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Chinese Journal of Structural Chemistry 2021年第4期40卷 482-486,407页

作者： ZHANG Hui-Xin ZHANG Meng-Yao ZHANG Ying-Ying ZENG Yong-Fei liu gui-yan Tianjin Key Laboratory of Structure and Performance for Functional Molecules Key Laboratory of Inorganic-organic Hybrid Functional Material Chemistry(Ministry of Education)College of ChemistryTianjin Normal UniversityTianjin 300387China

A new Cu(Ⅱ) complex,[Cu_(4)Cl_(6)O(1-TrTz)_(4)]where 1-TrTz is 1-trityl-1H-[1,2,4]triazole,was synthesized by the reaction of 1-trityl-1H-[1,2,4]triazole with two hydrated cupric chlorides,and its structure was characterized by X-ray single-crystal diffraction.[Cu4Cl6O(1-TrTz)4]is of monoclinic system,space group P21/c,a=12.5024(13),b=26.400(3),c=28.588(3)A,β=112.807(4)°,V=8698.1(16)A^(3),Z=4,ρcalc=1.411 g/cm^(3),μ=1.265 mm^(–1),F(000)=3772,the final R=0.1293 and w R=0.3644 for 55774 observed reflections (I>2s(I)),R(all data)=0.1972,w R(all data)=0.3989,completeness to theta of 25.242 is 99.9%and GOF=*** the structure of[Cu_(4)Cl_(6)O(1-TrTz)_(4)],the central O atom is tetrahedral and is coordinated with four Cu *** distance between copper and oxygen bond is 1.909(6)*** addition,the catalytic property of this complex was investigated and it could effectively catalyze the Ullmann coupling reaction of various (hetero)aryl chlorides with azoles.

关键词： Cu(II)complex 1-trityl-1H-[1 2 4]triazole Ullmann coupling reaction azoles

Synthesis, Crystal Structure and Catalytic Activity of a Pd-PEPPSI Complex Bearing Bromine Group

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Chinese Journal of Structural Chemistry 2019年第3期38卷 429-433页

作者： LI Ying HAN Fang-Wai XU Zi-yang WANG Ru yan Chen-Xin OU You-Jing LU Qian liu gui-yan ZENG Yong-Fei Tianjin Key Laboratory of Structure and Performance for Functional Molecules Key Laboratory of Inorganic-organic Hybrid Functional Material Chemistry (Tianjin Normal University) Ministry of Education College of Chemistry Tianjin Normal University

A new Pd-PEPPSI complex(2) with the bromo groups on the para-positions of N-aryl moieties of NHC has been synthesized and characterized by NMR and X-ray single-crystal diffraction. Complex 2 crystallizes in monoclinic, space group P2_1/c with a = 11.8790(8), b = 14.3038(10), c = 15.9905(11) ?, β = 101.291(2)°, V = 2664.4(3) ?3, Z = 4, D_c = 1.722 Mg/m^3, μ = 3.913 mm^(-1), F(000) = 1352, the final R = 0.0682 and wR = 0.1914 for 15113 observed reflections(I > 2σ(I)), R(all data) = 0.0970, w R(all data) = 0.2115, completeness to theta of 25.00 is 100.0% and GOOF = 1.035. Influenced by the electron-withdrawing bromo groups, the Pd-PEPPSI complex(2) showed high catalytic activity for the Suzuki-Miyaura cross-coupling reactions of aryl chlorides and arylboronic acids with a low catalyst loading(0.05 mol%) at room temperature in air.

关键词： Pd-PEPPSI complex crystal structure catalytic activity Suzuki-Miyaura cross-coupling aryl chlorides

Synthesis,Crystal Structure and Catalytic Activity Palladium(Ⅱ)Complexes Containing Bulky Azole Ligands

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Chinese Journal of Structural Chemistry 2020年第9期39卷 1669-1674,1556页

作者： ZHANG Meng-Yao ZHANG Ying-Ying ZHANG Hui-Xin WANG Shen WANG Ya-Qi ZENG Yong-Fei liu gui-yan Tianjin Key Laboratory of Structure and Performance for Functional Molecules Key Laboratory of Inorganic-organic Hybrid Functional Material Chemistry(Tianjin Normal University)Ministry of EducationCollege of ChemistryTianjin Normal UniversityTianjin 300387China

Bulky azole ligands in combination with PdCl2 provide three new palladium(II)*** these complexes,as pre-catalysts,have high catalytic efficiency for the Suzuki-Miyaura cross-coupling reactions of sterically hindered aryl chlorides and good to high yields are obtained with low catalysts loadings(0.1 mol%)under mild conditions in air.

关键词： palladium(II)complexes crystal structure catalytic activity Suzuki-Miyaura cross-coupling sterically hindered aryl chlorides

半夹芯式16电子化合物CpCo(S2C2B(10)H(10))与重氮乙酸乙酯及联烯三元反应体系

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无机化学学报 2017年第3期33卷 487-492页

作者：刘贵锋燕红南京大学化学化工学院配位化学国家重点实验室南京210093 中国林科院林产化学工业研究所南京210042

半夹芯式碳硼烷16e金属有机化合物Cp Co(S2C2B10H10)与重氮乙酸乙酯及联烯在室温下反应,生成化合物1和2。在化合物1和2中,一分子重氮乙酸乙酯与一分子联烯以头-头方式插入Co-B键之间使碳硼烷B(3)/(6)位发生B-H键活化生成B-C键,另有一分... 详细信息

半夹芯式碳硼烷16e金属有机化合物Cp Co(S2C2B10H10)与重氮乙酸乙酯及联烯在室温下反应,生成化合物1和2。在化合物1和2中,一分子重氮乙酸乙酯与一分子联烯以头-头方式插入Co-B键之间使碳硼烷B(3)/(6)位发生B-H键活化生成B-C键,另有一分子重氮乙酸乙酯使Co-S断裂形成硫叶立德。分别采用红外、核磁、元素分析、质谱和单晶X射线衍射等表征方法对化合物1和2进行了结构表征。

关键词：碳硼烷联烯重氮乙酸乙酯 B-H键活化

Offload Strategy for Edge Computing in Satellite Networks Based on Software Defined Network

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Computers, Materials & Continua 2025年第1期82卷 863-879页

作者： Zhiguo liu Yuqing gui Lin Wang Yingru Jiang Communication and Network Laboratory Dalian UniversityDalian116622China College of Environment and Chemical Engineering Dalian UniversityDalian116622China

Satellite edge computing has garnered significant attention from researchers;however,processing a large volume of tasks within multi-node satellite networks still poses considerable *** sharp increase in user demand for latency-sensitive tasks has inevitably led to offloading bottlenecks and insufficient computational capacity on individual satellite edge servers,making it necessary to implement effective task offloading scheduling to enhance user *** this paper,we propose a priority-based task scheduling strategy based on a Software-Defined Network(SDN)framework for satellite-terrestrial integrated networks,which clarifies the execution order of tasks based on their ***,we apply a Dueling-Double Deep Q-Network(DDQN)algorithm enhanced with prioritized experience replay to derive a computation offloading strategy,improving the experience replay mechanism within the Dueling-DDQN ***,we utilize the Deep Deterministic Policy Gradient(DDPG)algorithm to determine the optimal resource allocation strategy to reduce the processing latency of *** results demonstrate that the proposed d3-DDPG algorithm outperforms other approaches,effectively reducing task processing latency and thus improving user experience and system efficiency.

关键词： Satellite network edge computing task scheduling computing offloading

维普期刊数据库评论

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TDGL方程的微扰理论

物理学报 2002年第1期51卷 6-9页

作者：刘天贵颜家壬潘留仙湖南师范大学物理系长沙410081

在一阶近似下 ,获得了微扰对TDGL(TimeDependentGinzburg Landau)方程的静态孤子解的影响 ,即求得了孤子参数随时间慢变量的变化情况和一阶修正的一般表达式。

关键词：静态孤子解孤子微扰论 TDGL方程非线性演化方程稳态孤子解量子力学

Manufacture the conducting polymer with light

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Science China Chemistry 2025年第1期68卷 8-9页

作者： yang Li Tianyu Li yan Ji Baoguang liu College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology) Nanjing University of Posts & Telecommunications

Poly(3,4-ethylenedioxythiophene) (PEDOT), heralded as the “king” of conducting polymers, is esteemed in bioelectronics for its mixed electronic and ionic conductivity, mechanical properties compatible with biological tissues, tunable healing ability and stability in diverse environments [1]. Based on additive manufacturing of three-dimensional structures,PEDOT realizes the implementation in the efficient production of flexible bioelectronics, the construction of intricate electrode-neural implantations, and the development of smart brain-computer-interfaces [2].

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氧化石墨烯/环氧树脂复合材料特性研究

塑料科技 2020年第4期48卷 10-13页

作者：刘桂艳武汉华夏理工学院湖北武汉430223

以氧化石墨烯(GO)为原料,制得氢氧化铝官能团化的氧化石墨烯(Al-GO),并与环氧树脂(EP)共混,制备了不同GO及Al-GO用量的GO/EP和Al-GO/EP复合材料。对复合材料的微观形貌进行表征,研究了填料的用量对复合材料力学性能、导热性能及玻璃化... 详细信息

以氧化石墨烯(GO)为原料,制得氢氧化铝官能团化的氧化石墨烯(Al-GO),并与环氧树脂(EP)共混,制备了不同GO及Al-GO用量的GO/EP和Al-GO/EP复合材料。对复合材料的微观形貌进行表征,研究了填料的用量对复合材料力学性能、导热性能及玻璃化转变温度的影响。结果表明:加入Al-GO后,材料表面呈现出韧性断裂;当GO和Al-GO用量为3%时,复合材料的拉伸强度均为最大值;热导率随着填料用量增加不断提高;在Al-GO用量为3%时,复合材料的玻璃化转变温度(Tg)比纯EP提高了8℃。

关键词：氧化石墨烯环氧树脂氢氧化铝力学性能热性能

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弱势群体犯罪研究

当代法学 2007年第6期21卷 147-149页

作者：刘桂艳王平吉林司法警官职业学院吉林省长春北郊监狱吉林长春130000

弱势群体犯罪越来越引起学者的重视,进一步研究弱势群体犯罪的成因、犯罪类型、犯罪特点及预防措施对构建和谐社会、减少犯罪具有重要的现实意义。

关键词：弱势群体犯罪责任预防措施

Boosting cationic and anionic redox activity of Li-rich layered oxide cathodes via Li/Ni disordered regulation

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Journal of Energy Chemistry 2025年第1期100卷 533-543页

作者： Zewen liu Zhen Wu Hao Wang Xudong Zhang Yuanzhen Chen Yongning liu Shengwu Guo Shenghua Chen yanli Nan yan liu State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University School of Materials Science and Engineering Xi'an University of Architecture and Technology Hefei Advanced Computing Center Operation Management Corp Ltd Network Information Center Xi'an Jiaotong University

Lithium-rich layered oxides （LLOs） are increasingly recognized as promising cathode materials for nextgeneration high-energy-density lithium-ion batteries （LIBs）.However,they suffer from voltage decay and low initial Coulombic efficiency （ICE） due to severe structural degradation caused by irreversible O ***,we introduce a three-in-one strategy of increasing Ni and Mn content,along with Li/Ni disordering and TM–O covalency regulation to boost cationic and anionic redox activity simultaneously and thus enhance the electrochemical activity of *** target material,Li1.2Ni0.168Mn0.558Co0.074O2（L1）,exhibits an improved ICE of 87.2%and specific capacity of 293.2 mA h g-1and minimal voltage decay of less than 0.53 m V cycle-1over 300 cycles at 1C,compared to Li1.2Ni0.13Mn0.54Co0.13O2（Ls）(274.4 mA h g-1for initial capacity,73.8%for ICE and voltage decay of 0.84 mV/cycle over 300 cycles at 1C).Theoretical calculations reveal that the density of states （DOS） area near the Fermi energy level for L1 is larger than that of Ls,indicating higher anionic and cationic redox reactivity than ***,L1 exhibits increased O-vacancy formation energy due to higher Li/Ni disordering of 4.76%（quantified by X-ray diffraction Rietveld refinement） and enhanced TM–O covalency,making lattice O release more difficult and thus improving electrochemical *** increased Li/Ni disordering also leads to more Ni2+presence in the Li layer,which acts as a pillar during Li+de-embedding,improving structural *** research not only presents a viable approach to designing low-Co LLOs with enhanced capacity and ICE but also contributes significantly to the fundamental understanding of structural regulation in high-performance LIB cathodes.

关键词： Ice