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Chinese Journal of Chemistry 2024年第10期42卷 1093-1099页

作者： ying-xia wang Fang Zheng Dong-xia Song Bao-Yue Niu Lu-Qian Deng xian-Ming Zhang Key Laboratory of Magnetic Molecules and Magnetic Information Materials(Ministry of Education) Schoolof Chemistry and Materials ScienceShanxi Normal UniversityTaiyuanShanxi 030006China Key Laboratory of Interface Science and Engineering in Advanced Material(Ministry of Education) College of ChemistryTaiyuan University of TechnologyTaiyuanShanxi 030024China

The photocatalytic oxidative coupling of thiols is one of the most popular methods to synthesize the *** and its derivatives(TPAs)are promising for the above reaction,but suffer from the easy polymerization and difficult *** overcome these obstacles while controlling the photogenerated electrons transfer directly to target substrates,herein,we constructed one TPA-based metal-organic framework(MOF),(Me_(2)NH_(2))[Sr(TCBPA)]·DMA·3H_(2)O(1),by direct self-assembly of tris(4′-carboxybiphenyl)amine(H_(3)TCBPA)and photoredox inert strontium ion(Sr^(2+)).DFT calculations revealed that the valence band maximum(VBM)and the conduction band minimum(CBM)are mainly located on TCBPA^(3-),successfully inhibiting the undesirable electron migration to metal *** results indicated that 1 displays superior performance than homogeneous H_(3)TCBPA,which may result from the abundant π…π and C—H…π interactions between the well-arranged TCBPA^(3-)and the build-in electric field between the anionic framework and the Me_(2)NH^(2+).This work highlights that immobilizing TPAs into MOFs is one promising approach to designing heterogeneous photocatalysts for the synthesis of disulfides by oxidative coupling of thiols.

关键词： Triphenylamine Metal-organic frameworks Strontium Photooxidation Thiols Disulfides

A high dispersed Pt_(0.35)Pd_(0.35)Co_(0.30)/C as superior catalyst for methanol and formic acid electro-oxidation

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Chinese Chemical Letters 2014年第6期25卷 907-911页

作者： ying-xia wang Tie-Hong Chen Institute of New Catalytic Materials Science Key Laboratory of Advanced Energy Materials Chemistry(MOE)College of ChemistryCollaborative Innovation Center of Chemical Science and Engineering(Tianjin)Nankai University

Pt：Pd：Co ternary alloy nanoparticles were synthesized by sodium borohydride reduction under nitrogen, and were supported on carbon black as catalysts for methanol and formic acid electro-oxidation. Compared with Pt0.65C00.35/C, Pt/C, Pd0.65C00.35/C, and Pd/C catalyst, Pt0.35Pd0.35Co0.30/C exhibited relatively high durability and strong poisoning resistance, and the Pt-mass activity was 3.6 times higher than that of Pt/C in methanol oxidation reaction. Meanwhile, the Pt0.35Pd0.35Co0.30/C exhibited excellent activity with higher current density and higher CO tolerance than that of Pt0.6sCo0.35/C, Pt/C, Pd0.65C00.35/ C, and Pd/C in formic acid electro-oxidation.

关键词： Fuel cell Ternary alloy Formic acid oxidation Methanol electro-oxidation

Synthesis of fused pyran and arylbis(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)methane in ionic liquid

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Chinese Chemical Letters 2009年第4期20卷 387-390页

作者： Xue Sen Fan ying ying Qu Xin ying Zhang xia wang Jian Ji wang School of Chemistry and Environmental Sciences Henan Key Laboratory for Environmental Pollution Control Henan Normal University Xinxiang 453007 China

Promoted and mediated by an ionic liquid-[bmim][BF4], fused pyrans or arylbis（4-hydroxy-6-methyl-2-oxo-2H-pyran-3- yl）methanes were efficiently and selectively prepared from the reaction of aldehyde and 4-hydroxy-6-methyl-2-oxo-pyran with or without acetic anhydride. By using these novel procedures, pyrimidine nucleoside-fused pyran and arylbis（pyranon-3-yl）methane hybrids with potential biological activities were constructed.

关键词： Ionic liquid Fused pyran Arylbis(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)methane Pyrimidine nucleoside Green synthesis

Investigation of the interaction of carbofuran and DNA by voltammetry and fluorescence with the aid of chemometrics

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Chinese Chemical Letters 2010年第8期21卷 963-967页

作者： ying xia wang Yong Nian Ni Serge Kokot State Key Laboratory of Food Science and Technology Nanchang University Nanchang 330047 China Department of Chemistry Nanchang University Nanchang 330031 China School of Physical and Chemical Sciences Queensland University of Technology Brisbane QId 4001 Australia

The interactions of carbofuran and DNA were studied using voltammetry and fluorescence *** formation of carbofuran-DNA makes the current peak of DNA decreased by voltammetry *** binding number（n） and constant（Ka） for complex carbofuran-DNA were calculated to be 1.06±0.04 and 0.11±0.03mol^-1 L,respectively by fluorescence *** approach,such as singular value decomposition（SVD） was used to evaluate the number of spectral species in the drug-DNA binding *** the pure spectra and concentration profiles in the kinetic system were clearly deduced by multivariate curve resolution alternating least squares（MCR-ALS） with the initial estimates by evolving factor analysis（EFA）.

关键词： Carbofuran DNA Voltammetry Chemometrics

Synthesis and Characterization of Amphiphific Block Copolymer Containing PVP and Poly（5-benzyloxytrimethylene carbonate）

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Chinese Chemical Letters 2006年第2期17卷 239-242页

作者： ying xia wang Feng HE Ren Xi ZHUO Key Laboratory of Biomedical Polymers of Ministry of Education Department of Chemistry Wuhan University Wuhan 430072

Amphiphilic copolymer of 5-benzyloxytrimethylene carbonate （BTMC） with poly （vinyl pyrrolidone）（PVP） was successfully synthesized using immobilized porcine pancreas lipase （IPPL） or SnOct2 as catalyst. Hydroxyl terminated PVP, synthesized with 2-mercaptoethanol as a chain transfer reagent, was employed as a rnacroinitiator. The resulting copolymers were characterized by GPC, ^1H NMR and IR. Increasing the BTMC/PVP-OH feed ratio （[B]/[P]） resulted in the increase of Mn of corresponding copolymers and the decrease of Mw/Mn. Immobilized enzyme has comparable catalytic activity to SnOct2 for the copolymerization.

关键词： Amphiphilic copolymer end-functionalized PVP 5-benzyloxytrimethylene carbonate,immobilized enzyme ring-opening polymerization macroinitiator.

Fe_(2)Mn(μ_(3)-O)(COO)_(6) Cluster Based Stable MOF for Oxidative Coupling of Amines via Heterometallic Synergy

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Chinese Journal of Chemistry 2021年第11期39卷 2983-2989页

作者： ying-xia wang Hui-Min wang Pan Meng Dong-xia Song Zhikai Qi xian-Ming Zhang Key Laboratory of Magnetic Molecules and Magnetic Information Materials(Ministry of Education) Institute of Chemistry and CultureSchool of Chemistry and Material ScienceShanxi Normal UniversityLinfenShanxi041004 China College of Chemistry&Chemical Engineering Key Laboratory of Interface Science and Engineering in Advanced MaterialMinistry of EducationTaiyuan University of TechnologyNo.79 Yingze WestTaiyuanShanxi030024 China

The direct catalytic oxidative coupling of amines is one of the attracting methods for the synthesis of a variety of pharmaceutical or industrial needed *** earth-abundant manganese based salts,oxides,and complexes have been applied in this ***,these compounds suffered from difficult separation,large catalyst loading,complicated reactivation or indeterminate *** the facts that metal-organic frameworks(MOFs)with crystalline structure,precise composition,and enormous surface area have superior performance in heterogeneous catalytic reactions,herein,we introduced Mn into[Fe_(3)(μ_(3)-O)(CH_(3)COO)_(6)],one of the precursors for the preparation of stable MOFs,and got[Fe_(2)Mn(μ_(3)-O)(CH_(3)COO)_(6)]*** ligand replacement with biphenyl-3,4’,5-tricarboxylic acid(BPTC),heterometallic cluster-based[Fe_(2)Mn(μ_(3)-O)(BPTC)2(DMF)2(H_(2)O)](1)was *** expected,1 is stable and able to catalyze the homo-or cross-coupling of amines effectively and selectively with 0.9 mol%catalyst loading at room *** experiments indicated that the catalytic activity of 1 mainly stems from Mn sites and that Fe synergistically contributes to the ***,1 is recyclable and can be reused easily for at least 8 runs without obvious decrease in catalytic *** our knowledge,1 should be the first heterometallic cluster-based MOF with defined structure suitable for the synthesis of diverse imines from oxidative coupling of amines under mild conditions,which may shed light on the easy preparation of effective heterogeneous catalysts for organic synthesis.

关键词： Amines Metal-organic frameworks Manganese Oxidative coupling Heterometallic synergy

Metal-free synthesis of amphiphilic functional polycarbonates

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Chinese Chemical Letters 2007年第12期18卷 1528-1530页

作者： ying xia wang Jun Feng Feng He Ren Xi Zhuo Key Laboratory of Eco-textiles （Jiangnan University） Ministry of Education Wuxi 214122 China Department of Chemistry Key Laboratory of Biomedical Polymers of Ministry of Education Wuhan University Wuhan 430072 China

Amphiphilic block copolymers of poly（5-benzyloxy trimethylene carbonate）（PBTMC） and poly（ethylene glycol）（PEG） were synthesized through enzymatic polymerization using immobilized porcine pancreas lipase （IPPL）. The obtained copolymers with different compositions were characterized by GPC and IH NMR. The copolymer composition was in agreement with the feed ratio. The molecular weight of the copolymers showed an increasing trend with the decrease of PEG contents. MiceUes of the copolymers were formed by dialysis procedure, and characterized by transmission electron microscopy （TEM）.

关键词： Amphiphilic block copolymer Enzymatic polymerization Polycarbonate

Synergistic effect of Ni^(Ⅱ)and Co/Fe^(Ⅲ)in doped mixed-valence phosphonate for enhancing electrocatalytic oxygen evolution

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Green Energy & Environment 2022年第3期7卷 432-439页

作者： Juan-Juan Hou Jian-Tao Yuan Wei Zhang ying-xia wang xian-Ming Zhang Key Laboratory of Magnetic Molecules and Magnetic Information Materials(Ministry of Education) School of Chemistry and Material ScienceShanxi Normal UniversityLinfen041004China

Metal organophosphonates have been explored in energy-related fields due to their high chemical and thermal stability as a type of uniformly precursor,but only few of pristine metal organophosphonate are directly used for oxygen evolution reaction(OER)***,a mixedvalence iron phosphonate(Fe_(3)-ppat)has been constructed and applied to OER catalysis considered the potential active sites in pillars Fe^(Ⅱ)(-H_(2)O)_(4)(COO)_(2)and inorganic layers Fe^(Ⅲ)(μ_(2)–OH)PO_(3).Specifically,isostructural trimetallic framework Fe_(1.7)Co_(0.3)Ni_(1.0)-ppat possesses a minimum overpotential(291 mV),small Tafel slope(91.65 mV dec^(-1)),and high stability up to 83 *** enhanced catalytic performance could be mainly ascribed to the synergistic effect of Ni^(Ⅱ)equivalent occupancy in pillars and Co/Fe^(Ⅲ)in layers.

关键词： phosphonate stability organo

Harmonic Transfer Function Based Single-input Single-output Impedance Modeling of LCC-HVDC Systems

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Journal of Modern Power Systems and Clean Energy 2024年第4期12卷 1327-1332页

作者： Yang wang Fei xia ying wang xianyong xiao College of Electrical Engineering Sichuan UniversityChengdu 610065China

This study presents a harmonic transfer function(HTF)based single-input single-output(SISO)impedance modeling *** method converts an HTF from phase domain to sequence domain and then transforms it into an SISO impedance while preserving the frequency coupling information of different sequences and different *** of this method to a line-commutated converter based high-voltage direct current(LCC-HVDC)system are *** results demonstrate the accuracy of the derived SISO impedance,and a truncation-order selection is *** case study shows that the proposed method facilitates simpler impedance measurements and associated stability analysis.

关键词： Line-commutated converter based high-voltage direct current(LCC-HVDC) harmonic transfer function(HTF) single-input single-output(SISO)impedance frequency coupling

Interleukins in Epilepsy:Friend or Foe

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Neuroscience Bulletin 2024年第5期40卷 635-657页

作者： Yuan Dong xia Zhang ying wang Neuropsychiatry Research Institute The Affiliated Hospital of Qingdao UniversityQingdao UniversityQingdao266000China Program in Cellular and Molecular Medicine Boston Children’s HospitalBostonMA02115USA

Epilepsy is a chronic neurological disorder with recurrent unprovoked seizures,affecting~65 million *** in patients with epilepsy and animal models suggests a contribution of neuroinflammation to epileptogenesis and the development of ***(ILs),as one of the major contributors to neuroinflammation,are intensively studied for their association and modulatory effects on ictogenesis and *** are commonly divided into pro-and anti-inflammatory cytokines and therefore are expected to be pathogenic or neuroprotective in ***,both protective and destructive effects have been reported for many *** may be due to the complex nature of ILs,and also possibly due to the different disease courses that those ILs are involved *** this review,we summarize the contributions of different ILs in those processes and provide a current overview of recent research advances,as well as preclinical and clinical studies targeting ILs in the treatment of epilepsy.

关键词： Epilepsy Interleukins Neuroinflammation