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SYNTHESIS AND MAGNETIC PROPERTY OF CARBOXYL BRIDGING DICOPPER(Ⅱ) COMPLEXES

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Chinese Chemical Letters 1992年第10期3卷 807-808页

作者： Zhen Feng xi rui Na yang Dou Nan JIN Henan Institute of Chemistry, Zhengzhou 450003

Two new dicopper(Ⅱ) complexes with two carboxyl bridgings in one molecule[Cu(dm-phen)(HCOO)]_2(NO_3)_2 3H_2O(1). [Cu(ds-phen)(CH_3COO)]_2 (NO_3)_2 3H_2O(2). one dicopper(Ⅱ) complex with one carboxyl bridging and one hydroxo bridging in one molecule [Cu_2(OH)(C_2H_5COO)(ds-phen)_2]. (NO_3)_2 H_2O(3) and one cononuclear Cu(Ⅱ) complex [Cu(de-phen)(CF_3COO)](NO_3).H_2O(4)(dm-phen= 2,9-dimethyl-1,10-phenanthrolin)were prepared and characterized. The effective magnetic moment, u elf, was measured and their magnetic properties were discussed. The coordination modes of carboxyl moieties in all the title complexes were proposed.

关键词： Cu SYNTHESIS AND MAGNETIC PROPERTY OF CARBOXYL BRIDGING DICOPPER COMPLEXES

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STUDY ON BINUCLEAR COPPER(I)COMPLEXES ***,CHARACTERIZATION AND ELECTROCHEMISTRY OF DICHLORO-TRIS(4-VINYLPYRIDINE)-DICOPPER(I)COMPLEX

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Chinese Chemical Letters 1990年第2期1卷 185-186页

作者： Zhen Feng xi rui Na yang Dou Man JIN Henan Institute of Chemistry,Zhengzhou 450003

Recent years,many novel complexes have been prepared by using hetero-bidentate ***,complexes with such ligands as 4-vinylpyridine which has two different coordinating sites have not been reported,and only a few complexes of Cu(I)have been published^(1-3).The title complex Cu_2(C_5H_4N·CH=CH_2)_3Cl was prepared and characterized by elemental analyses,ICP,IR,and electronic *** conductivity,oxidation potential and reduction potential were measured.

关键词： I)COMPLEXES III.SYNTHESIS,CHARACTERIZATION AND ELECTROCHEMISTRY OF DICHLORO-TRIS STUDY ON BINUCLEAR COPPER I)COMPLEX DICOPPER VINYLPYRIDINE Cu CI III

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Asymmetric interfacial engineering regulated charge distribution on Ru/Ni-N-C sites for efficient hydrogen evolution reaction in alkaline and seawater electrolytes

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Science China Chemistry 2025年

作者： rui Yu xi Cao Chengyang Zhu Qingqing Chen Ziyi Yan Binbin Jiang Junjie Mao xianwen Wei Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes College of Chemistry and Materials ScienceAnhui Normal University Anhui Provincial Key Laboratory of Advanced Catalysis and Energy Materials School of Chemistry and Chemical Engineering Anqing Normal University School of Chemistry and Chemical Engineering Anhui University of Technology

Developing highly efficient and cost-effective electrocatalysts for hydrogen evolution reaction（HER） is grandly challenging in alkaline and alkaline seawater electrolytes. Herein, the asymmetric interfacial active sites with Ru nanoparticles and Ni single atoms in Ru/Ni-N-C were designed through a solvothermal-pyrolysis process. Constructing highly asymmetric interfacial active sites with a strong electron delocalization effect significantly improves HER kinetics. As expected, Ru/Ni-N-C requires low overpotentials with around 20 mV at 10 mA cm-2and robust durability over 48 h in alkaline and alkaline seawater *** at 200 mA cm-2, the overpotentials are close to 100 mV in both above electrolytes for Ru/Ni-N-C. Density function theory calculation results suggest that the asymmetric interface between Ru nanoparticle and Ni-N-C could accelerate the dissociation of water molecules and modulate the hydrogen species, consequently improving the HER performances. This work opens a unique approach for constructing advanced materials for energy conversion.

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Study on City Area Traffic Coordination Control Based on Linear Programming

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Study on City Area Traffic Coordination Control Based on Lin...

Modular assembly of complex C-alkyl glycoside enabled via cooperative NHC and photoredox catalysis

2009中国控制与决策会议

作者： xi-rui yang~(1,2) Dian-hai Wang~1 1.College of Transportation,Jilin University,Changchun,China,130022 2.Automobile Management Institute,Bengbu,P.R.China,233011

＜正＞A traffic network of a city area is considered in this *** paper presents a linear program which is based on optimization from a purely mathematical point of view to solve the problem of optimizing city area traffic *** phase sequence of each intersection is *** identification of the optimal phase relationship between all intersections and duration for the signal phases are combined into one problem in this *** particular,we consider a group of signalized intersections in a city area which have common *** analyse the network coordination problem and given splits for each phase,determine offsets for all signals.

关键词： Traffic Coordination Control linear Programming Arterial Bandwidth

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Science China Chemistry 2025年

作者： rui-Qiang Jiao Ming Li xi Chen Mei-Ze Xu Tian Ding xiao-Ping Gong Zhuo-Mei Li Xue-Yuan Liu Yong-Min Liang State Key Laboratory of Applied Organic Chemistry Lanzhou University College of Chemistry and Chemical Engineering Northwest Normal University

C-Alkyl glycosides are found in natural products and are indispensable in drug development programs,owing to their diverse range of medicinal ***-component reactions involving glycosyl radical addition are well documented and proved efficient for the C-alkyl glycosides ***,multicomponent reactions for the rapid and controllable construction of structurally diversified C-alkyl glycosides in a single step remains a significant challenge due to the issues associated with balancing reactivity,compatibility,and ***,we report an NHC and photoredox co-catalyzed three-component method to access complex and valuable C-alkyl *** protocol exhibits broad substrate scope and excellent chemoand ***,nine types of sugars are compatible with this *** addition,the generality of this catalytic strategy was further highlighted by the potential for scalable production,the feasibility of further modifications of the products and its successful application in the late-stage functionalization of pharmaceutical skeletons.

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Inhibitory effect of M3 receptor antagonist 4-DAMP on melanoma proliferation of A375 cell line

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Journal of Hainan Medical University 2020年第4期26卷 1-8页

作者： Hao-Bin Jin Zi-xiang Wei Jia-Qi Yu Qiang Gao xi-rui yang Li-Juan Wang Yue-Ping Guo Yan Liu Department of Pharmacology(State-Province Key Laboratories of Biomedicine and Pharmaceutics) Harbin Medical University150081 HarbinHeilongjiang Province Shandong Provincial Third Hospital 250000 JinanShandong The First Clinical College Hainan Medical College571199 HaikouHainan Department of Anesthesiology The First Affiliated Hospital of Hainan Medical College570102 HaikouHainan Hainan Medical College 571199 HaikouHainan

Objective: he effect of M3 receptor antagonist 4-DAMP (4-diphenylacetoxy-N-methylpiperidine-methiodide) on the proliferation of melanoma were explored, and the development prospect and significance of M3 receptor antagonist in the field of anti-tumor were discussed. Methods: The viability of tumor cells was detected by MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide) colorimetry. The optimal concentration of 4-DAMP was screened and the effect of the drug was confirmed by EdU (5-ethynyl-2'-deoxyuridine) fluorescence staining. Adult male BALB/c nude mice were divided into control group, 5-Fu (5-Fluorouracil, 5-Fluorouracil, 20 mg/kg/d) group and 4-DAMP (2 mg/kg/d) group to establishtumor-bearing model in vivo. The tumor volume curve was calculated and plotted. Mice were killed after 21 days of continuous administration. Strip the tumor, take pictures and meatured the weighs, and calculate the inhibition rate. [1]The spleen was weighed and the spleen index was culculated. H & E staining was used to observe the pathological changes of tumor sections. The gene expression of M3R、MIA (Melanoma inhibitory activity, MIA)、SP-1 (Transcription factor Sp1, SP-1) and Lnc-SPRY4-IT1 (SPRY4 Intronic Transcript 1,Lnc-SPRY4-IT1) in A375 cell line was detected by real-time quantitative PCR (quantitative reverse-transcription polymerase chain reaction, qRT-PCR). The protein level of ERK1/2 (extracellular signal-regulated kinase 1/2,ERK1/2) was detected by Western Blot. Results: 4-DAMP could significantly inhibit the activity of A375 cell line (P < 0.01), and EdU staining demonstrated that 4-DAMP inhibited the growth of A375 cell line. The results of animal experiments showed that compared with the control group, the volume and mass of tumor in 5-Fu group and 4-DAMP group were significantly reduced (P < 0.05) and H & E staining showed that the intercellular space became larger, connective tissue increased, and tumor growth was obstructed. Compared with the control

关键词： A375 cells Melanoma 4-DAMP Proliferation

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Study of Route Choice Model Based on Different Choice Rules

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Study of Route Choice Model Based on Different Choice Rules

Synthesis, Photophysical, Electrochemical, ICT and ECL Studies of D-π-A Systems Containing Multifunctional Thiophene Chromophore

2009中国控制与决策会议

作者： xi-rui yang~1 Huai-ming Jing~1 Da-yi Qu~2 1.Automobile Management Institute,Bengbu,P.R.China,233011 2.School of Automobile and Transportation,Qingdao Technological University,Qingdao 266033,China

＜正＞Random utility route choice models play a central role in stochastic assignment to road *** usually adopted specifications for such models are Multinomial Logit（MML） and Probit,both having pros and *** this paper a modified specification of the Logit model,named M-Logit,is *** M-Logit overcomes the main shortcoming of MNL,*** choice probabilities for paths sharing a number of links,while keeping a closed analytical structure allowing calibration on disaggregate data and efficient path flow computations when paths are explicitly enumerated.A behavioural interpretation of the M-Logit model is proposed by presenting it as a particular case of a wider class of implicit joint models of route perception-choice.

关键词： utility route choice commonality factor rule

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Synthesis, Photophysical, Electrochemical, ICT and ECL Studi...

铀材料中杂质钍的230Th/232Th比值指纹分析研究

中国化学会第四届有机化学学术会议

作者： JING xiao CHEN, rui-Kui yang, xi-Chuan ZHAO, Chang-Zhi SUN, Li-Cheng (State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012) (Qingdao University of Science and Technology, Qingdao 266042) (Royal Institute of Technology, Stockholm, 10040, Sweden)

＜正＞A series of D-π-A systems with thiophene chromophore containing N.N-dimethylamino group or 1,2,2,4-tetramethyltetrahydroquinoline group as donors and cyanophosphonated, cyanocarboxylic or cyanophosphonic as acceptors have been synthesized and characterized by 1H NMR and MS spectra. Electronic absorption spectra show the expected bathochromic shift of λmax, with the increase of electron-withdrawing ability of the acceptors. All these compounds show a broad absorption band due to the delocalization of π-electron through the thienyl group in

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分析化学 2022年第2期50卷 310-316页

作者：徐江汪伟席瑞阳粟永阳王文亮李志明翟利华方随张海涛凡金龙王玉凤西北核技术研究所

研究了铀材料中杂质钍的Th/Th比值的核取证学属性,采用基于磷酸三丁酯(TBP)的铀钍分离流程制备低本底钍纯化液,通过铀外标校正钍的分馏效应,采用多接收电感耦合等离子体质谱(MC-ICP-MS)测定Th/Th比值。结果表明,Th/Th比值是具有时效性... 详细信息

研究了铀材料中杂质钍的Th/Th比值的核取证学属性,采用基于磷酸三丁酯(TBP)的铀钍分离流程制备低本底钍纯化液,通过铀外标校正钍的分馏效应,采用多接收电感耦合等离子体质谱(MC-ICP-MS)测定Th/Th比值。结果表明,Th/Th比值是具有时效性的铀材料特征指纹信息,流程本底引入的Th浓度小于5.5×10g/g,二氧化铀芯块、黄饼YC1、平行样黄饼YC2和黄饼YC3中的Th/Th比值分别为0.479±0.037、 1.376×10±4.8×10、 2.8582×10±2.2×10和2.8605×10±2.1×10(k=2),不确定度的主要来源是流程本底、待测样品中钍浓度,以及弱信号测量的不确定度。本方法结果准确,精密度较高,可鉴别Th/Th比值存在一定差异的铀材料,为核取证提供技术支持。

关键词：铀材料指纹特征 230Th/232Th比值多接收电感耦合等离子体质谱