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2. Experimental Procedures. |
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2.1 Detection, Identification and Estimation of Concentration of Species Present. |
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2.1.1 Chromatographic techniques: liquid-liquid and gas-liquid chromatography. |
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2.1.2 Mass spectrometry (MS). |
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2.1.3 Spectroscopic techniques. |
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2.1.6 Spin resonance methods: nuclear magnetic resonance (NMR). |
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2.1.7 Spin resonance methods: electron spin resonance (ESR). |
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2.1.8 Photoelectron spectroscopy and X-ray photoelectron spectroscopy. |
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2.2 Measuring the Rate of a Reaction. |
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2.2.1 Classification of reaction rates. |
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2.2.2 Factors affecting the rate of reaction. |
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2.2.3 Common experimental features for all reactions. |
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2.2.4 Methods of initiation. |
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2.3 Conventional Methods of Following a Reaction. |
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2.4.4 Some features of flow methods. |
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2.5.1 Large perturbations. |
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2.5.6 Small perturbations: temperature, pressure and electric field jumps. |
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2.6 Periodic Relaxation Techniques: Ultrasonics. |
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2.7 Line Broadening in NMR and ESR Spectra. |
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3. The Kinetic Analysis of Experimental Data. |
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3.1 The Experimental Data. |
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3.2 Dependence of Rate on Concentration. |
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3.3 Meaning of the Rate Expression. |
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3.4 Units of the Rate Constant, k. |
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3.5 The Significance of the Rate Constant as Opposed to the Rate. |
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3.6 Determining the Order and Rate Constant from Experimental Data. |
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3.7 Systematic Ways of Finding the Order and Rate Constant from Rate/Concentration Data. |
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3.7.1 A straightforward graphical method. |
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3.7.2 log/log Graphical procedures. |
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3.7.3 A systematic numerical procedure. |
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3.8 Drawbacks of the Rate/Concentration Methods of Analysis. |
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3.9 Integrated Rate Expressions. |
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3.10 First Order Reactions. |
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3.10.1 The half-life for a first order reaction. |
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3.10.2 An extra point about first order reactions. |
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3.11 Second Order Reactions. |
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3.11.1 The half-life for a second order reaction. |
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3.11.2 An extra point about second order reactions. |
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3.12 Zero Order Reaction. |
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3.12.1 The half-life for a zero order reaction. |
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3.13 Integrated Rate Expressions for Other Orders. |
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3.14 Main Features of Integrated Rate Equations. |
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3.15 Pseudo-order Reactions. |
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3.15.1 Application of pseudo-order techniques to rate/concentration data. |
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3.16 Determination of the Product Concentration at Various Times. |
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3.17 Expressing the Rate in Terms of Reactants or Products for Non-simple Stoichiometry. |
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3.18 The Kinetic Analysis for Complex Reactions. |
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3.18.1 Relatively simple reactions that are mathematically complex. |
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3.18.2 Analysis of the simple scheme A_! |
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3.18.3 Two conceivable situations. |
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3.19 The Steady State Assumption. |
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3.19.1 Using this assumption. |
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3.20 General Treatment for Solving Steady States. |
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3.21 Reversible Reactions. |
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3.21.1 Extension to other equilibria. |
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3.23 Dependence of Rate on Temperature. |
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4. Theories of Chemical Reactions. |
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4.1.1 Definition of a collision in simple collision theory. |
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4.1.2 Formulation of the total collision rate. |
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4.1.4 Reaction between like molecules. |
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4.2 Modified Collision Theory. |
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4.2.1 A new definition of a collision. |
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4.2.2 Reactive collisions. |
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4.2.3 Contour diagrams for scattering of products of a reaction. |
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4.2.4 Forward scattering: the stripping or grazing mechanism. |
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4.2.5 Backward scattering: the rebound mechanism. |
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4.2.6 Scattering diagrams for long-lived complexes. |
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4.3 Transition State Theory. |
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4.3.1 Transition state theory, configuration and potential energy. |
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4.3.2 Properties of the potential energy surface relevant to transition state theory. |
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4.3.3 An outline of arguments involved in the derivation of the rate equation. |
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4.3.4 Use of the statistical mechanical form of transition state theory. |
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4.3.5 Comparisons with collision theory and experimental data. |
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4.4 Thermodynamic Formulations of Transition State Theory. |
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4.4.1 Determination of thermodynamic functions for activation. |
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4.4.2 Comparison of collision theory, the partition function form and the thermodynamic form of transition state theory. |
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4.4.3 Typical approximate values of contributions entering the sign and magnitude of _S61/4_. |
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4.5.1 Manipulation of experimental results. |
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4.5.2 Physical significance of the constancy or otherwise of k1, k_1 and k2. |
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4.5.3 Physical significance of the critical energy in unimolecular reactions. |
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4.5.4 Physical significance of the rate constants k1, k_1 and k2. |
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4.5.5 The simple model: that of Lindemann. |
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4.5.6 Quantifying the simple model. |
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4.5.7 A more complex model: that of Hinshelwood. |
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4.5.8 Quantifying Hinshelwood's theory. |
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4.5.9 Critique of Hinshelwood's theory. |
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4.5.10 An even more complex model: that of Kassel. |
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4.5.11 Critique of the Kassel theory. |
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4.5.12 Energy transfer in the activation step. |
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5. Potential Energy Surfaces. |
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5.1 The Symmetrical Potential Energy Barrier. |
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5.4 Types of Elementary Reaction Studied. |
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5.5 General Features of Early Potential Energy Barriers for Exothermic Reactions. |
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5.6 General Features of Late Potential Energy Surfaces for Exothermic Reactions. |
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5.6.1 General features of late potential energy surfaces where the attacking atom is light. |
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5.6.2 General features of late potential energy surfaces for exothermic reactions where the attacking atom is heavy. |
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5.7 Endothermic Reactions. |
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5.8 Reactions with a Collision Complex and a Potential Energy Well |
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6. Complex Reactions in the Gas Phase. |
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6.1 Elementary and Complex Reactions. |
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6.2 Intermediates in Complex Reactions. |
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6.4 Mechanistic Analysis of Complex Non-chain Reactions. |
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6.5 Kinetic Analysis of a Postulated Mechanism: Use of the Steady State Treatment. |
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6.5.1 A further example where disentangling of the kinetic data is necessary. |
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6.6 Kinetically Equivalent Mechanisms. |
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6.7 A Comparison of Steady State Procedures and Equilibrium Conditions in the Reversible Reaction. |
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6.8 The Use of Photochemistry in Disentangling Complex Mechanisms. |
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6.8.1 Kinetic features of photochemistry. |
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6.8.2 The reaction of H2 with I2. |
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6.9.1 Characteristic experimental features of chain reactions. |
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6.9.2 Identification of a chain reaction. |
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6.9.3 Deduction of a mechanism from experimental data. |
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6.9.4 The final stage: the steady state analysis. |
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6.10 Inorganic Chain Mechanisms. |
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6.10.1 The H2/Br2 reaction. |
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6.10.2 The steady state treatment for the H2/Br2 reaction. |
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6.10.3 Reaction without inhibition. |
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6.10.4 Determination of the individual rate constants. |
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6.11 Steady State Treatments and Possibility of Determination of All the Rate Constants. |
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6.11.1 Important points to note. |
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6.12 Stylized Mechanisms: A Typical Rice-Herzfeld Mechanism. |
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6.12.1 Dominant termination steps. |
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6.12.2 Relative rate constants for termination steps. |
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6.12.3 Relative rates of the termination steps. |
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6.12.4 Necessity for third bodies in termination. |
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6.12.5 The steady state treatment for chain reactions, illustrating the use of the long chain approximation. |
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6.12.6 Further problems on steady states and the Rice-Herzfeld mechanism. |
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6.13 Special Features of the Termination Reactions: Termination at the Surface. |
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6.13.1 A general mechanism based on the Rice-Herzfeld mechanism used previously. |
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6.14.1 Autocatalysis and autocatalytic explosions. |
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6.14.2 Thermal explosions. |
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6.14.3 Branched chain explosions. |
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6.14.4 A highly schematic and simplified mechanism for a branched chain reaction. |
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6.14.5 Kinetic criteria for non-explosive and explosive reaction. |
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6.14.6 A typical branched chain reaction showing explosion limits. |
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6.14.7 The dependence of rate on pressure and temperature. |
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6.15 Degenerate Branching or Cool Flames. |
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6.15.1 A schematic mechanism for hydrocarbon combustion. |
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6.15.2 Chemical interpretation of 'cool' flame behaviour. |
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7. Reactions in Solution. |
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7.1 The Solvent and its Effect on Reactions in Solution. |
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7.2 Collision Theory for Reactions in Solution. |
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7.2.1 The concepts of ideality and non-ideality. |
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7.3 Transition State Theory for Reactions in Solution. |
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7.3.1 Effect of non-ideality: the primary salt effect. |
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7.3.2 Dependence of _S61/4_ and _H61/4_ on ionic strength. |
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7.3.3 The effect of the solvent. |
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7.3.4 Extension to include the effect of non-ideality. |
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7.3.5 Deviations from predicted behaviour. |
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7.4 _S61/4_ and Pre-exponential A Factors. |
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7.4.1 A typical problem in graphical analysis. |
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7.4.2 Effect of the molecularity of the step for which _S61/4_ is found. |
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7.4.3 Effect of complexity of structure. |
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7.4.4 Effect of charges on reactions in solution. |
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7.4.5 Effect of charge and solvent on _S61/4_ for ion-ion reactions. |
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7.4.6 Effect of charge and solvent on _S61/4_ for ion-molecule reactions. |
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7.4.7 Effect of charge and solvent on _S61/4_ for molecule-molecule reactions. |
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7.4.8 Effects of changes in solvent on _S61/4_. |
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7.4.9 Changes in solvation pattern on activation, and the effect on A factors for reactions involving charges and charge-separated species in solution. |
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7.4.10 Reactions between ions in solution. |
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7.4.11 Reaction between an ion and a molecule. |
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7.4.12 Reactions between uncharged polar molecules. |
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7.5.1 Effect of the molecularity of the step for which the _H61/4_ value is found. |
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7.5.2 Effect of complexity of structure. |
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7.5.3 Effect of charge and solvent on _H61/4_ for ion-ion and ion-molecule reactions. |
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7.5.4 Effect of the solvent on _H61/4_ for ion-ion and ion-molecule reactions. |
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7.5.5 Changes in solvation pattern on activation and the effect on _H61/4_. |
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7.6 Change in Volume on Activation, _V61/4_. |
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7.6.1 Effect of the molecularity of the step for which _V61/4_ is found. |
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7.6.2 Effect of complexity of structure. |
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7.6.3 Effect of charge on _V61/4_ for reactions between ions. |
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7.6.4 Reactions between an ion and an uncharged molecule. |
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7.6.5 Effect of solvent on _V61/4_. |
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7.6.6 Effect of change of solvation pattern on activation and its effect on _V61/4_. |
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7.7 Terms Contributing to Activation Parameters. |
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7.7.1 _S61/4_. |
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7.7.2 _V61/4_. |
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7.7.3 _H61/4_. |
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8. Examples of Reactions in Solution. |
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8.1 Reactions Where More than One Reaction Contributes to the Rate of Removal of Reactant. |
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8.1.2 A slightly more complex reaction where reaction occurs by two concurrent routes, and where both reactants are in equilibrium with each other. |
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8.1.3 Further disentangling of equilibria and rates, and the possibility of kinetically equivalent mechanisms. |
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8.1.4 Distinction between acid and base hydrolyses of esters. |
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8.2 More Complex Kinetic Situations Involving Reactants in Equilibrium with Each Other and Undergoing Reaction. |
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8.2.1 A further look at the base hydrolysis of glycine ethyl ester as an illustration of possible problems. |
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8.2.2 Decarboxylations of _-keto-monocarboxylic acids. |
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8.2.3 The decarboxylation of _-keto-dicarboxylic acids. |
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8.4 Other Common Mechanisms. |
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8.4.1 The simplest mechanism. |
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8.4.2 Kinetic analysis of the simplest mechanism. |
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8.4.3 A slightly more complex scheme. |
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8.4.4 Standard procedure for determining the expression for kobs for the given mechanism. |
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8.5 Steady States in Solution Reactions. |
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8.5.1 Types of reaction for which a steady state treatment could be relevant. |
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8.5.2 A more detailed analysis of Worked Problem 6.5. |
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List of Specific Reactions. |
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