologen inorganic hybrid inorganic hybrid iodobismuthate iodobismuthate organic– organic– photocatalytic degradation photocatalytic degradation photocurrent response photocurrent response
Cite:
Copy from the list or Export to your reference management。
GB/T 7714 | Zhuang, Xueqiang , Wu, Qiqi , Huang, Xihe et al. A Three-Component Hybrid Templated by Asymmetric Viologen Exhibiting Visible-Light-Driven Photocatalytic Degradation on Dye Pollutant in Maritime Accident Seawater [J]. | CATALYSTS , 2021 , 11 (5) . |
MLA | Zhuang, Xueqiang et al. "A Three-Component Hybrid Templated by Asymmetric Viologen Exhibiting Visible-Light-Driven Photocatalytic Degradation on Dye Pollutant in Maritime Accident Seawater" . | CATALYSTS 11 . 5 (2021) . |
APA | Zhuang, Xueqiang , Wu, Qiqi , Huang, Xihe , Li, Haohong , Lin, Tianjin , Gao, Yali . A Three-Component Hybrid Templated by Asymmetric Viologen Exhibiting Visible-Light-Driven Photocatalytic Degradation on Dye Pollutant in Maritime Accident Seawater . | CATALYSTS , 2021 , 11 (5) . |
Export to | NoteExpress RIS BibTex |
Version :
Abstract :
Treatment of bis(diphenylphosphino)methane (dppm) and 2-(diphenylphosphanyl)pyridine (dpppy) with Cu(CH3CN)(4)BF4 afforded a dinuclear Cu(I) complex [Cu-2(dpppy)(2)(dppm)(CH3CN)](BF4)(2)center dot 3CH(2)Cl(2) (1). Complex 1 was structurally characterized by X-ray single-crystal analysis and its photophysical properties were studied in detail. It crystallizes in triclinic space group P (1) over bar with a = 13.0834(8), b = 13.5568(8), c = 21.8544(11) angstrom, alpha = 76.090(5)degrees, beta = 80.803(5)degrees, gamma = 64.582(6)degrees, V = 3391.3(3) angstrom(3), Z = 2, M-r = 1507.42, D-c = 1.476 g/cm(3), F(000) = 1532, GOOF = 1.071, the final R = 0.0700 for 9041 observed reflections with I > 2 sigma(I) and wR = 0.2063 for all data. The complex contains a Cu-2-core structure surrounded by one dppm and two dpppy ligands in a head-to-head arrangement. In the crystalline phase, complex 1 exhibits bright bluish-green photoluminescence (lambda(max) = 488 nm) with high quantum yield (phi = 0.57) at room temperature. It is still a relatively high emission quantum yield (phi = 0.36) in doped PMMA thin film with 20 wt% dopant of complex 1. The emission peaks of 1 in dichloromethane solution and doped PMMA (20 wt%) thin films are 510 and 494 nm, respectively, showing a very slight bathochromic shift compared to that in crystalline phase. This phenomenon might be attributed to its rigid conformation that precludes the possible distortion of copper centers in the excited state.
Keyword :
copper(I) complex copper(I) complex crystalline structure crystalline structure thermally activated delayed fluorescence thermally activated delayed fluorescence
Cite:
Copy from the list or Export to your reference management。
GB/T 7714 | Yu Wen-Si , Huang Chun-Hua , Huang Xi-He . Synthesis, Structure and Photophysical Properties of a Dinuclear Copper(I) Complex Based on PShosphino-pyridine and Diphosphine Mixed-ligands [J]. | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2021 , 40 (2) : 175-181 . |
MLA | Yu Wen-Si et al. "Synthesis, Structure and Photophysical Properties of a Dinuclear Copper(I) Complex Based on PShosphino-pyridine and Diphosphine Mixed-ligands" . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY 40 . 2 (2021) : 175-181 . |
APA | Yu Wen-Si , Huang Chun-Hua , Huang Xi-He . Synthesis, Structure and Photophysical Properties of a Dinuclear Copper(I) Complex Based on PShosphino-pyridine and Diphosphine Mixed-ligands . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2021 , 40 (2) , 175-181 . |
Export to | NoteExpress RIS BibTex |
Version :
Abstract :
Two copper(I) iodide tetramers, namely, [mu(2)-1,3-bis(diphenylphosphanyl)pro-pane-kappa P-2:P']di-mu(3)-iodido-di-mu(2)-iodido- [1- (pyridin-3-yl)ethan-1-one-kappa N] tetracopper (I) dichlorome thane disolv ate, [Cu4I4(C6H7NO)(2)(C27H26P2)(2)]center dot 2CH(2)Cl(2) (CuL3), and [mu(2)-1,3-bis(diphenylphosphanyl)propane-kappa P-2:P']di-mu(3)-iodido-di-mu(2)-iodido-[1-(pyridin-4-yl)ethan-1-one-kappa N]tetracopper(I), [Cu4I4(C6H7NO)(2)(C24I26P2)(2)] (CuL4), have been synthesized from reactions of CuI, 1,3-bis(diphenylphosphanyl)propane (dppp) and 3- or 4-acetylpyridine (3/4-acepy). The complexes were characterized by elemental analysis, IR spectroscopy, singlecrystal X-ray diffraction (XRD), powder XRD and photoluminescence spectroscopy. Both complexes possess a stair-step [Cu4I4] cluster structure with a crystallographic inversion centre located in the middle of a Cu2I2 ring (Z' =1/2). The dppp ligands each adopt a bidentate coordination mode that bridges two Cu' centres on one side of the [Cu4I4] cluster and the acepy ligands act as terminal ligands. The solid-state samples of similar complexes show highly efficiency thermally activated delayed fluorescence (TADF) at room temperature. At ambient temperature, both CuL3 and CuL4 exhibit photoluminescence, with a maximum emission in the region 560-580 nm and with short emissive decay times, but only phosphorescence was observed at 77 K. The narrow gaps between the higher lying singlet state and the triplet state, Delta E(S-1-T-1), also confirm the presence of TADF. Structure analysis and consideration of photoluminescence indicates that the position of the acetyl group on the heterocyclic ligand has an obvious influence on the structural arrangement, on intermolecular interactions and on the observed photophysical properties.
Keyword :
acetylpyridine acetylpyridine bis(diphenyphosphanyl)propane bis(diphenyphosphanyl)propane cluster cluster copper(I) iodide copper(I) iodide crystal structure crystal structure photoluminescence photoluminescence TADF TADF tetramer tetramer thermally activated delayed fluorescence thermally activated delayed fluorescence
Cite:
Copy from the list or Export to your reference management。
GB/T 7714 | Cao, Bing-Jun , Li, Ran , Huang, Xi-He . Synthesis, structure and photophysical properties of two tetranuclear copper(I) iodide complexes based on acetylpyridine and diphospnine mixed ligands [J]. | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2021 , 77 : 61-, . |
MLA | Cao, Bing-Jun et al. "Synthesis, structure and photophysical properties of two tetranuclear copper(I) iodide complexes based on acetylpyridine and diphospnine mixed ligands" . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 77 (2021) : 61-, . |
APA | Cao, Bing-Jun , Li, Ran , Huang, Xi-He . Synthesis, structure and photophysical properties of two tetranuclear copper(I) iodide complexes based on acetylpyridine and diphospnine mixed ligands . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2021 , 77 , 61-, . |
Export to | NoteExpress RIS BibTex |
Version :
Abstract :
A novel stilbene-based salicylhydrazone compound {systematic name: (E)-4,4'-(ethene-1,2-diyl)bis[(N'E)-N'-(2-hydroxybenzylidene)benzohydrazide] dimethyl sulfoxide disolvate, C30H24N4O4 center dot 2C(2)H(6)OS or L center dot 2DMSO} was synthesized and characterized by single-crystal X-ray diffraction, powder X-ray diffraction and luminescence spectroscopy. The title compound crystallizes in the monoclinic space group P2(1)/c, with half a symmetry-independent L molecule and one dimethyl sulfoxide (DMSO) solvent molecule in the asymmetric unit. The L molecule adopts an almost planar structure, with a small dihedral angle between the planes of the stilbene and salicylhydrazone groups. There are multiple pi-pi stacking interactions between adjacent L molecules. The DMSO solvent molecules act as proton donors and acceptors, forming hydrogen bonds of various strengths with the L molecules. In addition, the geometry optimization of a single molecule of L and its luminescence properties either in solution, as a solvated solid or as a desolvated solid were studied. The compound shows an aggregation-induced emission (AIE) effect and exhibits switchable luminescence colouration in the solid state by the simple removal or re-addition of the DMSO solvent.
Keyword :
crystal structure crystal structure luminescence luminescence salicylhydrazone salicylhydrazone stilbene stilbene
Cite:
Copy from the list or Export to your reference management。
GB/T 7714 | Fang, Zong-Bin , Zhang, Bin , Yang, Qi-Zheng et al. Solvent-assisted planar structure of a stilbene-based salicylhydrazone compound: crystal structure, solvent- and aggregation-induced emission, and switchable luminescence colouration [J]. | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2020 , 76 : 734-, . |
MLA | Fang, Zong-Bin et al. "Solvent-assisted planar structure of a stilbene-based salicylhydrazone compound: crystal structure, solvent- and aggregation-induced emission, and switchable luminescence colouration" . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 76 (2020) : 734-, . |
APA | Fang, Zong-Bin , Zhang, Bin , Yang, Qi-Zheng , Zheng, Wenxu , Hu, Xiao-Lin , Huang, Xi-He et al. Solvent-assisted planar structure of a stilbene-based salicylhydrazone compound: crystal structure, solvent- and aggregation-induced emission, and switchable luminescence colouration . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2020 , 76 , 734-, . |
Export to | NoteExpress RIS BibTex |
Version :
Abstract :
When the chiral coordination polymers were composed of achiral molecules, the deracemization of the bulk product remains a great challenge if without any chiral induction. The Viedma ripening theory was adopted herein to help the achievement of mirror symmetry breaking for the bulk chirality of two chiral coordination polymers. The enantiomeric excess of the bulk chirality for the first compound is about 100%, which means absolute asymmetric synthesis. The deracemization degree of the bulk chirality for the second compound fluctuates occasionally. Further study has discussed the different deracemization degree of the bulk chirality for two compounds with the consideration of enantioselective incorporation in crystal cluster.
Cite:
Copy from the list or Export to your reference management。
GB/T 7714 | Wu, Shu-Ting , Zhang, Yu-Sheng , Zhang, Bin et al. Viedma Ripening of Chiral Coordination Polymers Based on Achiral Molecules [J]. | CRYSTAL GROWTH & DESIGN , 2019 , 19 (5) : 2537-2541 . |
MLA | Wu, Shu-Ting et al. "Viedma Ripening of Chiral Coordination Polymers Based on Achiral Molecules" . | CRYSTAL GROWTH & DESIGN 19 . 5 (2019) : 2537-2541 . |
APA | Wu, Shu-Ting , Zhang, Yu-Sheng , Zhang, Bin , Hu, Xiao-Lin , Huang, Xi-He , Huang, Chang-Cang et al. Viedma Ripening of Chiral Coordination Polymers Based on Achiral Molecules . | CRYSTAL GROWTH & DESIGN , 2019 , 19 (5) , 2537-2541 . |
Export to | NoteExpress RIS BibTex |
Version :
Abstract :
Naphthalenediimides, an attractive class of electron-deficient organic dyes with rich redox and photoredox properties, have been investigated extensively as building blocks for coordination networks or metal-organic frameworks in recent decades. However, most of the available work has focused on d-block metal cations rather than f-block lanthanide ions, whose complexes exhibit a large variability in coordination numbers. In this article, four coordination polymers composed of naphthalenediimides and lanthanide cations, namely catena-poly[[[tris(nitrato-kappa O-2,O')lanthanide]-bis{mu-N,N'-bis[(1-oxidopyridin-1-ium-3-yl)methyl]-1,8 4,5-naphthalenetetracarboxdiimide-kappa O-2:O'}-[tris(nitrato-kappa O-2,O')lanthanide]-mu-N,N'-bis[(1-oxidopyridin-1-ium-3-yl)methyl]-1,8:4,5-naphthalenetetracarboxdiimide-kappa O-2:O'] methanol disolvate], {[Ln(C26H16N4O4)(1.5)-(NO3)(3)]center dot CH3OH}(n), with Ln = Eu, 1, Gd, 2, Dy, 3, and Er, 4, have been successfully synthesized under hydrothermal conditions. Single-crystal X-ray diffraction analyses revealed that the four compounds are isomorphic and that each asymmetric unit contains one nine-coordinated Ln centre, one and a half diimide ligands, three nitrate anions and one uncoordinated methanol molecule. In addition, each metal centre is surrounded by nine O atoms in a distorted tricapped trigonal-prismatic geometry. Two centres are bridged by two cis ligands to form a ring, which is further bridged by trans ligands to generate one-dimensional chains. Neighbouring chains are stacked via pi-pi interactions between pyridine rings to give a two-dimensional structure, which is stabilized by pi-pi interactions between naphthalene rings, forming the final three-dimensional supermolecular network. Solid-state optical diffuse-reflectance spectral studies indicate that compound 4 is a potential wide band gap semiconductor.
Keyword :
coordination polymer coordination polymer crystal structure crystal structure lanthanide lanthanide naphthalenediimide naphthalenediimide nine-coordinate nine-coordinate semiconductor semiconductor
Cite:
Copy from the list or Export to your reference management。
GB/T 7714 | Xiang, Zheng , Shan, Yue-Bin , Li, Tao et al. Four isostructural lanthanide(III) coordination compounds based on a new N-oxydic pyridyl naphthalenediimide ligand: synthesis and characterization [J]. | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2019 , 75 : 38-, . |
MLA | Xiang, Zheng et al. "Four isostructural lanthanide(III) coordination compounds based on a new N-oxydic pyridyl naphthalenediimide ligand: synthesis and characterization" . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 75 (2019) : 38-, . |
APA | Xiang, Zheng , Shan, Yue-Bin , Li, Tao , Huang, Chang-Cang , Huang, Xi-He , Lin, Mei-Jin . Four isostructural lanthanide(III) coordination compounds based on a new N-oxydic pyridyl naphthalenediimide ligand: synthesis and characterization . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2019 , 75 , 38-, . |
Export to | NoteExpress RIS BibTex |
Version :
Abstract :
This work shows the solar-driven dehydrogenative coupling of methane to ethane at room temperature. A solar-to-C2H6 energy conversion efficiency of 0.08% was achieved on the polar surface of Au/ZnO porous nanosheets (NSs), where methane C-H bonds are polarized and dissociated by the local electric field normal to the polar {001} plane, and finally converted into ethane and hydrogen through a radical coupling pathway. Mechanistic studies suggest that the Au-plasmon-induced resonance energy transfer modulates charge carrier energetics to trigger the stoichiometric conversion. Hot electrons reduce protons to H-2, which is the rate-determining step of methane coupling.
Cite:
Copy from the list or Export to your reference management。
GB/T 7714 | Meng, Lingshu , Chen, Zhenye , Ma, Zhiyun et al. Gold plasmon-induced photocatalytic dehydrogenative coupling of methane to ethane on polar oxide surfaces [J]. | ENERGY & ENVIRONMENTAL SCIENCE , 2018 , 11 (2) : 294-298 . |
MLA | Meng, Lingshu et al. "Gold plasmon-induced photocatalytic dehydrogenative coupling of methane to ethane on polar oxide surfaces" . | ENERGY & ENVIRONMENTAL SCIENCE 11 . 2 (2018) : 294-298 . |
APA | Meng, Lingshu , Chen, Zhenye , Ma, Zhiyun , He, Sha , Hou, Yidong , Li, Hao-Hong et al. Gold plasmon-induced photocatalytic dehydrogenative coupling of methane to ethane on polar oxide surfaces . | ENERGY & ENVIRONMENTAL SCIENCE , 2018 , 11 (2) , 294-298 . |
Export to | NoteExpress RIS BibTex |
Version :
Abstract :
Two lanthanide-organic frameworks [Ln(HPIDC)(m-bdc)center dot 1.5H(2)O](n) (Ln = Eu 1 or Tb 2; H3PIDC = 2-(4-pyridyl)-1H-imidazole-4,5-dicarboxylic acid; m-H(2)bdc = 1,3-benzenedicarboxylic acid) were synthesized under hydrothermal conditions. Compounds 1 and 2 are all of a 3D 6-connected pcu topology. There are uncoordinated nitrogen atoms in the molecule, indicating that the uncoordinated pyridine groups and imidazole groups can serve as functional groups. We tested their luminescence detection ability for cations and anions. Fluorescence measurements show that two compounds (1 and 2) can detect Cr2+ ions and Cr2O72- anions with high selectivity and sensitivity, which suggests that the two Ln-MOFs are promising functional luminescent sensor materials for sensing metal ions and anions.
Cite:
Copy from the list or Export to your reference management。
GB/T 7714 | Huang, X. H. , Shi, L. , Ying, S. M. et al. Two lanthanide metal-organic frameworks as sensitive luminescent sensors for the detection of Cr2+ and Cr2O72- in aqueous solutions [J]. | CRYSTENGCOMM , 2018 , 20 (2) : 189-197 . |
MLA | Huang, X. H. et al. "Two lanthanide metal-organic frameworks as sensitive luminescent sensors for the detection of Cr2+ and Cr2O72- in aqueous solutions" . | CRYSTENGCOMM 20 . 2 (2018) : 189-197 . |
APA | Huang, X. H. , Shi, L. , Ying, S. M. , Yan, G. Y. , Liu, L. H. , Sun, Y. Q. et al. Two lanthanide metal-organic frameworks as sensitive luminescent sensors for the detection of Cr2+ and Cr2O72- in aqueous solutions . | CRYSTENGCOMM , 2018 , 20 (2) , 189-197 . |
Export to | NoteExpress RIS BibTex |
Version :
Export
Results: |
Selected to |
Format: |