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Hydrogen Bonding and Transfer in the Excited State

Hydrogen Bonding and Transfer in the Excited State Author Ke-Li Han
ISBN-10 1119972922
Release 2011-03-16
Pages 970
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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.



Hydrogen bonding and transfer in the excited state 1

Hydrogen bonding and transfer in the excited state  1 Author Ke-Li Han
ISBN-10 OCLC:698548291
Release 2011
Pages 461
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This publication gives an extensive description of the state-of-the-art in research on excited-state hydrogen bonding and hydrogen transfer. The book presents both the experimental and theoretical investigations on the excited-state hydrogen bonding structures and dynamics of many organic and biological chromophores.



Hydrogen Bonding and Transfer in the Excited State

Hydrogen Bonding and Transfer in the Excited State Author Ke-Li Han
ISBN-10 0470666773
Release 2010-12-01
Pages 970
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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.



Ultrafast Hydrogen Bonding Dynamics and Proton Transfer Processes in the Condensed Phase

Ultrafast Hydrogen Bonding Dynamics and Proton Transfer Processes in the Condensed Phase Author Thomas Elsässer
ISBN-10 9789401700597
Release 2013-03-14
Pages 186
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Hydrogen bonds represent type of molecular interaction that determines the structure and function of a large variety of molecular systems. The elementary dynamics of hydrogen bonds and related proton transfer reactions, both occurring in the ultra fast time domain between 10-14 and 10-11s, form a research topic of high current interest. In this book addressing scientists and graduate students in physics, chemistry and biology, the ultra fast dynamics of hydrogen bonds and proton transfer in the condensed phase are reviewed by leading scientists, documenting the state of the art in this exciting field from the viewpoint of theory and experiment. The nonequilibrium behavior of hydrogen-bonded liquids and intramolecular hydrogen bonds as well as photo induced hydrogen and proton transfer are covered in 7 chapters, making reference to the most recent literature.



Isotope Effects In Chemistry and Biology

Isotope Effects In Chemistry and Biology Author Amnon Kohen
ISBN-10 1420028022
Release 2005-11-01
Pages 1096
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The field of isotope effects has expanded exponentially in the last decade, and researchers are finding isotopes increasingly useful in their studies. Bringing literature on the subject up to date, Isotope Effects in Chemistry and Biology covers current principles, methods, and a broad range of applications of isotope effects in the physical, biological, and environmental sciences. The authors first explain how kinetic, equilibrium, and anharmonic isotope effects are used to measure the ratio of reaction rates, the ratio between isotopes in thermodynamic equilibrium, and the geometric changes between molecules. The volume describes basic theories, including gas phase, simple condensed phase, small molecule studies, and applications of the Bigeleisen-Mayer theory before covering how isotopes affect molecular geometries, chemical bond breaking, formation and chemical dynamics, and hydrogen transfer. It explores novel, mass-independent isotope effects and problems encountered in hydrogen transfer, tunneling, and exchange. Authors also discuss isotope effects in organic and organometallic reactions and complex enzyme reactions and a unique chapter explores water isotope effects under pressure. Written by internationally recognized researchers from 13 countries, some chapters summarize the perspective of a well-established subject while others review recent findings and on-going research that occasionally present controversial viewpoints using clear scientific arguments and discussion presented by all relevant authors. Isotope Effects in Chemistry and Biology brings together a wide scope of different perspectives and practical developments and applications into a comprehensive reference of isotope effects that reflect the most current state of the art.



The Nature of the Hydrogen Bond

The Nature of the Hydrogen Bond Author Gastone Gilli
ISBN-10 9780199558964
Release 2009-06-25
Pages 317
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This book defines, for the first time, the rules for predicting H-bond energies and geometries from the properties of the interacting molecules. This new knowledge is used to investigate the molecular mechanisms in systems relevant to chemistry, biochemistry, pharmacology, crystallography, and material sciences.



Principles of Fluorescence Spectroscopy

Principles of Fluorescence Spectroscopy Author Joseph R. Lakowicz
ISBN-10 9781461576587
Release 2013-11-11
Pages 496
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Fluorescence methods are being used increasingly in biochemical, medical, and chemical research. This is because of the inherent sensitivity of this technique. and the favorable time scale of the phenomenon of fluorescence. 8 Fluorescence emission occurs about 10- sec (10 nsec) after light absorp tion. During this period of time a wide range of molecular processes can occur, and these can effect the spectral characteristics of the fluorescent compound. This combination of sensitivity and a favorable time scale allows fluorescence methods to be generally useful for studies of proteins and membranes and their interactions with other macromolecules. This book describes the fundamental aspects of fluorescence. and the biochemical applications of this methodology. Each chapter starts with the -theoreticalbasis of each phenomenon of fluorescence, followed by examples which illustrate the use of the phenomenon in the study of biochemical problems. The book contains numerous figures. It is felt that such graphical presentations contribute to pleasurable reading and increased understand ing. Separate chapters are devoted to fluorescence polarization, lifetimes, quenching, energy transfer, solvent effects, and excited state reactions. To enhance the usefulness of this work as a textbook, problems are included which illustrate the concepts described in each chapter. Furthermore, a separate chapter is devoted to the instrumentation used in fluorescence spectroscopy. This chapter will be especially valuable for those perform ing or contemplating fluorescence measurements. Such measurements are easily compromised by failure to consider a number of simple principles.



Encyclopedia of Interfacial Chemistry

Encyclopedia of Interfacial Chemistry Author
ISBN-10 9780128098943
Release 2018-03-29
Pages 5560
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Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry summarizes current, fundamental knowledge of interfacial chemistry, bringing readers the latest developments. As the chemical and physical properties and processes at solid and liquid interfaces are the scientific basis of so many technologies which enhance our lives and create new opportunities, its important to highlight how these technologies enable the design and optimization of functional materials for heterogeneous and electro-catalysts in food production, pollution control, energy conversion and storage, medical applications requiring biocompatibility, drug delivery, and more. This book provides an interdisciplinary view that lies at the intersection of these three related fields. Presents fundamental knowledge of interfacial chemistry, surface science and electrochemistry and provides cutting-edge research from academics and practitioners across various fields and global regions



Intramolecular Charge Transfer

Intramolecular Charge Transfer Author Ramprasad Misra
ISBN-10 9783527801923
Release 2018-03-07
Pages 288
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Bridging the gap between the multitude of advanced research articles and the knowledge newcomers to the field are looking for, this is a timely and comprehensive monograph covering the interdisciplinary topic of intramolecular charge transfer (ICT). The book not only covers the fundamentals and physico-chemical background of the ICT process, but also places a special emphasis on the latest experimental and theoretical studies that have been undertaken to understand this process and discusses key technological applications. After outlining the discovery of ICT molecules, the authors go on to discuss several important substance classes. They present the latest techniques for studying the underlying processes and show the interplay between charge transfer and the surrounding medium. Examples taken from nonlinear optics, viscosity and polarity sensors, and organic electronics testify to the vast range of applications. The result is a unique information source for experimentalists as well as theoreticians, from postgraduate students to researchers.



Intermolecular Forces

Intermolecular Forces Author Pierre L. Huyskens
ISBN-10 9783642762604
Release 2012-12-06
Pages 490
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The study of intermolecular forces began over one hundred years ago in 1873 with the famous thesis of van der Waals. In recent decades, knowledge of this field has expanded due to intensive research into both its theoretical and the experimental aspects. This is particularly true for the type of very strong cohesive force stressed in 1920 by Latimer and Rodebush: the hydrogen bond, a phenomenon already outlined in 1912 by Moore and Winemill. Hydrogen bonds exert a profound influence on most of the physical and chemical properties of the materials in which they are formed. Not only do they govern viscosity and electrical conductivity, they also intervene in the chemical reaction path which determines the kinetics of chemical processes. The properties of chemical substances depend to a large extent on intermolecular forces. In spite of this fundamental fact, too little attention is given to these properties both in research and in university teaching. For instance, in the field of pharmaceutical research, about 13000 compounds need to be studied in order to find a single new product that can be successfully marketed. The recognition of the need to optimize industrial research efficiency has led to a growing interest in promoting the study of inter molecular forces. Rising salary costs in industry have encou raged an interest in theoretical ideas which will lead to tailor made materials.



Time resolved Vibrational Spectroscopy

Time resolved Vibrational Spectroscopy Author George H. Atkinson
ISBN-10 2881241913
Release 1987-01-01
Pages 417
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First published in 1987. Routledge is an imprint of Taylor & Francis, an informa company.



Molecular Fluorescence

Molecular Fluorescence Author Bernard Valeur
ISBN-10 9783527650026
Release 2013-03-27
Pages 500
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This second edition of the well-established bestseller is completely updated and revised with approximately 30 % additional material, including two new chapters on applications, which has seen the most significant developments. The comprehensive overview written at an introductory level covers fundamental aspects, principles of instrumentation and practical applications, while providing many valuable tips. For photochemists and photophysicists, physical chemists, molecular physicists, biophysicists, biochemists and biologists, lecturers and students of chemistry, physics, and biology.



Conformational Analysis of Molecules in Excited States

Conformational Analysis of Molecules in Excited States Author Jacek Waluk
ISBN-10 0471297070
Release 2000-06-13
Pages 376
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A unique look at some of the hottest topics in photophysics and photochemistry today The study of molecules in excited states has exploded over the past decade, providing new insights into conformational changes in organic molecules and opening up research opportunities for scientists and professionals in chemistry, physics, biology, medicine, and materials engineering. Using conformational analysis as a unifying concept, this important new work provides readers with a cohesive and cutting-edge overview of this fascinating and challenging field. From conformational changes accompanying photoinduced electron transfer to elementary photophysical and photochemical processes in living systems, the most representative and challenging topics are carefully gleaned from the vast literature, highlighting major conceptual problems along with the relevant experimental techniques. Authoritative, detailed contributions from both experimentalists and theoreticians include coverage of: * Conformational changes in intramolecular excited state electron transfer * Conformational aspects of excited state proton transfer * The novel topic of solute-solvent friction in chemical reactions * Mechanisms and structural aspects of exciplex formations * Conformational aspects of organic photochemistry * Calculations of excited state conformational properties



Femtochemistry and Femtobiology

Femtochemistry and Femtobiology Author Abderrazzak Douhal
ISBN-10 9812777989
Release 2002
Pages 852
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This book contains important contributions from top international scientists on the-state-of-the-art of femtochemistry and femtobiology at the beginning of the new millennium. It consists of reviews and papers on ultrafast dynamics in molecular science.The coverage of topics highlights several important features of molecular science from the viewpoint of structure (space domain) and dynamics (time domain). First of all, the book presents the latest developments, such as experimental techniques for understanding ultrafast processes in gas, condensed and complex systems, including biological molecules, surfaces and nanostructures. At the same time it stresses the different ways to control the rates and pathways of reactive events in chemistry and biology. Particular emphasis is given to biological processes as an area where femtodynamics is becoming very useful for resolving the structural dynamics from techniques such as electron diffraction, and X-ray and IR spectroscopy. Finally, the latest developments in quantum control (in both theory and experiment) and the experimental pulse-shaping techniques are described.



Two Dimensional Optical Spectroscopy

Two Dimensional Optical Spectroscopy Author Minhaeng Cho
ISBN-10 1420084305
Release 2009-06-16
Pages 385
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Two-Dimensional Optical Spectroscopy discusses the principles and applications of newly emerging two-dimensional vibrational and optical spectroscopy techniques. It provides a detailed account of basic theory required for an understanding of two-dimensional vibrational and electronic spectroscopy. It also bridges the gap between the formal development of nonlinear optical spectroscopy and the application of the theory to explain experimental results. Focusing on time-domain spectroscopy, the book presents detailed discussions on the underlying physics and interpretation methods of a variety of two-dimensional optical spectroscopic methods. It illustrates how novel diagrammatic techniques are useful in graphically describing the associated nonlinear optical transition pathways and involved population or coherence evolutions. The author also explains the basics of quantum dynamics and time-dependent perturbation theories that are required in describing nonlinear optical processes. From the development of the theory to novel applications, this book covers a gamut of topics in this field, including perturbation theory, coherent Raman scattering, pump-probe spectroscopy, photon echo spectroscopy, IR-visible four-wave mixing, and linear and nonlinear optical activity spectroscopy. It shows how to apply the recently developed tools of vibrational and electronic spectroscopy in two dimensions.



Proton coupled Electron Transfer

Proton coupled Electron Transfer Author Sebastião J. Formosinho
ISBN-10 9781849731416
Release 2011-12
Pages 157
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Proton-coupled electron transfer (PCET) is emerging as an important new class of reactions and, over the past decade, great strides have been made in our understanding of them. PCET reactions are studied in many branches of chemistry and are omnipresent in biological processes. This book covers recent developments from both the theoretical and experimental points of view. It concentrates on the importance of PCET in biological systems and for bioenergetic conversion. The oxidation of water in Photosystem II to produce oxygen, and the reduction of protons to hydrogen by hydrogenase, for energy storage gets particular emphasis. Chemical reactivity is currently explained in terms of several scientific principles. One of them is the bond-breaking-bond-forming process and is conceptually based on potential energy surfaces. Another incorporates the role of Franck-Condon factors resulting from the overlap of vibrational wavefunctions. A third, the so-called solvent reorganization, involves solvent configuration around a charged species. PCET brings together such concepts and links them to quantum mechanical tunnelling of the electron particle. This book uses personal accounts of experimental examples to provide additional insight on this important topic. It starts by presenting a general overview of the main theoretical approaches and experimental applications. The chapters then go on to cover topics including: the application of the Marcus Cross Relation; the solvation of ionic systems; experimental approaches in biological redox systems; metal ion-coupled electron transfer, and electrochemical concerted proton-electron transfers.



Water in Biological and Chemical Processes

Water in Biological and Chemical Processes Author Biman Bagchi
ISBN-10 9781107037298
Release 2013-11-14
Pages 374
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A unified overview of the dynamical properties of water and its unique and diverse role in biological and chemical processes.