The subject of the book is electron transfer reactions in organic chemistry, with the emphasis on mechanistic aspects. The theoretical framework is that of the Marcus theory, well-known from its extensive use in inorganic chemistry. The book deals with definitions of electron transfer, theory of electron transfer reactions (Marcus' and Pross-Shaik's approach) experimental diagnosis of electron transfer reactions, examples from inorganic/organic reactants and purely organic reactants, electro- and photochemical electron transfer, electron transfer catalyzed reactions, connections between electron transfer and polar mechanisms, and applications of electron transfer, such as electrosynthesis of organic chemicals, photochemical energy storage, conducting organic materials and chemiluminescence. The approach is new in so far as no comparable book has been published. The book will be of value to anyone interested in keeping track of developments in physical organic chemistry.I Electron Transfer, a Neglected Concept in Organic Chemistry.- I.1 Electron Transfer is Fundamental in Many Areas of Organic Chemistry.- I.2 Organic Electron Transfer Theories Come in Cycles.- I.3 References.- II Concepts and Definitions.- II.1 Electron Transfer Can Be Defined in Several Ways.- II.2 Inner-and Outer-sphere Electron Transfer.- II.3 Other Concepts in Electron Transfer Chemistry.- II.4 References.- III Theories of Electron Transfer in Organic Chemistry.- III.1 The Thermodynamic Approach to Electron Transfer Reactivity.- III.2 The Single Electron Shift, a Configuration Mixing Model of Electron Transfer Reactivity.- III.3 The Marcus Theory for Outer-sphere ET.- III.3.a The Physical Model.- 111.3. b The Marcus Equation.- III.3.c Properties of the Marcus Expression.- III. 4 Kinetic Models of Electron Transfer Mechanisms.- III.4.a The Collide-and React Model.- III.4.b The Kinetic Model of Reversible Electron Transfer.- III.5 The Marcus Inverted Region.- III.6 The Rehm-Weiler and Agmon-Levine lĂ-