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MOLECULAR STRUCTURE OF DINUCLEAR COBALT COMPLEX WITH CHELATING 1, 3.BIS (DIPHENYLPHOSPHINO ) PROPANE LIGAND

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chinese Journal of Structural Chemistry 1993年第5期 405-408页

作者： Lu Shi-Jie Yang Fan Fu Hong-XiangOSSO Laboratory, lanzhou institute of chemical physics, chinese academy of sciences, {2., {3. CHINAShi Jian-QiuFujian institute of Research on the Structure of Matter, chinese academy of sciences, Fuzhou, 3.0002.CHINA

Co2.( CO ) 6 (dppp ) Cdppp = 1,3.bis ( diphenylphosphino ) propane = Ph2.(CH2.3.Ph2., Mr=698. 3., monoclinic, space group P2./c, a=14. 952.8) , b = 13.44(2., c = 16. 72.1) A. β=110.56(4)°, V=3.47(9) A3. Z = 4, A=1. 47 g/cm3. λ(MoXα) = 0. 71069 A, F(000) = 142., λ(MoKα) = 11. 93.cm-1, R = 0. 03.0}and Rw = 0. 044 for 4553.observed independent reflections with I>4. 0σ(I). The molecular structure of the complex shows that the dppp ligand chelates one of the two cobalt atoms of the complex molecule, and there are two bridging carbonyl groups between the two cobalt atoms. The Co-Co bond length is 2. 53.(3. A . The chelating dppp ligand results in the asymmetrization of the molecule.

关键词： Crystal structure Dinuclear complex Cobalt-carbonyl-dppp complex

CATALYTIC　ACTIVITY　AND　OF　SUPPORTED　W_2.　HYDRODENITROGENATION　CATALYST

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chinese chemical Letters 1995年第9期6卷 819-822页

作者： Lei SHI Xin Ping WANG , Qin XIN(state key Laboratory of Catalysis,Dalian {2. of {3. {3.,chinese academy of edeners,Dalian,11602.) chinese Acad Sci Dalian Inst Chem Phys State Key Lab Catalysis Dalian 116023 Peoples R China

Abstract: Tungsten nitride supported over activated carbon has been used as the catalyst for pyridine hydrodeitrogenation (HDN) for the first time. It has ho found that W2./C has high catalytic activity and selectivi...

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Large-Scale Synthesis and Field Emission Properties of Single Crystal TiO2.Nanorods

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Large-Scale Synthesis and Field Emission Properties of Singl...

Low-heating solid state synthetic reactions of cyclopeantadienyl organolanthanide complexes

中国真空学会2.12.术年会

作者： Chen Jianbiao 1,Wang Chengwei 1,2.Li Dongsheng 1,Zhu Weidong 1,Zhou Feng 2.1.key Laboratory of Atomic and Molecular {3.&Functional Materials of Gansu Province,College of {3. and Electronic Engineering,Northwest Normal University,lanzhou 73.070,China 2.{3. key Laboratory of solid lubrication,lanzhou institute of {13. {3.,{12. academy of Science,lanzhou 73.000,China)

A facile growth procedure by low-pressure chemical vapor deposition(LCVD)has been developed to obtain single crystal TiO2.nanorods on Ni-coated Ti *** morphology of samples is critically depended on the growth *** a range of growth temperature of 700～800°C,single crystal TiO2.nanorods are obtained in *** nanorods are high purity rutile with a preferential orientation[110].On a critical temperature 850°C,the nanorods can not gain;the nanocrystal grain film is formed *** the samples as the field emitters directly,the field emission(FE)of both TiO2.nanorods and grain film were investigated at room *** the growth temperature increases from 700°C to 750,and 800°C,the turn-on field of the nanorods decreases from 3.96 V/μm to 2.98,and 2.16 V/μm,*** TiO2.grain film shows a higher turn on field of 7.46 V/μ*** nanorod films show good FE stability during 480 *** well FE properties of emitters may be related to numerous advantages of TiO2.nanorods,such as high aspect ratios,low work function(4.5 eV),well chemical stability and good contact with Ti *** addition,the temperature dependence of FE from the nanorod synthesized at 750°C has been *** environmental temperature of emission tests increases from room temperature(17°C)to 2.7°C,the turn-on field of the nanorods decreases from 2.16 to 1.76 V/μm,whereas the current density *** is clear that the FE properties of TiO2.nanorods are critically affected by environmental *** behaviors may be attributed to the reduction of effective work function of emission site with a moderate increase of environmental temperature.

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来源： cnki会议评论

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chinese Science Bulletin 2003年第19期48卷 2041-2043页

作者： ZHU Ming1, LI Yanrong1, LUO Jun1 & ZHOU Xigeng1,2.1. Department of Chemistry, Fudan University, Shanghai 2.043., China 2. {3. key Laboratory of Organometallic Chemistry, Shanghai {2. of Organic Chemistry, chinese academy of sciences, Shanghai 2.003.0} China Department of Chemistry Fudan University China state key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai China

A novel and simple one-step, solid state reaction of multicomponent systems has been developed to synthesize cyclopentadienyl-containing organolanthanide complexes, in which the effects of the coordinated solvent molecules and the nature of the reactants were also studied. We also studied the solid state decomposition reaction of Cp2.bPz(HPz), and the formation of [CpYb(Pz)2.2.may indicate that the constrained environment in solid state can lead to a novel chemical transformation, with product selectivity possibly different from that in the liquid phase.

关键词：低热固态反应合成茂基有机镧系络合物绿色化学环戊二烯 [CpYb(Pz)2.2 Cp2.bPz(HPz) 镱配合物

Two Quinones from the Aerial Parts of Sphallerocarpus gracillis

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chinese chemical Letters 1999年第11期10卷 919-920页

作者： Neng Yu CHEN Jun SHI Tao CHEN(institute of Organic Chemistry, state {2. Laboratory of Applied Organic Chemistry,{3. University,{3.) lanzhou Univ Inst Organ Chem State Key Lab Appl Organ Chem Lanzhou 730000 Peoples R China

Two new quinones were isolated from the aerial parts of Sphallerocarpus gracillis. Their structure were determined by spectroscopic methods (HRMS.2. NMR) and finally confirmed by X-ray crystallography.

关键词： quinones Sphallerocarpus gracillis

A particle-based method for granular flow simulation

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Science China(Information sciences) 2012年第5期55卷 1062-1072页

作者： CHANG YuanZhang 1,BAO Kai 2.3.ZHU Jian 1 & WU EnHua 1,2.1 Department of Computer and Information Science,University of Macau,Macao,China 2.{3. key Laboratory of Computer Science,{2. of Software,chinese {3. of sciences,Beijing 100190,China 3.Division of Mathematical and Computer sciences & Engineering,KAUST,Thuwal,Saudi Arabia 1. Department of Computer and Information Science University of Macau Macao China2. State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing 100190 China3. Division of Mathematical and Computer Sciences & Engineering KAUST Thuwal Saudi Arabia

We present a new particle-based method for granular flow *** the method,a new elastic stress term,which is derived from a modified form of the Hooke's law,is included in the momentum governing equation to handle the friction of granular *** force is also added to simulate the dynamic friction for the purpose of smoothing the velocity field and further maintaining the simulation *** from the Lagrangian nature of the SPH method,large flow deformation can be well handled easily and *** addition,a signed distance field is also employed to enforce the solid boundary *** experimental results show that the proposed method is effective and efficient for handling the flow of granular materials,and different kinds of granular behaviors can be well simulated by adjusting just one parameter.

关键词： granular materials sand smoothed particle hydrodynamics SPH Hooke’s law animation simu-lation

SELECTIVE HYDROGENATION OF CINNAMALDEHYDE OVER Pt-Sn/Al2.3.CATALYSTS

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chinese Journal of Catalysis 1995年第2期 87-88页

作者： Li, Tao Xu,Yi-de and Li Guang-Jin(state key Laboratory of Catalysis,Dalian {2. of {3. {3.,chinese academy of sciences,Dalian 11602.)

ＳＥＬＥＣＴＩＶＥＨＹＤＲＯＧＥＮＡＴＩＯＮＯＦＣＩＮＮＡＭＡＬＤＥＨＹＤＥＯＶＥＲＰｔ－Ｓｎ／Ａｌ２Ｏ３ＣＡＴＡＬＹＳＴＳ￥Ｌｉ，Ｔａｏ；Ｘｕ，Ｙｉ－ｄｅａｎｄＬｉ；Ｇｕａｎｇ－Ｊｉｎ(ＳｔａｔｅＫｅｙＬａｂｏｒａ... 详细信息

ＳＥＬＥＣＴＩＶＥＨＹＤＲＯＧＥＮＡＴＩＯＮＯＦＣＩＮＮＡＭＡＬＤＥＨＹＤＥＯＶＥＲＰｔ－Ｓｎ／Ａｌ２Ｏ３ＣＡＴＡＬＹＳＴＳ￥Ｌｉ，Ｔａｏ；Ｘｕ，Ｙｉ－ｄｅａｎｄＬｉ；Ｇｕａｎｇ－Ｊｉｎ(ＳｔａｔｅＫｅｙＬａｂｏｒａｔｏｒｙｏｆＣａｔａｌｙｓｉｓ，...

关键词： cinnamaldehyde selective hydrogenation cinnamyl alcohol Pt-Sn Catalyst

有序TiO_2.米管阵列结构的可控生长及其物相研究

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物理学报 2008年第9期57卷 5800-5805页

作者：王成伟马保宏李燕陈建彪王建刘维民西北师范大学物理与电子工程学院兰州730070 中国科学院兰州化学物理研究所固体润滑国家重点实验室兰州730000

分别在HF水溶液、含NH4F和H2.的乙二醇有机溶液中对Ti箔进行阳极氧化,得到TiO2.米管阵列结构.该结构高度有序、分布均匀、垂直取向,且通过阳极氧化工艺条件(如阳极氧化电压、电解液的选择与配比以及氧化时间等)可实现对其结构参数(如... 详细信息

分别在HF水溶液、含NH4F和H2.的乙二醇有机溶液中对Ti箔进行阳极氧化,得到TiO2.米管阵列结构.该结构高度有序、分布均匀、垂直取向,且通过阳极氧化工艺条件(如阳极氧化电压、电解液的选择与配比以及氧化时间等)可实现对其结构参数(如管径、管壁厚度、管密度、管长等)的有效控制.利用XRD研究了TiO2.米管阵列的物相结构.结果表明:退火前的TiO2.米管阵列为无定形结构;分别在真空和氧气氛中500℃退火后,HF水溶液中制备的样品出现单一锐钛矿相,而在含NH4F和H2.的乙二醇有机溶液中氧化得到的样品则出现锐钛矿和金红石的混合相.前者在氧气氛中退火后锐钛矿晶化程度较高;后者在真空中退火后混合相的晶化程度也较高.初步分析了TiO2.米管阵列的形成机理.这些结果对基于TiO2.米管阵列的传感器及有机-无机异质结太阳电池的应用研究是非常有益的.

关键词： TiO2.米管阵列阳极氧化可控生长

Preparation and Characterization of Co_(0.3.Cr_(0.7)O_x Particles Using for Thermal Radiation Coating

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稀有金属材料与工程 2012年第S1期41卷 100-103页

作者： Luo Lijie1,2.Huang Chuanbing1,Zhu Yongping1,Zhang Weigang1 1 state key Laboratory of Multi-phase Complex Systems,{2. of Process Engineering,chinese {3. of sciences,Beijing 100190,China 2.Graduate University of chinese academy of sciences,Beijing 100049,China chinese Acad Sci Inst Proc Engn State Key Lab Multiphase Complex Syst Beijing 100190 Peoples R China chinese Acad Sci Grad Univ Beijing 100049 Peoples R China

Novel Co0.3.r0.7Ox(x=2.3.particles with spinel structure were synthesized via precipitation method through the reactions among CoSO4,Cr(NO3.3.and NaOH solutions,followed by spray-drying and sintering at 12.0 ℃for 4h in the *** particles were characterized by X-ray diffraction(XRD)and scanning electron microscopy(SEM).The XRD results revealed that the particles are composed of Co0.3.r0.7Ox phase without the presence of other *** SEM observation showed that the particles are in the shape of sphere with well *** radiation test indicated that the total infrared normal emissivity of the coating made of Co0.3.r0.7Ox can be up to 0.92.at 800℃.And the normal emissivities of the prepared Co0.3.r0.7Ox particles are always slightly larger than those of CoCr2.4 particles prepared by solid-state reaction method in the test temperature range of 50-3.0℃.The relatively high thermal emissivity of Co0.3.r0.7Ox is assumed to be mainly attributed to the spinel *** results indicated that Co0.3.r0.7Ox particles are a good thermal radiation material,which can be used as infrared radiation layer in thermal protection system.

关键词： Co0.3.r0.7Ox particles preparation precipitation thermal radiation coating