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归宿
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给排水工程师
谁表面活性剂手册? 想查各种 表面活性剂 的沸点查看更多 5个回答 . 6人已关注
氧化铝的焙烧问题? 我看文献上一般 氧化铝 做 催化剂载体 时焙烧温度都在450度以上,但我想在氧化铝中加点东西,这个东西的沸点在400度,所以我想问下氧化铝在450度焙烧时能成型吗,孔大小比500焙烧时怎么样?查看更多 12个回答 . 18人已关注
咨询旋转蒸发仪-水循环式真空泵? 我的主要目的是:将溶液中低沸点的溶剂通过旋转蒸发的方式蒸掉,不需要回收。我的问题是:1. 真空泵 操作时需要接进、出水管吗?2. 关机时这样操作是否可以:关旋转电机——关 水浴锅 ——关真空泵——开放气阀门——取下蒸发瓶,是不是这样?还是关旋转电机——关水浴锅——开放气阀门——关真空泵——取下蒸发瓶?查看更多 4个回答 . 19人已关注
实验室炼胶设备? 想买一台 密炼机 或者哈克转矩 流变仪 ,实验室炼胶用,朋友们推荐几个厂家吧查看更多 10个回答 . 13人已关注
量子化学 Quantum Chemistry and spectroscopy Thomas Engel著? 电子档PDF,希望对大家有用。目录From Classical to QuantumMechanics 11.1 Why Study Quantum Mechanics? 11.2 Quantum Mechanics Arose out of the Interplay ofExperiments and Theory 21.3 Blackbody Radiation 31.4 The Photoelectric Effect 41.5 Particles Exhibit Wave-Like Behavior 61.6 Diffraction by a Double Slit 81.7 Atomic Spectra and the Bohr Model of theHydrogen Atom 112 The Schr?dinger Equation 172.1 What Determines If a System Needs to BeDescribed Using Quantum Mechanics? 172.2 Classical Waves and the Nondispersive WaveEquation 212.3 Waves Are Conveniently Represented asComplex Functions 252.4 Quantum Mechanical Waves and the Schr?dingerEquation 262.5 Solving the Schr?dinger Equation: Operators,Observables, Eigenfunctions, and Eigenvalues 282.6 The Eigenfunctions of a Quantum MechanicalOperator Are Orthogonal 302.7 The Eigenfunctions of a Quantum MechanicalOperator Form a Complete Set 322.8 Summing Up the New Concepts 343 The Quantum MechanicalPostulates 393.1 The Physical Meaning Associated with the WaveFunction Is Probability 403.2 Every Observable Has a CorrespondingOperator 413.3 The Result of an Individual Measurement 423.4 The Expectation Value 423.5 The Evolution in Time of a QuantumMechanical System 463.6 Do Superposition Wave Functions Really Exist? 464 Using Quantum Mechanics onSimple Systems 514.1 The Free Particle 514.2 The Particle in a One-Dimensional Box 534.3 Two- and Three-Dimensional Boxes 574.4 Using the Postulates to Understand the Particle inthe Box and Vice Versa 585 The Particle in the Box and theReal World 695.1 The Particle in the Finite Depth Box 695.2 Differences in Overlap between Core and ValenceElectrons 705.3 Pi Electrons in Conjugated Molecules Can BeTreated as Moving Freely in a Box 715.4 Why Does Sodium Conduct Electricity and WhyIs Diamond an Insulator? 725.5 Traveling Waves and Potential Energy Barriers 735.6 Tunneling through a Barrier 755.7 The Scanning Tunneling Microscope and theAtomic Force Microscope 775.8 Tunneling in Chemical Reactions 825.9 (Supplemental) Quantum Wells andQuantum Dots 836 Commuting and NoncommutingOperators and the SurprisingConsequences of Entanglement 916.1 Commutation Relations 916.2 The Stern–Gerlach Experiment 936.3 The Heisenberg Uncertainty Principle 966.4 (Supplemental) The Heisenberg UncertaintyPrinciple Expressed in Terms of StandardDeviations 1006.5 (Supplemental) A Thought Experiment Using aParticle in a Three-Dimensional Box 1026.6 (Supplemental) Entangled States, Teleportation,and Quantum Computers 1047 A Quantum Mechanical Model forthe Vibration and Rotation ofMolecules 1137.1 The Classical Harmonic Oscillator 1137.2 Angular Motion and the Classical Rigid Rotor 1177.3 The Quantum Mechanical HarmonicOscillator 1197.4 Quantum Mechanical Rotation in TwoDimensions 1247.5 Quantum Mechanical Rotation in ThreeDimensions 1277.6 The Quantization of Angular Momentum 1297.7 The Spherical Harmonic Functions 1317.8 Spatial Quantization 1338 The Vibrational and RotationalSpectroscopy of DiatomicMolecules 1398.1 An Introduction to Spectroscopy 1398.2 Absorption, Spontaneous Emission, andStimulated Emission 1418.3 An Introduction to Vibrational Spectroscopy 1438.4 The Origin of Selection Rules 1468.5 Infrared Absorption Spectroscopy 1488.6 Rotational Spectroscopy 1518.7 (Supplemental) Fourier Transform InfraredSpectroscopy 1578.8 (Supplemental) Raman Spectroscopy 1598.9 (Supplemental) How Does the Transition Ratebetween States Depend on Frequency? 1619 The Hydrogen Atom 1739.1 Formulating the Schr?dinger Equation 1739.2 Solving the Schr?dinger Equation for theHydrogen Atom 1749.3 Eigenvalues and Eigenfunctions for theTotal Energy 1759.4 The Hydrogen Atom Orbitals 1819.5 The Radial Probability DistributionFunction 1839.6 The Validity of the Shell Model ofan Atom 187vi CONTENTS10 Many-Electron Atoms 19110.1 Helium: The Smallest Many-Electron Atom 19110.2 Introducing Electron Spin 19310.3 Wave Functions Must Reflect theIndistinguishability of Electrons 19410.4 Using the Variational Method to Solve theSchr?dinger Equation 19810.5 The Hartree–Fock Self-Consistent FieldMethod 19910.6 Understanding Trends in the Periodic Tablefrom Hartree–Fock Calculations 20711 Quantum States forMany-Electron Atoms andAtomic Spectroscopy 21511.1 Good Quantum Numbers, Terms, Levels, andStates 21511.2 The Energy of a Configuration Depends on BothOrbital and Spin Angular Momentum 21711.3 Spin-Orbit Coupling Breaks Up a Term intoLevels 22411.4 The Essentials of Atomic Spectroscopy 22511.5 Analytical Techniques Based on AtomicSpectroscopy 22711.6 The Doppler Effect 23011.7 The Helium-Neon Laser 23111.8 Laser Isotope Separation 23411.9 Auger Electron and X-Ray PhotoelectronSpectroscopies 23511.10 Selective Chemistry of Excited States:O(3P) and O(1D) 23811.11 (Supplemental) Configurations with Paired andUnpaired Electron Spins Differ in Energy 23912 The Chemical Bond in DiatomicMolecules 24512.1 Generating Molecular Orbitals from AtomicOrbitals 24512.2 The Simplest One-Electron Molecule:24912.3 The Energy Corresponding to theMolecular Wave Functions and 25112.4 A Closer Look at the Molecular WaveFunctions cg and cu 25412.5 Homonuclear Diatomic Molecules 25612.6 The Electronic Structure of Many-ElectronMolecules 26012.7 Bond Order, Bond Energy, and BondLength 26312.8 Heteronuclear Diatomic Molecules 26512.9 The Molecular Electrostatic Potential 26813 Molecular Structure and EnergyLevels for Polyatomic Molecules 27513.1 Lewis Structures and the VSEPR Model 27513.2 Describing Localized Bonds Using Hybridizationfor Methane, Ethene, and Ethyne 27813.3 Constructing Hybrid Orbitals for NonequivalentLigands 28113.4 Using Hybridization to Describe ChemicalBonding 28413.5 Predicting Molecular Structure UsingQualitative Molecular Orbital Theory 28613.6 How Different Are Localized and DelocalizedBonding Models? 28913.7 Molecular Structure and Energy Levels fromComputational Chemistry 29213.8 Qualitative Molecular Orbital Theory forConjugated and Aromatic Molecules: TheHückel Mode 29413.9 From Molecules to Solids 30013.10 Making Semiconductors Conductive at RoomTemperature 30114 Electronic Spectroscopy 30914.1 The Energy of Electronic Transitions 30914.2 Molecular Term Symbols 31014.3 Transitions between Electronic States ofDiatomic Molecules 31314.4 The Vibrational Fine Structure of ElectronicTransitions in Diatomic Molecules 31414.5 UV-Visible Light Absorption in PolyatomicMolecules 31614.6 Transitions among the Ground and ExcitedStates 31814.7 Singlet–Singlet Transitions: Absorption andFluorescence 31914.8 Intersystem Crossing and Phosphorescence 32114.9 Fluorescence Spectroscopy and AnalyticalChemistry 32214.10 Ultraviolet Photoelectron Spectroscopy 32314.11 Single Molecule Spectroscopy 32514.12 Fluorescent Resonance EnergyTransfer (FRET) 32714.13 Linear and Circular Dichroism 33114.14 Assigning and to Terms of DiatomicMolecules 33315 Computational Chemistry 33915.1 The Promise of Computational Chemistry 33915.2 Potential Energy Surfaces 34015.3 Hartree–Fock Molecular Orbital Theory: A DirectDescendant of the Schr?dinger Equation 34415.4 Properties of Limiting Hartree–Fock Models 34615.5 Theoretical Models and Theoretical ModelChemistry 35115.6 Moving Beyond Hartree–Fock Theory 35215.7 Gaussian Basis Sets 35715.8 Selection of a Theoretical Model 36015.9 Graphical Models 37415.10 Conclusion 38216 Molecular Symmetry 39516.1 Symmetry Elements, Symmetry Operations, andPoint Groups 39516.2 Assigning Molecules to Point Groups 39716.3 The H2O Molecule and the C2v Point Group 39916.4 Representations of Symmetry Operators, Basesfor Representations, and the Character Table 40416.5 The Dimension of a Representation 40616.6 Using the C2v Representations to ConstructMolecular Orbitals for H2O 41016.7 The Symmetries of the Normal Modes ofVibration of Molecules 41216.8 Selection Rules and Infrared versus RamanActivity 41616.9 (Supplemental) Using the Projection OperatorMethod to Generate MOs That Are Bases forIrreducible Representations 41717 Nuclear Magnetic ResonanceSpectroscopy 42317.1 Intrinsic Nuclear Angular Momentum andMagnetic Moment 42317.2 The Energy of Nuclei of Nonzero Nuclear Spinin a Magnetic Field 42517.3 The Chemical Shift for an Isolated Atom 42717.4 The Chemical Shift for an Atom Embedded in aMolecule 42817.5 Electronegativity of Neighboring Groups andChemical Shifts 42917.6 Magnetic Fields of Neighboring Groups andChemical Shifts 43017.7 Multiplet Splitting of NMR Peaks Arisesthrough Spin–Spin Coupling 43117.8 Multiplet Splitting When More Than Two SpinsInteract 43617.9 Peak Widths in NMR Spectroscopy 43817.10 Solid-State NMR 44017.11 NMR Imaging 44017.12 (Supplemental)The NMR Experiment in theLaboratory and Rotating Frames 44217.13 (Supplemental) Fourier Transform NMRSpectroscopy 44417.14 (Supplemental) Two-Dimensional NMR 448APPENDIX A Math Supplement 455APPENDIX B Point Group Character Tables 477APPENDIX C Answers to Selected End-of-ChapterProblems 485CREDITS 489INDEX 491查看更多 3个回答 . 4人已关注
手套箱内锂片变黄? 我们买的 手套箱 内的锂片老是刮开过一会变黄,然后变成 亮蓝 色,最后变黑色。刚开始认为是手套箱密封不好,湿度高,有 氮气 存在,但是手套箱修过,氧,水含量都正常,工作气体也换了,锂片仍变黄。请大家谈谈是否遇到过此类现象?都是怎么解决的?谢谢大家啦!查看更多 7个回答 . 17人已关注
一次颗粒二次颗粒的区别,富锂锰基的合成方法有哪些?谢谢啦? 一次颗粒二次颗粒的区别,富锂锰基的合成方法有哪些?谢谢啦查看更多 2个回答 . 20人已关注
谁有中南大学郭炳坤《锂离子电池》的课件啊!? 谁有中南大学郭炳坤《 锂离子电池 》的课件啊!麻烦给发一份,金币好说,呵呵!chemcj@126.com查看更多 3个回答 . 12人已关注
康塔的化学吸附仪测固体酸催化剂的酸强和酸量? 最近,我在做固体酸 催化剂 ,用康塔的 化学吸附仪 测酸强度和酸量, 吸附仪 的具体操作为:样品准备(把0.1克样品装进U型石英管,然后用石英棉堵住石英管一端,把样品管固定好,插好温度监测器)——打开软件(双击电脑屏幕上的TPWIN图标)——启动设备(打开电源开关,打开气道控制阀,切换阀转到样品池)——调节参数(TCD调到150,衰减先调到最大再调零,之后衰减又调到4再信号调零)——启动检测程序(先点Data acquisition ,再点chemBET,选择analysis program,再点Execute,填写操作者,选择气体氨气,衰减4等,ok)——摁下加热炉的开关——在开始程序升温,脱除氨气之前(记录数据并出图前)再次用Signal zero把信号调为零,升温到500度点end analysis。希望高人帮我看看,哪里有问题?查看更多 7个回答 . 2人已关注
有关催化反应的问题,请各位大侠指点迷津? 我用 活性炭 为载体的 催化剂 做反应,为什么反应一段时间跟固定床 反应器 相连接的压力表压力上升,然后拆开反应器,催化剂基本上全变成粉末了,不知是什么原因,请高手帮忙,O(∩_∩)O谢谢查看更多 7个回答 . 19人已关注
想问要如何测试某未知固体是否为高分子聚合物? 请问各位专家们如果对一个未知的固体样品 有什么仪器可以 测试 这个固体是否是高分子 聚合物 呢?因为想分辨出我的这个未知物只是单纯的无机固体 还是 高分子聚合而成的聚合物有哪种仪器可以检验呢?还是说有什么实验方法可以测试?(如添加哪种溶剂测试?)查看更多 6个回答 . 1人已关注
气象色谱图的分析? 我用 气相色谱仪 得到了自己厂家生产的 薄荷油 气象色谱图和标准的薄荷油的气象色谱图!如何从这两个图中得出自己厂家生产的薄荷油的含量???关键是我不知道哪个峰是薄荷油的,那些是 杂质 的!!!求大神指导??!!查看更多 6个回答 . 8人已关注
质谱氢谱高手请帮忙!? 我们委托厂家做了一个产品,结构式见图,后来客户发现结晶度非常差,与之前用的区别很大。她自己做了个质谱,质谱图见附件,她说不应该出现250.00的离子峰,出现这样的峰是产品脱去了一个羧基,她以前用过其他家的,就没有出现过这个峰。我想药品如果在合成中羧基就被脱去了,核磁中应该能看到多出一个氢,但是核磁中也没看到(核磁见附件),我想请教一下有没有可能这个峰是分子离子在裂解时脱去了羧基?百思不得其解,望高手解答结构式.jpgMS.jpg查看更多 4个回答 . 13人已关注
有谁是杨荣华老师的研究生呢? 本人今年保研,想去湖南大学杨荣华老师门下当研究生,你们觉得怎么样呢查看更多 7个回答 . 3人已关注
溶剂型地坪中加入二甲苯,为什么还要加正丁醇。两者比列是多少合适,有点晕了? 溶剂型地坪中加入二 甲苯 ,为什么还要加正 丁醇 ?两者比列是多少合适,我试了4:1和7:3的感觉没什么区别,有什么评价方法?谢谢查看更多 6个回答 . 1人已关注
求助关于过滤的问题。? 水里的 硫酸 根用 氯化 钡沉淀出来后,用什么样的滤膜过滤,具体怎么操作?拜谢查看更多 7个回答 . 11人已关注
有谁知道实验室用的锂离子电池铜箔是在哪里买的? 大家好,我想问一下有谁知道实验室用的 锂离子电池 铜箔 集流体是在哪里买的?规格是什么的?就是厚度是0.04mm,长度7cm,长卷装的。谢谢!查看更多 7个回答 . 8人已关注
最基本的ph计的保护液是什么 为什么是它盖德也没几个人知道吧 ╮(╯▽╰)╭? 网上资料 个人觉得ph=4的饱和KCl溶液正确,一是补充外参比液中的KCl,二是补充 玻璃 小球上的H离子,配置称取223.5gKCl,用ph=4的缓冲盐溶解定容到1000mL,刚配制试了试。可是ph=3.4,不明白。。。。查看更多 7个回答 . 11人已关注
小白求助,关于硬脂酸和丙二胺反应? 两种物品反应最主要生成什么物质,如果按一个配方,正常情况下高温反应后,酸值和氨值能达到要求,如果高温反应后,酸值偏高,是什么因数造成,求大神告知查看更多 5个回答 . 14人已关注
求助:卖高压釜的国外公司? 本人欲购置一个高温高压的 玻璃反应釜 ,请对此熟悉的各位帮个忙给推荐一些国外的公司,在此不胜感激您的帮忙,谢谢!查看更多 12个回答 . 16人已关注
简介
职业:泉州振戎石化仓储有限公司 - 给排水工程师
学校:湖南工程职业技术学院 - 化学化工系
地区:山东省
个人简介:成功大易,而获实丰于斯所期,浅人喜焉,而深识者方以为吊。查看更多
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