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Informationen zum Autor E. C. M. CHEN is Professor Emeritus in the Department of Natural and Applied Sciences at the University of Houston-Clear Lake. E. S. CHEN is formerly of the Center for Research on Parallel Computation at Rice University in Houston, Texas. Klappentext Broad in scope, this book describes the general theory and practice of using the Electron Capture Detector (ECD) to study reactions of thermal electrons with molecules. It reviews electron affinities and thermodynamic and kinetic parameters of atoms, small molecules, and large organic molecules obtained by using various methods.* Summarizes other methods for studying reactions of thermal electrons with molecules* Discusses applications in analytical chemistry, physical chemistry, and biochemistry* Provides a data table of electron affinities Zusammenfassung Broad in scope, this book describes the general theory and practice of using the Electron Capture Detector (ECD) to study reactions of thermal electrons with molecules. It reviews electron affinities and thermodynamic and kinetic parameters of atoms, small molecules, and large organic molecules obtained by using various methods.* Summarizes other methods for studying reactions of thermal electrons with molecules* Discusses applications in analytical chemistry, physical chemistry, and biochemistry* Provides a data table of electron affinities Inhaltsverzeichnis Foreword xiii Preface xv 1. Scope and History of the Electron 1 1.1 General Objectives and Organization 1 1.2 General Scope 2 1.3 History of the Electron 4 References 6 2. Definitions, Nomenclature, Reactions, and Equations 8 2.1 Introduction 8 2.2 Definition of Kinetic and Energetic Terms 8 2.3 Additional Gas Phase Ionic Reactions 15 2.4 Electron Affinities from Solution Data 16 2.5 Semi-Empirical Calculations of Energetic Quantities 17 2.6 Herschbach Ionic Morse Potential Energy Curves 18 2.7 Summary 19 References 20 3. Thermal Electron Reactions at the University of Houston 22 3.1 General Introduction 22 3.2 The First Half-Century, 1900 to 1950 23 3.3 Fundamental Discovery, 1950 to 1960 25 3.4 General Accomplishments, 1960 to 1970 27 3.4.1 Introduction 27 3.4.2 The Wentworth Group 28 3.4.3 Stable Negative-Ion Formation 28 3.4.4 Dissociative Thermal Electron Attachment 33 3.4.5 Nonlinear Least Squares 35 3.5 Milestones in the Wentworth Laboratory and Complementary Methods, 1970 to 1980 37 3.6 Negative-Ion Mass Spectrometry and Morse Potential Energy Curves, 1980 to 1990 40 3.7 Experimental and Theoretical Milestones, 1990 to 2000 41 3.8 Summary of Contributions at the University of Houston 42 References 43 4. Theoretical Basis of the Experimental Tools 47 4.1 Introduction 47 4.2 The Kinetic Model of the ECD and NIMS 47 4.3 Nondissociative Electron Capture 50 4.4 Dissociative Electron Attachment 59 4.5 Electron Affinities and Half-Wave Reduction Potentials 64 4.6 Electron Affinities and Ionization Potentials of Aromatic Hydrocarbons 66 4.7 Electron Affinities and Charge Transfer Complex Energies 67 4.8 Summary 71 References 73 5. Experimental Procedures and Data Reduction 75 5.1 Introduction 75 5.2 Experimental ECD and NICI Procedures 76 5.3 Reduction of ECD Data to Fundamental Properties 85 5.3.1 Introduction 85 5.3.2 Acetophenone and Benzaldehyde 86 5.3.3 Benzanthracene, Benz[a]pyrene, and 1-Naphthaldehyde 87 5.3.4 Carbon Disulfide 89 5.3.5 Nitromethane 90 5.3.6 Consolidation of Electron Affinities for Molecular Oxygen 91 5.4 Reduction of Negative-Ion Mass Spectral Data 93 5.5 Precision and Accuracy 96...
