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Tetraolefin stereospecific photodimerization and photopolymerization in coordination polymers

Science China Chemistry 2022年第10期65卷 1867-1872页

作者： wei-jie gong Zhan-Yong Yang Yu-Xuan Hong Dong Liu Zheng Niu Pierre Braunstein Jian-Ping Lang College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal UniversityHuaian 223300China Universitéde Strasbourg-CNRS Institut de Chimie(UMR 7177 CNRS)4 rue Blaise Pascal-CS 90032Strasbourg 67081France

In the context of the highly desirable design and preparation of smart materials with adjustable properties based on photoreactive compounds,we report two unique photoreactive coordination polymers(CPs),{[Zn(4-Iba)_(2)(4-tkpvb)]·H_()2O}_(n)(1,4-HIba=4-iodobenzoic acid,4-tkpvb=1,2,4,5-tetrakis(4-pyridylvinyl)benzene)and[Cd(1,4-bdc)(4-tkpvb)]_(n)(2,1,4-H_(2)bdc=1,4-benzenedicarboxylic acid).Depending on the metal ions and auxiliary carboxylate ligands used,the 4-tkpvb ligands in 1 and 2 adopt different mutual arrangements,which facilitate the photodimerization and photopolymerization reactions in single crystal to single crystal(SCSC)*** UV light irradiation which results in the dimerization of the 4-tkpvb ligands,the one-dimensional(1D)zigzag chainsof 1 are transformed into a two-dimensional(2D)network of{[Zn(4-Iba)_(2)(bpbtpvcb)_(0.5)]·H_(2)O}_(n)(1a,bpbtpvcb=1,3-bis(4-pyridyl)-2,4-bis(2,4,5-tri(2-(4-pyridyl)vinyl)phenylcyclobutane).Similarly,in the crystals of 2,all 4-tkpvb ligands experience a photopolymerization reaction to form an unprecedented 1D linear organic polymer,poly-1,3-bis(4-pyridyl)-2,5-bis(2-(4-pyridyl)-vinyl)phenyl)cyclobutane(poly-bpbpvpcb).Furthermore,the 2D network of 2 is converted into a three-dimensional(3D)framework of[Cd_(n)(1,4-bdc)_(n)(poly-bpbpvpcb)](2a).This work not only offers a new protocol to selectively synthesize new supramolecular cyclic compounds,but also expands the application of photopolymerization to the synthesis of macromolecules.

关键词： coordination polymers single-crystal to single-crystal transformation photodimerization photopolymerization cycloaddition

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A Sensitive Fluorescent Sensor for 4-nitrophenol in Aqueous Solution Based on a Cobalt（Ⅱ） Complex

A Sensitive Fluorescent Sensor for 4-nitrophenol in Aqueous ...

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中国化学会第九届全国无机化学学术会议

作者： wei-jie gong Hong-Xi Li Jian-Ping Lang College of Chemistry Chemical Engineering and Materials ScienceSoochow University

Detection of nitroaromatic compounds is important for national homeland security,military applications,forensic investigations,and environmental *** detection methods rely on trained sniffer dogs or sophisticated *** approaches need very expensive instruments and they are not easily accessible in most *** coordination polymers（CPs）or metal organic frameworks（MOFs）have proved to be attractive candidates for the detection of trace amounts of nitroaromatics.[1,2]This is mainly because can be efficiently modulated by both analyte–metal and analyte–ligand interactions and displays fast,highly sensitive,and reversible nitro-explosives sensing compared with other methods.[3]In this paper,we selected1,3,5-tri（4-vinylpyridyl）-benzene（tvpb）as a ligand to react with Co（NO3）2·6H2O and 2,2’-biphenyldicarboxylic acid（2,2’-H2bpdc）,producing one three-dimensional polymer[Co（tvpb）（2,2’-H2bpdc）]n（1）.In 1,each Co is coordinated by three O atoms from two bpdc ligands and three N atoms from three tvpb ligands（Fig.1a）.The average Co–O and Co–N bond lengths are 2.172（3）Aand 2.157（3）*** Co center and each tvpb ligand can be viewed as a 5-connected node and a 3-connected node,***,the structure of 1 can be simplified into a 3D（3,5）-connected topology（Fig.1b）.A finely ground sample of 1（2 mg）was suspended in 2 m L of water,sonicated for 1 h and exhibited an emission at 412 nm when excited at 291 *** 1 is very stable in water.A dispersed suspension of 1 in H2O also displays strong fluorescence emission and exhibits good selectivity and sensitivity toward nitroaromatic（Fig.1c）.

关键词： Cobalt(Ⅱ) complex 4-nitrophenol flourescent sensor luminescent quenching

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太阳能热水地板采暖系统稳态换热过程的研究

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太阳能学报 1989年第4期10卷 342-350页

作者：郑维杰龚堡何梓年北京市太阳能研究所

本文以太阳能热水地板采暖系统为研究对象,对地板和房间做了综合换热分析,建立了系统的数学模型,并利用计算机进行数值求解。实验证明,本文建立的数学模型基本正确,提出的计算程序可以模拟此系统的换热过程,对不同情况下的系统设计和运... 详细信息

本文以太阳能热水地板采暖系统为研究对象,对地板和房间做了综合换热分析,建立了系统的数学模型,并利用计算机进行数值求解。实验证明,本文建立的数学模型基本正确,提出的计算程序可以模拟此系统的换热过程,对不同情况下的系统设计和运行具有指导意义。

关键词：太阳能热水地板采暖系统换热

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Impact of Individuals’ Fitness Expressions on Interactive Genetic Algorithms’ Performances

Impact of Individuals’ Fitness Expressions on Interactive G...

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2009中国控制与决策会议

作者： Dun-wei gong,jie Yuan School of Information and Electrical Engineering,China University of Mining and Technology,Xuzhou 221116,China

＜正＞Interactive genetic algorithms involve a user to evaluate an individual’s *** far,there have been many expressions of an individual’s fitness,but no mature result of their influences onlGAs’ performances has come *** review 5 representative fitness expressions in this paper,*** fitness,discrete fitness,interval fitness,fuzzy fitness,as well as the fitness not directly assigned by the *** a RGB color evolutionary system to collect data and based on many statistical methods,we analyze the impact of the above fitness expressions on interactive genetic algorithms’ performances in detail,and make a research on the user’s satisfaction *** achievements in this paper provide a foundation for choosing an appropriate fitness expression in real-world applications.

关键词： Genetic algorithm Interactive genetic algorithm Fitness Expression

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Role of iron ore in enhancing gasification of iron coke:Structural evolution,influence mechanism and kinetic analysis

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 58-69页

作者： jie Wang wei Wang Xuheng Chen Junfang Bao Qiuyue Hao Heng Zheng Runsheng Xu School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Institue of Ironmaking Technology Baosteel Central Research InstituteShanghai 201999China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The utilization of iron coke provides a green pathway for low-carbon *** uncover the influence mechanism of iron ore on the behavior and kinetics of iron coke gasification,the effect of iron ore on the microstructure of iron coke was ***,a comparative study of the gasification reactions between iron coke and coke was conducted through non-isothermal thermogravimetric *** findings indicate that compared to coke,iron coke exhibits an augmentation in micropores and specific surface area,and the micropores further extend and *** provides more adsorption sites for CO_(2) molecules during the gasification process,resulting in a reduction in the initial gasification temperature of iron *** the heating rate in non-isothermal gasification can enhance the reactivity of iron *** metallic iron reduced from iron ore is embedded in the carbon matrix,reducing the orderliness of the carbon structure,which is primarily responsible for the heightened reactivity of the carbon *** kinetic study indicates that the random pore model can effectively represent the gasification process of iron coke due to its rich pore ***,as the proportion of iron ore increases,the activation energy for the carbon gasification gradually decreases,from 246.2 kJ/mol for coke to 192.5 kJ/mol for iron coke 15wt%.

关键词： low-carbon ironmaking iron coke gasification structural evolution kinetic model

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Correlation analyse between thyroid hormone levels and severity of schizophrenia symptoms

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World Journal of Psychiatry 2025年第1期15卷 63-71页

作者： Qi-Hui Jiang wei-Dong gong Department of Endocrinology and Metabolism Hengyang Central HospitalHengyang 421000Hunan ProvinceChina Breast Tumor Surgical Outpatient Hengyang Central HospitalHengyang 421000Hunan ProvinceChina

BACKGROUND The imbalance of hormone levels in the body is closely related to the occurrence and progression of schizophrenia,especially thyroid *** To study the relationship between triiodothyronine(T3),thyroxine(T4),free T3(FT3),free T4(FT4),thyroid stimulating hormone(TSH)and *** In this study,100 schizophrenia patients were selected from our hospital between April 2022 and April *** clinical data were analyzed *** on the Positive and Negative Syndrome Scale(PANSS)score,patients were divided into mild(1-3 points,n=39),moderate(4 points,n=45),and severe groups(5-7 points,n=16).Additionally,55 healthy individuals served as a control *** blood samples were collected to measure T3,T4,FT3,FT4,TSH,and cortisol concentrations,analyzing their relationship with PANSS *** The serum levels of T3,FT3,FT4,TSH and cortisol in the schizophrenia group were lower than those in the control group(P<0.05).With the increase of the severity of the disease,the concentrations of T3 and T4 decreased,while the con-centrations of TSH and cortisol increased(P<0.05).The concentrations of TSH and cortisol were positively correlated with the PANSS score,while T3 and T4 were negatively correlated with the PANSS score(P<0.05).The receiver ope-rating characteristic curve results showed that T3,T4,TSH,and cortisol had good efficacy in the diagnosis of *** results showed that decreased T3 level,decreased T4 level,decreased TSH level and increased cortisol level may be independent risk factors for *** Thyroid hormone levels are associated with the severity of schizophrenia symptoms,which can provide new solutions for the diagnosis and treatment of schizophrenia.

关键词： Thyroid hormone Schizophrenia Symptom severity Positive and Negative Syndrome Scale score Cortisol

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A low redox potential and long life organic anode material for sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 557-564页

作者： Zhi Li Yang wei Kang Zhou Xin Huang Xing Zhou jie Xu Taoyi Kong Junwei Lucas Bao Xiaoli Dong Yonggang Wang Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New Energy Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Fudan University Department of Chemistry Boston College School of Materials Science and Engineering Anhui University of Technology

Sodium-ion batteries （SIBs） with organic electrodes are an emerging research direction due to the sustainability of organic materials based on elements like C,H,O,and sodium ***,organic electrode materials for SIBs are mainly used as cathodes because of their relatively high redox potentials（>1 V）.Organic electrodes with low redox potential that can be used as anode are ***,a novel organic anode material （tetrasodium 1,4,5,8-naphthalenetetracarboxylate,Na4TDC） has been developed with low redox potential （<0.7 V） and excellent cyclic *** three-sodium storage mechanism was demonstrated with various in-situ/ex-situ spectroscopy and theoretical calculations,showing a high capacity of 208 mAh/g and an average decay rate of merely 0.022%per ***,the Na4TDC-hard carbon composite can further acquire improved capacity and cycling stability for 1200 cycles even with a high mass loading of up to 20 mg *** pairing with a thick Na3V2（PO4）3cathode (20.6 mg cm-2),the as-fabricated full cell exhibited high operating voltage （2.8 V）,excellent rate performance and cycling stability with a high capacity retention of 88.7% after 200 cycles,well highlighting the Na4TDC anode material for SIBs.

关键词： Organic anode material Low redox potential Composite anode Sodium-ion batteries

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实验小鼠肾匀浆中肽酶-3能力验证结果评价

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中国药事 2018年第3期32卷 329-334页

作者：王洪魏杰王淑菁巩薇岳秉飞中国食品药品检定研究院北京100050

目的:通过实验小鼠肾匀浆中肽酶-3检测能力验证计划,了解实验动物检测机构检验能力,提高实验动物质量检测水平。方法:按照CNAS批准的能力验证方案,通过样品制备,经过稳定性和均匀性检验合格,作为能力验证样品。采用随机编号,发样给参加... 详细信息

目的:通过实验小鼠肾匀浆中肽酶-3检测能力验证计划,了解实验动物检测机构检验能力,提高实验动物质量检测水平。方法:按照CNAS批准的能力验证方案,通过样品制备,经过稳定性和均匀性检验合格,作为能力验证样品。采用随机编号,发样给参加单位,并附作业指导书。在规定时限提交检验报告和原始记录复印件,其结果与样品标准结果一致的判为满意结果,不一致或未能提交结果的判为不满意结果。结果:共有11个实验室参加本次能力验证项目,其中提交满意结果的实验室有9个,占总参加机构的81.8%,不满意的实验室有2个,占18.2%。结论:实验动物质量检测机构在实验小鼠肾匀浆中肽酶-3的检测能力较高,实施能力验证计划能够反映实验室的检测水平。

关键词：能力验证实验动物肽酶-3

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清热化瘀法治疗多囊肾发热浅析

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山东中医杂志 2011年第6期30卷 372-374页

作者：郑炜贞龚婕宁南京中医药大学江苏南京210029

认为多囊肾在合并感染或出血情况下的高热不退,其病机特点是邪热与瘀血相结合,可采用温病清热化瘀法进行治疗。运用该法的关键是以准确辨证为前提,并根据病程之久暂、血瘀之轻重灵活变化,施治得法,则可收明显疗效。

关键词：多囊肾发热病因病机清热化瘀法

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Recent advances in electrocatalysts for non-aqueous Li-O2 batteries

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Chinese Chemical Letters 2017年第4期28卷 709-718页

作者： wei Chen Ya-Feng gong jie-Hua Liu Future Energy Laboratory School of Materials Science and Engineering Hefei University of Technology Hefei 230009 China

As one of the next-generation energy-storage devices,Li-O_2 battery has become the main research direction for the academic researchers due to its characteristics of environmental friendship,relatively simple structures,high energy density of 3500Wh/kg and low ***,Li-O_2 battery cannot be commercialized on a large scale because of the challenging issues including high-efficient electrocatalysts,membranes,Li-based anode and so *** this review,we focused on the recent development of electrocatalyst materials as cathodes for the non-aqueous Li-O_2 batteries which are relatively simpler than other Li-O_2 batteries＇ *** were summarized including noble metals,nanocarbon materials,transition metals and their *** points out that the challenges of preparation high-efficient catalysts not only require high catalytic activity and conductivity,but also have novel nanoarchitectures with large interface and porous volume for LiO_x ***,the further investigation of reaction mechanism and advanced in situ analysis technologies are welcome in the coming work.

关键词： Electric vehicle Li-O2 battery High capacity Catalysts Electrocatalysis

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