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Author : Jie Yu
Publisher :
ISBN 13 :
Total Pages : 326 pages
Book Rating : 4.:/5 (282 download)
Download or read book Excited State Electron Transfer Processes in Solution and at Solid Surfaces written by Jie Yu and published by . This book was released on 1993 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Timothy Daniel Kowalczyk
Publisher :
ISBN 13 :
Total Pages : 185 pages
Book Rating : 4.:/5 (89 download)
Download or read book Excited States and Electron Transfer in Solution written by Timothy Daniel Kowalczyk and published by . This book was released on 2012 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our understanding of organic materials for solar energy conversion stands to benefit greatly from accurate, computationally tractable electronic structure methods for excited states. Here we apply two approaches based on density functional theory (DFT) to predict excitation energies and electron transfer parameters in organic chromophores and semiconductors in solution. First, we apply constrained DFT to characterize charge recombination in a photoexcited donor-acceptor dyad and to understand the photophysical behavior of a fluorescent sensor for aqueous zinc. Second, we discover that the delta-self-consistent-field ([Delta]SCF) approach to excited states in DFT offers accuracy comparable to that of the better-established but more indirect linear-response time-dependent DFT approach, and we offer some justification for the similarity. Finally, we investigate a spin-restricted analog of [Delta]SCF known as restricted open-shell Kohn-Sham (ROKS) theory. We resolve a known ambiguity in the formal solution of the ROKS equations for the singlet excited state by presenting a self-consistent implementation of ROKS with respect to the mixing angle between the two open shells. The excited state methods developed and applied in this work contribute to the expanding toolkit of electronic structure theory for challenging problems in the characterization and design of organic materials.
Author : George J. Kavarnos
Publisher : Wiley-VCH
ISBN 13 :
Total Pages : 376 pages
Book Rating : 4.3/5 (91 download)
Download or read book Fundamentals of Photoinduced Electron Transfer written by George J. Kavarnos and published by Wiley-VCH. This book was released on 1993 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Waldermar Adam
Publisher : Elsevier
ISBN 13 : 0323152309
Total Pages : 401 pages
Book Rating : 4.3/5 (231 download)
Download or read book Chemical and Biological Generation of Excited States written by Waldermar Adam and published by Elsevier. This book was released on 2012-12-02 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical and Biological Generation of Excited States discusses major aspects of chemical and biological generation of electronic excitation. This book is organized into 11 chapters that focus on both chemi- and bioenergized processes. This book first discusses some of the fundamental aspects of the description of excited state behavior in condensed media. It then examines the field of gas-phase dioxetane chemiluminescence both by itself and in relation to solution-phase studies. The presented analysis is based on statistical mechanics and supported by a very simple limiting case calculation. Chapter 4 describes the state-of-the-art of how excitation yields are determined experimentally in chemienergized processes. This is followed by a discussion on activation parameters and stability trends, focusing on solution-phase data. Chapters 6 and 7 examine solution-phase chemiluminescence resulting from high-energy electron-transfer reaction, often involving aromatic radical ions, and the mechanism of excitation step. The next chapters cover the generation of electronic excited states in bioluminescence and the evaluation of luminescent oxidation mechanisms using oxygen tracers. The chapters also explain the formation of electronically excited products in dark biological processes and the mechanism of chemiexcitation as it relates to redox metabolism. Specific examples of biological oxygenation reactions yielding luminescence are also presented. Furthermore, this book discusses the concept and applicability of chemiluminigenic probing for the quantification and differentiation of oxygenation activities in mammalian phagocytes. The concluding chapter is devoted to the possible formation of singlet oxygen in various systems and processes that mimic singlet oxygen reactions. The book intends to attract young scientists as well as established research workers to broaden the horizons of this rapidly growing and potentially very important field.
Author : Roger Charles Young
Publisher :
ISBN 13 :
Total Pages : 500 pages
Book Rating : 4.:/5 (342 download)
Download or read book Electron Transfer Reactions of Excited States and Transient High Energy Intermediates Produced by Visible Light written by Roger Charles Young and published by . This book was released on 1977 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Gratzel
Publisher : CRC Press
ISBN 13 : 1351081659
Total Pages : 170 pages
Book Rating : 4.3/5 (51 download)
Download or read book Heterogenous Photochemical Electron Transfer written by Michael Gratzel and published by CRC Press. This book was released on 2018-01-18 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present monograph attempts to unify these diverse and exciting new developments within a common framework. First, the physical principles underlying heterogenous electron-transfer processes are outlined in a concise way and are compared to the homogeneous counterpart. This analysis includes the notion of the Fermi level in liquids and solids as well as the distribution of electronic energy levels in solids and liquids. A comparison is made between the salient kinetic features of homogeneous and heterogeneous electron transfer reactions. This establishes the basis for the subsequent treatment of the transduction of excitation energy and photo-initiated electron transfer in organized molecular assemblies, such as micelles, vesicles and monolayers. Transmembrane redox processes are critically reviewed. Particular attention is given to semiconductor electrodes and particles. This includes a discussion of quantum size effects, the nature of space charge layers as well as surface states and the dynamics of charge carrier-induced redox reactions at the semiconductor solution interface. These processes are of fundamental importance in such diverse fields as photochromism, electrochromic displays, electroreprography and photography, information storage, photocatalysis, photodegradation of paints, and solar energy conversion.
Author : V. Ramamurthy
Publisher : CRC Press
ISBN 13 : 9780824705794
Total Pages : 780 pages
Book Rating : 4.7/5 (57 download)
Download or read book Understanding and Manipulating Excited-State Processes written by V. Ramamurthy and published by CRC Press. This book was released on 2001-08-21 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state-of-the-art review of original research, this book includes discussions of intramolecular photoadditoin of nucleophiles, electrophiles, and radical species to the activated aromatic ring; new methods for regio-, anantio-, and diastereoselective photooxygenations involving singlet oxygen mechanisms; and applications of microreactors for photochemical synthesis of large-ring compounds, photochemical rearrangement, photocycloaddition, and chiral photochemical synthesis. It covers the role of layered inorganic solids in the construction, characterization, and analysis of supramolecular assemblies of metal ions, molecules, metal complexes, and proteins, and more.
Author : Douglas Dalzell Perrin
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (257 download)
Download or read book Dissociation Constants of Organic Bases in Aqueous Solution written by Douglas Dalzell Perrin and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ke-Li Han
Publisher : John Wiley & Sons
ISBN 13 : 1119972922
Total Pages : 1229 pages
Book Rating : 4.1/5 (199 download)
Download or read book Hydrogen Bonding and Transfer in the Excited State written by Ke-Li Han and published by John Wiley & Sons. This book was released on 2011-03-16 with total page 1229 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives an extensive description of the state-of-the-art in research on excited-state hydrogen bonding and hydrogen transfer in recent years. Initial chapters present both the experimental and theoretical investigations on the excited-state hydrogen bonding structures and dynamics of many organic and biological chromophores. Following this, several chapters describe the influences of the excited-state hydrogen bonding on various photophysical processes and photochemical reactions, for example: hydrogen bonding effects on fluorescence emission behaviors and photoisomerization; the role of hydrogen bonding in photosynthetic water splitting; photoinduced electron transfer and solvation dynamics in room temperature ionic liquids; and hydrogen bonding barrier crossing dynamics at bio-mimicking surfaces. Finally, the book examines experimental and theoretical studies on the nature and control of excited-state hydrogen transfer in various systems. Hydrogen Bonding and Transfer in the Excited State is an essential overview of this increasingly important field of study, surveying the entire field over 2 volumes, 40 chapters and 1200 pages. It will find a place on the bookshelves of researchers in photochemistry, photobiology, photophysics, physical chemistry and chemical physics.
Author : J. A. Barltrop
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 420 pages
Book Rating : 4.:/5 (44 download)
Download or read book Excited States in Organic Chemistry written by J. A. Barltrop and published by John Wiley & Sons. This book was released on 1975 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : V. Ramamurthy
Publisher : CRC Press
ISBN 13 : 148229463X
Total Pages : 718 pages
Book Rating : 4.4/5 (822 download)
Download or read book Understanding and Manipulating Excited-State Processes written by V. Ramamurthy and published by CRC Press. This book was released on 2001-08-21 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state-of-the-art review of original research, this book includes discussions of intramolecular photoadditoin of nucleophiles, electrophiles, and radical species to the activated aromatic ring; new methods for regio-, anantio-, and diastereoselective photooxygenations involving singlet oxygen mechanisms; and applications of microreactors for photo
Author : Vincenzo Balzani
Publisher : Wiley-VCH
ISBN 13 : 9783527299126
Total Pages : 864 pages
Book Rating : 4.2/5 (991 download)
Download or read book Electron Transfer in Chemistry, Principles, Theories, Methods, and Techniques written by Vincenzo Balzani and published by Wiley-VCH. This book was released on 2001-05-02 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron transfer is the most important process to take place in natural and artificial chemical systems, playing a fundamental role, for example, in photosynthesis as well as in photography. Electron transfer reactions - oxidations and reductions - are involved in, among others, a variety of energy conversion processes, analytical methods, synthetic strategies, and information processing systems. This five-volume work is the only comprehensive yet up-to-date reference on electron transfer processes. Following a foreword by Nobel prize-winner R. A. Marcus, renowned experts from all over the world provide an interdisciplinary overview of every aspect of electron transfer including theoretical-physicochemical backgrounds, latest analytical techniques to identify, monitor and measure the rate of electron transfer, utilizing electron transfer reactions in organic synthesis and catalysis, electron transfer in the gas phase or in special heterogeneous systems such as zeolites or sensitized electrodes. Other central issues are the study of biological systems and the biomimetic electron transfer processes in artificial supramolecular systems. Finally, a complete volume is dedicated to the application of electron transfer in molecular-level electronics, imaging processes and energy conversion. Each chapter is complemented by numerous tables, formulae and illustrations providing an indispensable wealth of information. All references are cross-indexed throughout the work for easy access to this highly complex topic. Whether for quickly looking-up a keyword or as a thorough introduction to a special aspect, this is an essential handbook for everyone working in the field, from experts to postgraduates, from synthetic chemists, physicochemists or biochemists to research groups in material sciences.
Author : Mark David Newsham
Publisher :
ISBN 13 :
Total Pages : 540 pages
Book Rating : 4.3/5 (129 download)
Download or read book Excited-state Properties of Transition-metal Complexes in Solution and the Solid State written by Mark David Newsham and published by . This book was released on 1988 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joshua Jortner
Publisher : John Wiley & Sons
ISBN 13 : 0470142197
Total Pages : 759 pages
Book Rating : 4.4/5 (71 download)
Download or read book Electron Transfer written by Joshua Jortner and published by John Wiley & Sons. This book was released on 2009-09-09 with total page 759 pages. Available in PDF, EPUB and Kindle. Book excerpt: an integrated approach to electron transfer phenomena This two-part stand-alone volume in the prestigious Advances in Chemical Physics series provides the most comprehensive overview of electron transfer science today. It draws on cutting-edge research from diverse areas of chemistry, physics, and biology-covering the most recent developments in the field, and pointing to important future trends. This second volume offers the following sections: * Solvent control, including ultrafast solvation dynamics and related topics * Ultrafast electron transfer and coherence effects * Molecular electronics * Electron transfer and exciplex chemistry * Biomolecules-from electron transfer tubes to kinetics in a DNA environment Part One addresses the historical perspective, electron transfer phenomena in isolated molecules and clusters, general theory, and electron transfer kinetics in bridged compounds. Electron transfer science has seen tremendous progress in recent years. Technological innovations, most notably the advent of femtosecond lasers, now permit the real-time investigation of intramolecular and intermolecular electron transfer processes on a time scale of nuclear motion. New scientific information abounds, illuminating the processes of energy acquisition, storage, and disposal in large molecules, clusters, condensed phase, and biophysical systems. Electron Transfer: From Isolated Molecules to Biomolecules is the first book devoted to the exciting work being done in nonradiative electron transfer dynamics today. This two-part edited volume emphasizes the interdisciplinary nature of the field, bringing together the contributions of pioneers in chemistry, physics, and biology. Both theoretical and experimental topics are featured. The authors describe modern approaches to the exploration of different systems, including supersonic beam techniques, femtosecond laser spectroscopy, chemical syntheses, and methods in genetic and chemical engineering. They examine applications in such areas as supersonic jets, solvents, electrodes, semi- conductors, respiratory and enzymatic protein systems, photosynthesis, and more. They also relate electron transfer and radiationless transitions theory to pertinent physical phenomena, and provide a conceptual framework for the different processes. Complete with over two hundred illustrations, Part Two opens with solvent control issues, including electron transfer reactions and ultrafast solvation dynamics. Other topics include ultrafast electron transfer and coherence effects, molecular electronics, and electron transfer in exciplex chemistry. This volume concludes with a section on biomolecules-from electron transfer tubes to experimental electron transfer and transport in DNA. Timely, comprehensive, and authoritative, Electron Transfer: From Isolated Molecules to Biomolecules is an essential resource for physical chemists, molecular physicists, and researchers working in nonradiative dynamics today.
Author : Vincenzo Balzani
Publisher : John Wiley & Sons
ISBN 13 : 3527334793
Total Pages : 516 pages
Book Rating : 4.5/5 (273 download)
Download or read book Photochemistry and Photophysics written by Vincenzo Balzani and published by John Wiley & Sons. This book was released on 2014-06-09 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ein Lehrbuch eines exzellenten Autorenteams mit wissenschaftlicher Erfahrung und der Kompetenz im Schreiben didaktischer Texte zu allen Facetten der Photochemie und Photophysik: Grundlagen sowie ausgewählte Beispielen moderner Anwendungen und aus der heutigen Forschung.
Author : N. Mataga
Publisher : Elsevier
ISBN 13 : 0444598847
Total Pages : 587 pages
Book Rating : 4.4/5 (445 download)
Download or read book Dynamics and Mechanisms of Photoinduced Electron Transfer and Related Phenomena written by N. Mataga and published by Elsevier. This book was released on 2012-12-02 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains papers which examine fundamental aspects of photoinduced electron transfer reactions, an area in which a number of breakthroughs have recently occurred. The book is divided into four parts. Parts I and II are mainly concerned with the fundamental aspects of the inter- and intra-molecular charge transfer, electron transfer and related phenomena such as solvent effects, solvation dynamics, energy gap dependences and radical pair dynamics. Part III is concerned with electron transfer and energy transfer phenomena in polymers, films, crystals, and other confined systems. In Part IV, the mechanisms of the energy and electron transfer in biological photosynthetic systems, proteins and reaction center systems are discussed.
Author :
Publisher :
ISBN 13 :
Total Pages : 622 pages
Book Rating : 4.0/5 ( download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
