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Hydrogen Bonding and Transfer in the Excited State

Hydrogen Bonding and Transfer in the Excited State
  • Author : Ke-Li Han,Guang-Jiu Zhao
  • Publisher :Unknown
  • Release Date :2011-03-16
  • Total pages :970
  • ISBN : 1119972922
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Summary : 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 Research In Photochemistry, Photobiology, And Optoelectronic Materials

Hydrogen-bonding Research In Photochemistry, Photobiology, And Optoelectronic Materials
  • Author : Han Keli,Zhao Guangjiu
  • Publisher :Unknown
  • Release Date :2019-03-13
  • Total pages :456
  • ISBN : 9781786346094
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Summary : As one of the typical intermolecular interactions, hydrogen-bonding plays a significant role in molecular structure and function. When the hydrogen bond research system is connected with the photon, the hydrogen-bonding effect turns to an excited-state one influencing photochemistry, photobiology, and photophysics. Thus, the hydrogen bond in an excited state is a key topic for understanding the excited-state properties, especially for optoelectronic or luminescent materials.The approaches presented in this book include quantum chemical calculation, molecular dynamics simulation and ultrafast spectroscopy, which are strong tools to investigate the hydrogen bond. Unlike other existing titles, this book combines theoretical calculations and experiments to explore the nature of excited-state hydrogen bonds. By using these methods, more details and faster processes involved in excited-state dynamics of hydrogen bond are explored.This highly interdisciplinary book provides an overview of leading hydrogen bond research. It is essential reading for faculties and students in researching photochemistry, photobiology and photophysics, as well as novel optoelectronic materials, fluorescence probes and photocatalysts. It will also guide research beginners to getting a quick start within this field.

The Nature of the Hydrogen Bond

The Nature of the Hydrogen Bond
  • Author : Gastone Gilli,Paola Gilli
  • Publisher :Unknown
  • Release Date :2009-06-25
  • Total pages :317
  • ISBN : 9780199558964
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Summary : 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.

Gases: Advances in Research and Application: 2011 Edition

Gases: Advances in Research and Application: 2011 Edition
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2012-01-09
  • Total pages :2280
  • ISBN : 9781464920639
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Summary : Gases: Advances in Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Gases. The editors have built Gases: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Gases in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Gases: Advances in Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Jet Spectroscopy and Molecular Dynamics

Jet Spectroscopy and Molecular Dynamics
  • Author : J.M. Hollas,D. Phillips
  • Publisher :Unknown
  • Release Date :1994-12-31
  • Total pages :446
  • ISBN : 0751400351
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Summary : Recent years have seen an explosion in the volume of work carried out using supersonic jets of molecules following the discovery that the technique could provide information on structure and dynamics of a very high quality otherwise impossible to obtain. Written and edited by a first class team of authors, acknowledged world leaders in their subjects, this book describes applications in detail along with analysis of data recorded and background theory. Physical chemists and chemical physicists will find this unique book an essential concentrated source of information and reference.

Conformational Analysis of Molecules in Excited States

Conformational Analysis of Molecules in Excited States
  • Author : Jacek Waluk
  • Publisher :Unknown
  • Release Date :2000-06-13
  • Total pages :376
  • ISBN : 0471297070
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Summary : 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

Non-covalent Interactions

Non-covalent Interactions
  • Author : Pavel Hobza,Klaus Müller-Dethlefs
  • Publisher :Unknown
  • Release Date :2010
  • Total pages :225
  • ISBN : 9781847558534
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Summary : Co-authored by an experimentalist (Klaus M ller-Dethlefs ) and theoretician (Pavel Hobza), the aim of this book is to provide a general introduction into the science behind non-covalent interactions and molecular complexes using some important experimental and theoretical methods and approaches."

Principles of Fluorescence Spectroscopy

Principles of Fluorescence Spectroscopy
  • Author : Joseph R. Lakowicz
  • Publisher :Unknown
  • Release Date :2013-11-11
  • Total pages :496
  • ISBN : 9781461576587
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Summary : 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.

Physical Methods in Heterocyclic Chemistry

Physical Methods in Heterocyclic Chemistry
  • Author : A Katritzky
  • Publisher :Unknown
  • Release Date :2012-12-02
  • Total pages :318
  • ISBN : 9780323156141
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Summary : Physical Methods in Heterocyclic Chemistry, Volume VI discusses several topics including bond energies, electron-spin resonance, microwave spectroscopy, and photoelectron spectroscopy. This book explores the thermochemical applications to heterocyclic chemistry. Comprised of five chapters, this volume starts with an overview of the technique of photoelectron spectroscopy. This text then illustrates the various potentialities of photoelectron spectroscopy by discussing four examples taken from the field of heterocyclic compounds. Other chapters determine the magnitudes as well as the lines of action of electric dipole moments in the molecular framework. This book discusses as well the emission of light by individual molecules in solution, particularly heterocyclic molecules, which are electronically excited as a result of the absorption of visible or ultraviolet light. The final chapter deals with the aspects of heats of combustion, heats of hydrogenation, heats of formation, and bond energies. Heterocyclic chemists, chemists, biochemists, molecular biologists, and researchers will find this book extremely useful.

Photoselective Chemistry

Photoselective Chemistry
  • Author : Joshua Jortner
  • Publisher :Unknown
  • Release Date :2009-09-08
  • Total pages :718
  • ISBN : 9780470143124
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Summary : The Advances in Chemical Physics series provides the chemical physics and physical chemistry fields with a forum for critical, authoritative evaluations of advances in every area of the discipline. Filled with cutting-edge research reported in a cohesive manner not found elsewhere in the literature, each volume of the Advances in Chemical Physics series serves as the perfect supplement to any advanced graduate class devoted to the study of chemical physics.

Photochemistry

Photochemistry
  • Author : Angelo Albini,Ya-Jun Liu,Elisa Fasani,Marcella Bonchio
  • Publisher :Unknown
  • Release Date :2012-10-05
  • Total pages :322
  • ISBN : 9781849734370
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Summary : Compiled by teams of leading authorities this Specialist Periodical Report on Photochemistry aims to provide an annual review of photo-induced processes.

High Dilution Effects: Physical and Biochemical Basis

High Dilution Effects: Physical and Biochemical Basis
  • Author : Nirmal C. Sukul,Anirban Sukul
  • Publisher :Unknown
  • Release Date :2004-06-29
  • Total pages :130
  • ISBN : 1402021550
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Summary : Since the subject of high dilution effects is still a subject for debate, this volume provides evidence in support of effects from control clinical studies, clinical records from veteran physicians, controlled experiments on animals and plants, and in vitro tests without any organisms (Chapter II). An overview of the methods for preparing drugs at ultra high dilution is also provided as well as the basic principles of homeopathy, which has been alleviating human suffering through the use of these drugs for several hundred years (Chapter I). Chapter III provides physical basis of high dilutions as evidence from the NMR, IR, UV and fluorescence spectra of those drugs. Since water is used as the diluents media, the structure and dynamics of water polymers in relation to high dilution are discussed in order to facilitate easy comprehension of this physical aspect, the basic principles of spectroscopy are also described. Chapter IV focuses on the mechanism of action of potentized drugs in the living system, discussing the structure of the cell, the plasma membrane, the integral proteins on the membrane, the interaction between these proteins and high dilutions and the manifestations of the therapeutic effects of high dilutions. Some aspects, peculiar to homeopathy, such as the chief miasm psora, and the literalities and time modalities of symptoms and drug action are interpreted from a scientific perspective. Chapter IV ends with a brief discussion on water structures and the origin of life to show the natural evolution of high dilution effects. The book not only helps in understanding the physical basis of high dilutions and their mechanism of action in organisms but provides many new avenues of investigation into this interdisciplinary field of science.

Photosensitized Reactions

Photosensitized Reactions
  • Author : Masao Koizumi
  • Publisher :Unknown
  • Release Date :1978
  • Total pages :394
  • ISBN : STANFORD:36105031933448
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Summary :

Kinetics and Dynamics

Kinetics and Dynamics
  • Author : Piotr Paneth,Agnieszka Dybala-Defratyka
  • Publisher :Unknown
  • Release Date :2010-08-03
  • Total pages :530
  • ISBN : 9048130344
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Summary : "Kinetics and Dynamics" on molecular modeling of dynamic processes opens with an introductory overview before discussing approaches to reactivity of small systems in the gas phase. Then it examines studies of systems of increasing complexity up to the dynamics of DNA. This title has interdisciplinary character presenting wherever possible an interplay between the theory and the experiment. It provides basic information as well as the details of theory and examples of its application to experimentalists and theoreticians interested in modeling of dynamic processes in chemical and biochemical systems. All contributing authors are renowned experts in their fields and topics covered in this volume represent the forefront of today’s science.

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 Elsaesser,H.J. Becker
  • Publisher :Unknown
  • Release Date :2013-03-14
  • Total pages :186
  • ISBN : 9789401700597
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Summary : 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.

Excited State Proton Transfer

Excited State Proton Transfer
  • Author : Nahid Shabestary
  • Publisher :Unknown
  • Release Date :1982
  • Total pages :430
  • ISBN : MSU:31293031460342
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Summary :

Ultrashort Laser Pulses in Biology and Medicine

Ultrashort Laser Pulses in Biology and Medicine
  • Author : Markus Braun,Peter Gilch,Wolfgang Zinth
  • Publisher :Unknown
  • Release Date :2008-03-15
  • Total pages :320
  • ISBN : 3540735666
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Summary : Learn about the many biological and medical applications of ultrashort laser pulses. The authors highlight and explain how the briefness of these laser pulses permits the tracing of even the fastest processes in photo-active bio-systems. They also present a variety of applications that rely on the high peak intensity of ultrashort laser pulses. Easy-to-follow examples cover non-linear imaging techniques, optical tomography, and laser surgery.

Photochemistry

Photochemistry
  • Author : A. Gilbert,Norman S. Allen
  • Publisher :Unknown
  • Release Date :1999
  • Total pages :440
  • ISBN : 9780854044207
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Summary : Compiled by teams of leading authorities this Specialist Periodical Report on Photochemistry aims to provide an annual review of photo-induced processes.

Ultrafast Excited State Proton Transfer in the Condensed Phase and Nanoconfinement

Ultrafast Excited State Proton Transfer in the Condensed Phase and Nanoconfinement
  • Author : David Ben Spry
  • Publisher :Unknown
  • Release Date :2009
  • Total pages :508
  • ISBN : STANFORD:36105210265281
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Summary :

Proceedings of the International Conference on Lasers

Proceedings of the International Conference on Lasers
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1984
  • Total pages :229
  • ISBN : UIUC:30112008101922
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Summary :

Flavins

Flavins
  • Author : Eduardo Silva,Ana M. Edwards
  • Publisher :Unknown
  • Release Date :2006-01-01
  • Total pages :328
  • ISBN : 9780854043316
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Summary : Flavins and flavoproteins are a widely investigated and highly versatile group of compounds. Participation of these compounds in photochemistry and photobiology processes are of particular importance in the fields of biology, chemistry and medicine. Written by leading experts in the field each section of the book includes a historical overview of the subject, state of the art developments and future perspectives. Flavins: Photochemistry and Photobiology begins with the properties and applications of flavins, including their photochemistry in aqueous and organic solutions. Subsequent sections discuss riboflavin as a visible light sensitizer in the photo degradation of drugs, antiviral and antibacterial effects, the role of flavins in light induced toxicity and blue light initiated DNA repair by photolyase. Finally there are sections on the flavin based photoreceptors in plants, bacteria and eukaryotic photosynthetic flagelettes. This book brings together leading experts with a unique interdisciplinary emphasis, to provide an authoritative resource on flavins and their role in photochemistry and photobiology.