Electron Transfer and Radical Processes in Transition-metal Chemistry

Electron Transfer and Radical Processes in Transition-metal Chemistry PDF Author: Didier Astruc
Publisher: VCH Publishers
ISBN:
Category : Science
Languages : en
Pages : 664

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Electron Transfer and Radical Processes in Transition-metal Chemistry

Electron Transfer and Radical Processes in Transition-metal Chemistry PDF Author: Didier Astruc
Publisher: VCH Publishers
ISBN:
Category : Science
Languages : en
Pages : 664

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Organometallic Radical Processes

Organometallic Radical Processes PDF Author: William C. Trogler
Publisher: Elsevier Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 402

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Book Description
Odd electron organotransition metal complexes, once viewed as isolated exceptions to the 18-electron rule, are now recognized as a subset of compounds with unique reactivities. The identification of organometallic radicals as intermediates in the reaction mechanisms of even electron systems makes them increasingly important to the non-radical chemist as well. This book focuses on the generation, spectroscopic properties, structures, and reaction mechanisms exhibited by 17- and 19-electron organometallic complexes. The topics discussed center on transition metal complexes, although analogies to the chemistry of main group radicals are illustrated when appropriate. The material has been organized into ten self-contained chapters so that the reader can learn selectively about a particular area of interest. Two chapters focus on the techniques of electrochemistry and ESR spectroscopy, which are particularly suited to the study of organometallic radicals. Another chapter provides an overview of geometrical structrures for stable radicals.

Electron Transfer Reactions in Organic Chemistry

Electron Transfer Reactions in Organic Chemistry PDF Author: Lennart Eberson
Publisher: Springer Science & Business Media
ISBN: 3642725449
Category : Science
Languages : en
Pages : 245

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Book Description
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.

New Developments in Organometallic Chemistry Research

New Developments in Organometallic Chemistry Research PDF Author: Marin A. Cato
Publisher: Nova Publishers
ISBN: 9781594548444
Category : Science
Languages : en
Pages : 242

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Book Description
Organometallic chemistry is based on the reactions and use of a class of compounds (R-M) that contain a covalent bond between carbon and metal. They are prepared either by direct reaction of the metal with an organic compound or by replacement of a metal from another organometallic substance. Research in organometallic chemistry is also conducted in the areas of cluster synthesis, main-group derivatives in unusual oxidation states, organometallic polymers, unstable organometallic compounds and intermediates in matrices, structure determination of organometallic compounds in the solid state [X-ray diffraction] and gaseous states [electron diffraction], and mechanisms of reactions of transient silylenes and related species. In addition to the traditional metals and semimetals, elements such as selenium, lithium and magnesium are considered to form organometallic compounds, e.g. organomagnesium compounds MeMgI, iodo(methyl)magnesium and diethylmagnesium, which are Grignard reagents an organo-lithium compound BuLi butyllithium; Organometallic compounds often find practical use as catalysts, the processing of petroleum products and the production of organic polymers.

Frontiers in Organometallic Chemistry

Frontiers in Organometallic Chemistry PDF Author: Marin A. Cato
Publisher: Nova Publishers
ISBN: 9781594548864
Category : Science
Languages : en
Pages : 336

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Book Description
A black hole is a point of extreme mass in space-time with a radius, or event horizon, inside of which all electromagnetic radiation (including light) is trapped by gravity. A black hole is an extremely compact object, collapsed by gravity which has overcome electric and nuclear forces. It is believed that stars appreciably larger than the Sun, once they have exhausted all their nuclear fuel, collapse to form black holes: they are "black" because no light escapes their intense gravity. Material attracted to a black hole, though, gains enormous energy and can radiate part of it before being swallowed up. Some astronomers believe that enormously massive black holes exist in the centre of our galaxy and of other galaxies. This book brings together leading research from throughout the world.

Electron Transfer Reactions

Electron Transfer Reactions PDF Author: R. D. Cannon
Publisher: Butterworth-Heinemann
ISBN: 1483103293
Category : Science
Languages : en
Pages : 364

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Book Description
Electron Transfer Reactions deals with the mechanisms of electron transfer reactions between metal ions in solution, as well as the electron exchange between atoms or molecules in either the gaseous or solid state. The book is divided into three parts. Part 1 covers the electron transfer between atoms and molecules in the gas state. Part 2 tackles the reaction paths of oxidation states and binuclear intermediates, as well as the mechanisms of electron transfer. Part 3 discusses the theories and models of the electron transfer process; theories and experiments involving bridged electron transfer; optical electron transfer; and electron transfer in the solid state. The text is recommended for chemists who would like to know more about the principles and mechanisms behind electron transfer reactions.

Induced Electron Transfer in Systems of Transition Metal Ions and Complexes

Induced Electron Transfer in Systems of Transition Metal Ions and Complexes PDF Author: Mary Ellen Foley
Publisher:
ISBN:
Category : Cobalt compounds
Languages : en
Pages : 132

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Free Radicals in Chemistry and Biology

Free Radicals in Chemistry and Biology PDF Author: Milan Lazar
Publisher: CRC Press
ISBN: 9780849353871
Category : Science
Languages : en
Pages : 322

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Book Description
Elementary radical reactions are described in terms of fundamental knowledge of organic chemistry and chemical physics in this valuable reference text. The complex radical processes of nonchain and chain mechanisms, such as dimerization, alkylation, polymerization, telomerization, halogenation pyrolysis, oxidation and combustion, are complemented by reactions in chemical lasers and in the cosmos, as well as by reactions in biological objects under normal or pathological metabolism. The text also provides the synthesis of facts from various fields of research and involves mechanisms where free radicals appear either as main or side intermediates in one of the several alternatives of the reaction pathway. Highlights include 38 tables and 39 figures.

Photoprocesses in Transition Metal Complexes, Biosystems and Other Molecules. Experiment and Theory

Photoprocesses in Transition Metal Complexes, Biosystems and Other Molecules. Experiment and Theory PDF Author: E. Kochanski
Publisher: Springer Science & Business Media
ISBN: 9401126984
Category : Science
Languages : en
Pages : 448

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Book Description
The scope of this paper is to recall fundamental notions of the molecular spectroscopy and dynamics, necessary for discussion of photophysical and photochemical processes in condensed phases. We will thus treat in a more detailed way the specific features which are important for molecular systems strongly interacting with their environment. Other aspects such as the time evolution of isolated molecules, single-level excitation and state-to-state chemistry, important for the gas-phase photophysics are omitted. We start (Sec.2) with a brief description of radiative processes (light absorption and emission) in molecules. In the quantum-mechanical treatment of this problem, the appropriate basis is that of so-called zero-order states, corresponding to the traditional scheme of electronic states (singlets, doublets, triplets etc.) and vibrational levels belonging to each state. The important point will be deduction of selection rules for most radiative transitions. At this stage all molecular states are considered as stationary states. In order to treat the breakdown of simple selection rules and non-radiative transitions between individual molecular states, it is necessary to take into account the mechanisms coupling the zero-order states (Sec.3). We will first focus on intramolecular coupling effects and then discuss the solvent effects on intramolecular relaxation processes. The problem of the non-radiative transfer of the electronic energy between different molecules - closely related to that of the energy dissipation within a single molecule will be treated in Sec.4.

Inorganic and Organometallic Reaction Mechanisms

Inorganic and Organometallic Reaction Mechanisms PDF Author: Jim D. Atwood
Publisher: John Wiley & Sons
ISBN: 0471188972
Category : Science
Languages : en
Pages : 327

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Book Description
Jetzt in neuer Auflage: Das erfolgreiche Lehrwerk über Kinetik und Mechanismen anorganischer und organometallischer Reaktionen für fortgeschrittene Studenten! Hervorragend geeignet als Begleiter eines Vorlesungssemesters. Mit zahlreichen Übungsaufgaben; für eine bessere Übersicht sorgen Zusammenfassungen am Ende jedes Kapitels.