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Hydrothermal Synthesis and Crystal Structure of a Hybrid Compound Based on β-Octamolybdate [Mn(2,2’-bipy)_3]_2[β-Mo_8O_(26)]·4H_2O

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Chinese Journal of Structural Chemistry 2005年第10期24卷 1164-1168页

作者： SHEN yue yu li niu jing-yang wang jing-ping School of Chemistry and Chemical Engineering Henan University Kaifeng 475001 China

A hybrid compound [Mn（2,2＇-bipy）3]2[β-Mo8O26]·4H2O prepared by the hydrothermal method consists of a [β-Mo8O26]^4- isopolyanion, two isolated manganese-bipyridyl units [Mn（2,2＇-bipy）3]^2＋ and four crystal water molecules. Each [Mn（2,2＇-bipy）3]^2＋ is defined by six nitrogen atoms from three 2,2＇-bipyridine molecules forming a distorted MnN6 octahedron. Crystallographic data for the title compound： monoclinic, space group P21/c, a = 12.156（2）, b = 13.738（3）, c = 21.949（4） A,β = 90.44（3）°, V = 3665.3（13） A^3, Mr = 2302.57, Z = 2, Dc = 2.086 g/cm^3, F（000） = 2252, T= 293（2） K,μ（Mo-Kα） = 1.745 mm^-1, R = 0.0436, wR = 0.1056, and GOF = 1.074 for 550 parameters and 5515 observed reflections with I 〉 2σ（I）.

关键词： hydrothermal synthesis isopolyanion crystal structure octamolybdate

Synthesis and Structural Characterization of Manganese Carbonyl Incorporated Polyoxomolybdate (n-Bu_4N)_2[Mo_6O_(16)(OCH_3)_2{HOCH_2C(CH_2O)_3}_2{Mn(CO)_3}_2]

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Chemical Research in Chinese Universities 2008年第6期24卷 675-678页

作者： wang jing-ping li Ji-li niu jing-yang Institute of Molecular and Crystal Engineering School of Chemistry and Chemical Engineering Henan University Kaifeng 475001 P R. China

The polyoxoanion incorporated {Mn（CO）3^＋} complex, （n-Bu4N）2[Mo6O16（OCH3）2{HOCH2C（CH2O）3}2·{Mn（CO）3}2]（1）, has been synthesized by the reaction of （n-Bu4N）4[Mo8O26] with Mn（CO）5Br in methanol, in the presence of C（CH2OH）4. The complex 1 has been characterized by IR, UV-Vis, X-ray single crystal diffraction, and TG. Crystal data for the complex 1：C25H48MnMo3NO16 （1）, Triclinic Pi, a=0.9405（3） nm, b=1.3351（4） nm, c=1.5455（4） nm, α=103.206（5）°, β=102.165（5）°, γ=100.784（5）°, V=1.7896（9） nm^3, Z=2, R1=0.0703, wR2= 0.1495. The structure analysis of complex 1 shows that the complex consists of two tetrabutylammonium cations and a polyoxomolybdate anion that incorporates two fac-Mn（CO）3^＋ units. The anion of complex 1 can be considered as the dimer of two rhomb-like anions by sharing of two comers.

关键词： Polyoxomolybdate Manganese Carbonyl

Hybrid Tungstocuprate [Cu(2,2′-bpy)_3]_2H_4[CuW_(12)O_(40)]·6H_2O Based on Keggin Polyoxoanion [CuW_(12)O_(40)]^(6-) with Cu~Ⅱas Heteroatom

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Chemical Research in Chinese Universities 2007年第3期23卷 263-267页

作者： wang jing-ping MA Peng-tao li Jie niu jing-yang Institute of Molecular and Crystal Engineering School of Chemistry and Chemical Engineering Henan University Kaifeng 475001 P. R. China

A novel hybrid tungstocuprate （ Ⅱ ） [ Cu （2,2＇-bpy） 3 ] 2 H4 [ CuW12O40 ] · 6H2O （ 2,2＇-bpy = 2,2＇-bipyfidine） was synthesized via hydrothermal method and characterized using elemental analyses, IR, UV, XPS, TG-DSC, EPR, and X-ray single crystal diffraction. The structural analysis shows that the complex consists of an unusual Keggin-type polyoxoanion [ CuW12O40 ]^6- and a pair of chiral complex cations [ Cu（2,2＇-bpy） 3 ]^＋ together with four protons and six crystallization water molecules, and the Keggin polyoxoanion is connected with [ Cu （2,2＇-bpy）3 ]^＋v/a multiple C-H…O hydrogen bonds resulting in a dimer.

关键词： Hydrothermal synthesis Polyoxometalates Keggin Tungstocuprate

Synthesis, Character and Crystal Structure of the Complex {Er(DMSO)_7}PW_(12)O_(40)

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Chinese Journal of Structural Chemistry 2007年第8期26卷 949-954页

作者： HAN Qiu-Xi ZHANG Da-li MA Jian-Ru wang jing-ping niu jing-yang Institute of Molecular and Crystal Engineering Basic Experiment Teaching Center Henan University Kaifeng 475001 China School of Environment and.Planning Henan University Kaifeng 475001 China School of Chemistry and Chemical Engineering Henan University Kaifeng 475001 China

The synthesis, X-ray crystal structure, thermal properties and electrochemistry of the new complex formulated as {Er（DMSO）7}PW12O40 are reported. The single-crystal X-ray analysis reveals that the crystal crystallizes in the monoclinic system, space group P21/c with a=11.767（2）, b=14.909（3）, c=34.905（7）A, β=98.97（3）°, Mr=3591.33, V=6049（2）A^3, Dc=3.944g/cm^3, Z=4, GOOF=1.098, F（000）=6340, R=0.0490 and wR=0.1202. Crystal structure analysis indicates that the Er（Ⅲ） is seven-coordinate with a distorted pentagonal bipyramid and combines to the anion [PW12O40]3- via static electric force.

关键词： heteropolyanion erbium complex crystal structure

Effective fraction from Simiao Wan prevents hepatic insulin resistant by inhibition of lipolysis via AMPK activation

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Chinese Journal of Natural Medicines 2022年第3期20卷 161-176页

作者： jiang Qi-Xin CHEN Yi-Meng MA jing-Jie wang yu-ping li ping WEN Xiao-Dong yang Jie State Key Laboratory of Natural Medicines China Pharmaceutical UniversityNanjing 210009China

Simiao Wan(SMW)is a traditional Chinese formula,including Atractylodis Rhizoma,Achyranthis Bidentatae Radix,Phellodendri Chinensis Cortex and Coicis Semen at the ratio of 1:1:2:*** can be used to the treatment of ***,its bioactive compounds and underlying mechanism are *** study was designed to screen the antilipolytic fraction from SMW and investigate its therapeutic mechanisms on hepatic insulin *** fractions of SMW were prepared by membrane separation combined with macroporous resin and their antilipolytic activity was screened in fasted *** effects of 60%ethanol elution(ESMW)on lipolysis were investigated in 3T3-L1 adipocytes stimulated by palmitic acid(PA)and high fat diet(HFD)-fed *** our study,ESMW was the bioactive fraction responsible for the antilipolytic activity of SMW and 13 compounds were characterized from ESMW by UHPLC-QTOF-MS/*** suppressed protein kinase A(PKA)-hormone-sensitive lipase(HSL)related lipolysis and increased AMP-activated protein kinase(AMPK)phosphorylation in PA challenged 3T3-L1 *** knockdown abolished the inhibitory effects of ESMW on IL-6 and HSL pSer-660,revealing that the antilipolytic and anti-inflammatory activities of ESMW are AMPK ***,ESMW ameliorated insulin resistance and suppressed lipolysis in HFD-fed *** inhibited diacylglycerol accumulation in the liver and inhibited hepatic *** medium collected from ESMW-treated 3T3-L1 cells ameliorated insulin action on hepatic gluconeogenesis in liver cells,demonstrating that the antilipolytic activity contributed to ESMW beneficial effects on hepatic glucose *** conclusion,ESMW,as the antilipolytic fraction of SMW,inhibited PKA-HSL related lipolysis by activating AMPK,inhibiting diacylglycerol(DAG)accumulation in the liver and thereby improving insulin resistance and hepatic gluconeogenesis.

关键词： Simiao Wan Insulin resistance lipolysis AMPK

Mechanisms of Chinese Medicine in Gastroesophageal Reflux Disease Treatment: Data Mining and Systematic Pharmacology Study

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Chinese Journal of Integrative Medicine 2023年第9期29卷 838-846页

作者： CHEN Hao-yu li Qi ZHOU ping-ping yang Tian-xiao liu Shao-wei ZHANG Teng-fei CUI Zhen Lyu jing-jing wang Yan-gang Graduate School Hebei University of Chinese MedicineShijiazhuang050091China Department of Gastroenterology Hebei Province Hospital of Chinese MedicineShijiazhuang050091China Department of Gastroenterology Beijing University of Chinese Medicine Third Affiliated HospitalBeijing100029China

Objective To identify specific Chinese medicines(CMs)that may benefit patients with gastroesophageal reflux disease(GERD),and explore the action *** Domestic and foreign literature on the treatment of GERD with CMs was searched and selected from China National Knowledge Infrastructure,China Science and Technology Journal Database,Wanfang Database,and PubMed from October 1,2011 to October 1,*** from all eligible articles were extracted to establish the database of CMs for *** algorithm of data mining techniques was used to analyze the rules of herbs selection and core Chinese medicine formulas were identified.A system pharmacology approach was used to explore the action mechanism of these *** A total of 278 prescriptions for GERD were analyzed,including 192 *** of Apriori algorithm indicated that Evodiae Fructus and Coptidis Rhizoma were the highest confidence combination.A total of 32 active ingredients and 66 targets were screened for the treatment of *** analysis showed that the mechanisms of action mainly involved pathways in cancer,fluid shear stress and atherosclerosis,advanced glycation end product(AGE),the receptor for AGE signaling pathway in diabetic complications,bladder cancer,and rheumatoid *** Evodiae Fructus and Coptidis Rhizoma are the core drugs in the treatment of GERD and the potential mechanism of action of these medicines includes potential target and pathways.

关键词： gastroesophageal reflux disease Chinese medicine systematic pharmacology data mining

Impact of Absolute Humidity and Temperature on Eczema

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Biomedical and Environmental Sciences 2021年第1期34卷 61-65页

作者： MA yue ling li Sheng liu jiang Tao HE Xiao Tao li Lan yu niu jing ping LUO Bin ZHANG Kai Institute of Occupational Health and Environmentai Health School of Public HealthLanzhou UniversityLanzhou 730000GansuChina The First People's Hospital of Lanzhou city Lanzhou 730000GansuChina Shanghai Typhoon Institute China Meteorological Administratior\Shanghai 200030China Shanghai Key Laboratory of Meteorology and Health Shanghai Meteorological BureauShanghai 200030China Department of Epidemiology Human Genetics and Environmentai SciencesSchool of Public HealthThe University of Texas Health Science Center at HoustonHoustonTX 77030USA Southwest Center for Occupational and Environmental Health School of Public HealthThe University of Texas Health Science Center at HoustonHoustonTX 77030USA

Eczema is a common dermatological disease with a prevalence of 15%–30%among children and up to 10%among adults,causing great disease burden worldwide[1].Meteorological factors play important roles in the development of *** instance,a *** study in children indicated that the odds of poorly controlled eczema increased by 15%for every 5°F increase in temperature and that the odds of poorly controlled eczema increased by 10%for every 10%increase in relative humidity(RH)[2].

关键词： instance Impact prevalence

NUMERICAL STUDY OF THE PITCHING MOTIONS OF SUPERCAVITA-TING VEHICLES

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Journal of Hydrodynamics 2012年第6期24卷 951-958页

作者： yu Kai-ping ZHANG Guang ZHOU jing-jun ZOU wang li Zhen-wang School of Aeronautics Harbin Institute of Technology

The pitching motions of supercavitating vehicles could not be avoided due to the lost water buoyancy. In order to have some insight for the design of the supercavitating vehicles, the fixed frequency and free pitching motions are investigated. A numerical predicting method based on the relative motion principle and the non-inertia coordinate system is proposed to simulate the free pitching motions of supercavitating vehicles in the longitudinal plane. Homogeneous and two fluid multiphase models are used to predict the natural and the ventilated supercavitating flows. In the fixed frequency pitching motions, a variety of working conditions are considered, including the pitching angular velocities and the supercavity scales and the results are found to be consistent with the available experimental results in literature. The mesh deformation technology controlled by the moment of momentum equation is adopted to study the free pitching motions and finally to obtain the planing states proposed by Savchenko. The numerical method is validated for predicting the pitching motions of supercavitating vehicles and is found to enjoy better calculation efficiency as comparing with the mesh regeneration technology.

关键词： supercavitating flow two fluid multiphase flow model homogeneous model pitching motion mesh deformation

Dynamic Bonds Mediate π-π Interaction via Phase Locking Effect for Enhanced Heat Resistant Thermoplastic Polyurethane

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Chinese Journal of Polymer Science 2021年第2期39卷 154-163,I0005页

作者： yue Lai Xiao Kuang Wen-Hong yang yu wang ping Zhu jing-Pu li Xia Dong Du-Jin wang CAS Key Laboratory of Engineering Plastics CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China The George W.Woodruff School of Mechanical Engineering Georgia Institute of TechnologyAtlantaGeorgia 30332United States College of Materials Science and Engineering Shenzhen UniversityShenzhen 518060China

Stimulus-responsive polymers containing dynamic bonds enable fascinating properties of self-healing,recycling and reprocessing due to enhanced relaxation of polymer chain/network with labile ***,we study the structure and properties of a new type of thermoplastic polyurethanes(TPUs)with trapped dynamic covalent bonds in the hard-phase domain and report the frustrated relaxation of TPUs containing weak dynamic bond andπ-πinteraction in hard *** detected by rheometry,the aromatic TPUs with alkyl disulfide in the hard segments possess the maximum network relaxation time in contrast to those without dynamic bonds and alicyclic *** situ FTIR and small-angle scattering results reveal that the alkyl disulfide facilitates stronger intermolecular interaction and more stable micro-phase morphology inπ-πinteraction based aromatic *** dynamics simulation for pure hard segments of model molecules verify that the presence of disulfide bonds leads to strongerπ-πstacking of aromatic rings due to both enhanced assembling thermodynamics and *** enhancedπ-πpacking and micro-phase structure in TPUs further kinetically immobilize the dynamic *** kinetically interlocking between the weak dynamic bonds and strong molecular interaction in hard segments leads to much slower network relaxation of *** work provides a new insight in tuning the network relaxation and heat resistance as well as molecular self-assembly in stimulus-responsive dynamic polymers by both molecular design and micro-phase control toward the functional applications of advanced materials.

关键词： Thermoplastic polyurethane Disulfide bond Stimuli-responsive rearrangement π-πStacking Phase locked effect