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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

Crystal structures and thermal decomposition kinetics of lanthanide complexes with 3,4,5-trimethoxybenzoic acid and 1,10-phenanthroline

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science china.chemistry 2012年第7期 1285-1295页

作者： TANG Kun 1,2,ZHANG JianJun 1,2*,REN Ning 3,zheng JunRu 1,2,liU JingYu 1,2 & WU KeZhong 2 1 Experimental Center,Hebei normal university,Shijiazhuang 050016,china.2 college of chemistry & Material science,Hebei normal university,Shijiazhuang 050016,china.3 Department of chemistry,Handan college,Handan 056005,china

A series of lanthanide complexes with the 3,4,5-trimethoxybenzoic acid(3,4,5-tmoba) and 1,10-phenanthroline(phen),[Ln(3,4,5-tmoba) 3 phen] 2(Ln = Pr(1),Nd(2) and Ho(3)),have been synthesized and characterized by a series of techniques including elemental analysis,IR spectra,X-ray crystallography and TG/DSC-FTIR *** three complexes have two kinds of coordination modes,in which the Pr 3+ and Nd 3+ cations are nine-coordinated and the Ho 3+ cation is *** three-dimensional IR accumulation spectra of gaseous products for complexes 1-3 were analyzed and the gaseous products were identified by the typical IR spectra obtained from the 3D surface ***,we obtained the activation energy E of the first steps of complexes 1-3 by the integral isoconversional non-linear(NL-INT) method and discussed the non-isothermal kinetics of complexes 1-3 using the Malek ***,SB(m,n) was defined as the kinetic method of the first-step thermal *** thermodynamic parameters △G≠,△H≠ and △S≠ of activation at the peak temperature were also calculated.

关键词： 3 4 5-trimethoxybenzoic acid lanthanide complexes crystal structures non-isothermal kinetics thermodynamic parameters

Photocatalytic C(sp^(3))-H gem-Difluoroallylation and Alkylation with Alkenes via a Base-Assisted Formal 1,2-Hydrogen Atom Transfer of Amidyl Radicals

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Chinese Journal of chemistry 2024年第18期42卷 2203-2210页

作者： Meifang Tang Bingbing Feng Yanyang Bao Zhongtian Xu Chao Huang Hanliang zheng Gangguo Zhu Yanan Wang Zheliang Yuan Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials SciencesZhejiangNormalUniversity688YingbinRoadJinhuaZhejiang321004China

Compared to well-established 1,5-HAT of N-centered radicals,the synthetic applications of 1,2-HAT process were scarce due to the high barrier and constrained three-membered transition ***,we have developed a novel C(sp')-H gem-difluoroallylation via a base assisted formal 1,2-HAT of amidyl radicals with the reductive quenching cycle of *** transformation enables the efficient formation ofα-aminoalkyl radicals via 1,2-HAT and showcases good functional group *** preliminary mechanistic experiments,along withDensity Functional Theory(DFT)calculations demonstrate thefeasibility of 1,2-HAT of amidyl radicals,especially when assisted by a ***,our method also succeeds in the Giese addition of electron-deficient alkenes as well as styrene.

关键词： 1,2-Hydrogen atom transfer Amidyl radicals gem-Difluoroallylation Alkenes Photocatalysis Defluoroalkylation

GhCTSF1,a short PPR protein with a conserved role in chloroplast development and photosynthesis,participates in intron splicing of rpoC1 and ycf3-2 transcripts in cotton

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Plant Communications 2024年第6期5卷 213-229页

作者： Yuzhu Huo Mengxue Cheng Meiju Tang Meng Zhang Xiaofan Yang Yating zheng Tong Zhao Peng He Jianing Yu college of life sciences Shaanxi Normal UniversityXi’an 710119China

Cotton is one of the most important textile fibers *** crucial agronomic traits,leaves play an essential role in the growth,disease resistance,fiber quality,and yield of cotton *** repeat(PPR)proteins are a large family of nuclear-encoded proteins involved in organellar or nuclear RNA *** a virus-induced gene silencing assay,we found that cotton plants displayed variegated yellow leaf phenotypes with decreased chlorophyll content when expression of the PPR gene GhCTSF1 was ***1 encodes a chloroplast-localized protein that contains only two PPR *** of GhCTSF1 substantially reduces the splicing efficiency of rpoC1 intron 1 and ycf3 intron *** of function of the GhCTSF1 ortholog EMB1417 causes splicing defects in rpoC1 and ycf3-2,leading to impaired chloroplast structure and decreased photosynthetic rates in *** also found that GhCTSF1 interacts with two splicing factors,GhCRS2 and *** in GhCRS2 and GhWTF1 severely affect intron splicing of rpoC1 and ycf3-2 in cotton,leading to defects in chloroplast development and a reduction in *** results suggest that GhCTSF1 is specifically required for splicing rpoC1 and ycf3-2 in cooperation with GhCRS2 and GhWTF1.

关键词： chloroplast RNA splicing PPR protein cotton photosynthesis

Tunable Phase Structure of Side-chain liquid Crystalline Polymers Enabled by Molecular Engineering of Dual Mesogenic Cores

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Chinese Journal of Polymer science 2024年第10期42卷 1459-1469,I0009页

作者： Wen-Huan Yao Lan-Sheng liu Jie Zhao Yan-Xia Wang An-Zhi Ma zheng-Rui Ma Lan-Ying Zhang Ruo-Chen Lan college of chemistry and Chemical Engineering Hunan UniversityChangsha410082China Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education Key Laboratory of Eco-Environmental Polymer Materials of Gansu ProvinceCollege of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou730070China Department of Materials science and Engineering College of EngineeringPeking UniversityBeijing100871China Institute of Advanced Materials&Key Lab of Fluorine and Silicon for Energy Materials and chemistry of Ministry of Education College of Chemistry and Chemical EngineeringJiangxi Normal UniversityNanchang330022China

A series of novel side-chain liquid crystalline(SCLC)copolymers were synthesized by attaching two distinct mesogenic units,namely a chiral cholesteryl-based monomer(M1)and an achiral biphenyl-based monomer(M2),to a poly(3-mercaptopropylmethylsiloxane)(PMMS)backbone via thiol-ene click *** influence of side chain composition on the self-assembly behavior and phase structures of these SCLC copolymers was systematically investigated using different *** indicate that three distinct liquid crystalline phases and four unique molecular configurations were identified within the polymer series,with the emergence of the liquid crystalline phase being a synergistic outcome of the two distinct side *** study underscores the critical influence of side chain dimensions,rigidity,and spatial volume on the self-assembly structures and phase characteristics of liquid crystalline polymers,providing valuable insights for the rational design and development of advanced functional materials with tailored properties.

关键词： liquid crystalline copolymers Self-assembly Phase structure Chiral molar ratio

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美国理科课程中个人和社会发展目标演变研究

外国教育研究 2003年第10期30卷 27-30页

作者：周仕东郑长龙东北师范大学化学学院吉林长春130024

当代理科课程正处于改革的关键时期,其目标的定位成为课程改革的首要任务,从历史的角度探寻个人和社会发展目标已经成为当代美国理科课程的重要课题。

关键词：美国理科课程个人社会发展目标课程改革课程目标

Graphitic carbons:preparation,characterization,and application on K-ion batteries

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Rare Metals 2024年第9期43卷 4056-4075页

作者： Kang-Zhe Cao Jia-Hui Ma Yu-lian Dong Yu Duan Run-Tian zheng Dharani Bundhooa Hui-Qiao liu Yong Lei college of chemistry and Chemical Engineering Xinyang Normal UniversityXinyang 464000China Xinyang Key Laboratory of Low-Carbon Energy Materials Xinyang 464000China Fachgebiet Angewandte Nanophysik Institut fur Physik&IMN MacroNanoTechnische Universitat Ilmenau98693 IlmenauGermany Laboratory of Inorganic Materials chemistry(CMI) University of NamurB-5000 NamurBelgium

K-ion batteries(KIBs)have drawn much attention due to the abundant potassium reserves and wide accessibility as well as high energy density,which can be designed for large-scale energy storage *** the most promising anode materials for KIBs,graphitic carbons,especially those with an intermediate structure between the crystalline graphite and amorphous carbons become a hot research focus because of the improved rate capability and enhanced diffusion-controlled capacity at low voltage ***,we first review the structures of graphitic carbons in the view of graphitic domains and the structure changes in their K-ion intercalation ***,we summarize the preparation mechanisms and characterizations of graphitic carbons and the influence factors in their degree of ***,we illustrate the strategies to optimize their K-ion storage properties from four aspects,namely graphitic domain design,microstructure engineering,electrochemical active component regulation,and defect ***,we propose the issues that urgently need to be solved in graphitic carbons and the possible *** hope that this view could offer some inspiration for the further designing and optimizing of graphitic carbons for practical KIBs.

关键词： Graphitic carbon K-ion battery Anode Graphite Structure design

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当代西方综合理科课程的基本理念及其启示

外国教育研究 2002年第8期29卷 30-34页

作者：周仕东郑长龙东北师范大学化学学院吉林长春130024

综合理科课程在西方国家已经经历了大约半个世纪的历程,并将得到越来越多人士的广泛赞同。它在理论和实践上都基本形成了完整的体系,对我国实现素质教育有重要的参考价值。

关键词：综合理科课程西方国家中国课程结构科学素质

Bifunctional noble-metal-free cocatalyst coating enabling better coupling of photocatalytic CO_(2)reduction and H_(2)O oxidation on direct Z-scheme heterojunction

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Nano Research 2024年第6期17卷 5022-5030页

作者： Wei Zhao Weihao Mo Yan Zhang lingxuan Hu Yiyi zheng Zhulei Chen Xiangyue Niu Yuling Zhao lichun liu Shuxian Zhong Song Bai Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China college of Biological Chemical Sciences and Engineering and Nanotechnology Research InstituteJiaxing UniversityJiaxing 314001China college of Geography and Environmental sciences Zhejiang Normal UniversityJinhua 321004China college of Chemical and Biological Engineering Zhejiang UniversityHangzhou 310058China School of Biological and Chemical Engineering Panzhihua UniversityPanzhihua 617000China

Selective loading of spatially separated redox cocatalysts on direct Z-scheme heterojunctions holds great promise for advancing the efficiency of artificial photosynthesis,which however is limited to the photodeposition of noble metal cocatalysts and the fabrication of hollow double-shelled semiconductor ***,the co-exposure of discrete cocatalyst and semiconductor increases the product diversity when both the exposed sites of which participate in CO_(2)***,we present a facile and versatile protocol to overcome these limitations via surface coating of Z-scheme heterojunctions with bifunctional noble-metal-free *** Cu_(2)O/Fe_(2)O_(3)(CF)as a model heterojunction and layered Ni(OH)_(2)as a model cocatalyst,it is found that Ni(OH)_(2)lying on the surfaces of Cu_(2)O and Fe_(2)O_(3)separately co-catalyzes the CO_(2)reduction and H_(2)O *** experimental and theoretical investigation reveals that the Ni(OH)_(2)outer layer:(i)mitigates the charge recombination in CF and balances their transfer and consumption;(ii)reduces the rate-determining barriers for CO_(2)-to-CO and H_(2)O-to-O_(2)conversion,(iii)suppresses the side proton reduction occurring on CF,and(iv)protects the CF from component *** expected,the redox reactions stoichiometrically proceed,and significantly enhanced photocatalytic activity,selectivity,and stability in CO generation are achieved by the stacked Cu_(2)O/Fe_(2)O_(3)@Ni(OH)_(2)in contrast to *** study demonstrates the significance of the synergy between bifunctional cocatalysts and Z-scheme heterojunctions for improving the efficacy of overall redox reactions,opening a fresh avenue for the rational design of artificial photosynthetic systems.

关键词： Z-scheme heterojunction bifunctional cocatalyst CO_(2)reduction H_(2)O oxidation stoichiometric redox reaction

Hollow Multishelled Structure: Synthesis chemistry and Application

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Chemical Research in Chinese Universities 2024年第3期40卷 346-393页

作者： MAO Dan WANG Chao li Wei ZHOU liang liU Jian zheng Zjian ZHAO Yong CAO An-min WANG Shutao HUANG Jiaxing HUO Fengwei CHEN Hongyu MAI liqiang YU Ranbo WANG lianzhou LU Yunfeng YU Chengzhong YANG Qihua YANG Zhenzhong ZENG Hua Chun ZHAO Hujun TANG Zhiyong ZHAO Dongyuan WANG Dan State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChineseAcademy of SciencesBeijing 100190P.R.China Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of SciencesBejing 100190P.R.China School of Fashion and Textiles The Hong Kong Polytechnic UniversityHong Kong SARP.R.China Department of chemistry Fudan UniversityShanghai 200433P.R.China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070P.R.China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023P.R.China School of chemistry Beihang UniversityBejing 100191P.R.China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular sciences Institute of ChemistryChinese Academy of SciencesBeijing 100190P.R.China CAS Key Laboratory of Bio-inspired Materials and Interfacial science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190P.R.China School of Engineering Westlake UniversityHangzhou 310024P.R.China School of Flexible Electronics(Future Technologies) Nanjing Tech UniversityNanjing 211816P.R.China School of science Westlake UniversityHangzhou 310024P.R.China School of Materials science and Engineering Wuhan University of TechnologyWuhan 430070P.R.China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083P.R.China School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQueensland 4072Australia college of life science and Technology Bejing University of Chemical TechnologyBejing 100029P.R.China School of chemistry and Molecular Engineering East China Normal UniversityShanghai 200241P.R.China college of life sciences Zhejiang Normal UniversityJinhua 321004P.R.China Department of Chemical Engineering Tsinghua UniversityBeijing 100

Hollow multishelled structure(HoMS),a promising and complex multifunctional structural system,features at least two shells that are separated by internal *** unique structure endows it with numerous advantages including low density,high loading capacity,large specific surface area,facilitated mass transport,and multiple spatial confinement *** the past twenty years,benefiting from the booming development of synthesis methods,various HoMS materials have been prepared and show promising applications in diverse areas.

关键词： Hollow multishelled structure Synthesis chemistry Energy storage Catalysis Electromagnetic wave absorption Drug delivery Sensor