Hydrogen Bonding And Transfer In The Excited State

Author : Ke-Li Han,Guang-Jiu Zhao
Publisher : John Wiley & Sons
Page : 1229 pages
File Size : 45,5 Mb
Release : 2011-03-16
Category : Science
ISBN : 9781119972921

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Hydrogen Bonding and Transfer in the Excited State by Ke-Li Han,Guang-Jiu Zhao Pdf

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 : Thomas Elsaesser,H.J. Becker
Publisher : Springer Science & Business Media
Page : 193 pages
File Size : 48,8 Mb
Release : 2013-03-14
Category : Science
ISBN : 9789401700597

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Ultrafast Hydrogen Bonding Dynamics and Proton Transfer Processes in the Condensed Phase by Thomas Elsaesser,H.J. Becker Pdf

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.

Author : Han Keli,Zhao Guangjiu
Publisher : World Scientific
Page : 456 pages
File Size : 40,5 Mb
Release : 2019-03-13
Category : Science
ISBN : 9781786346094

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Hydrogen-bonding Research In Photochemistry, Photobiology, And Optoelectronic Materials by Han Keli,Zhao Guangjiu Pdf

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.

Author : T. Bountis
Publisher : Springer
Page : 365 pages
File Size : 42,8 Mb
Release : 2012-10-26
Category : Science
ISBN : 1461365244

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Proton Transfer in Hydrogen-Bonded Systems by T. Bountis Pdf

Charge transport through the transfer of protons between molecules has long been recognized as a fundamental process, which plays an important role in many chemical reactions. In particular, proton transfer through Hydrogen (H-) bonds has been identified as the main mechanism, via which many bio logical functions are performed and many properties of such basic substances as proteins and ice can be understood. In this volume, several of these important aspects of the H-bond are rep resented. As the division in different sections already indicates, present day research in proton teansfer in biochemistry, biology, and the physics of water and ice remains highly active and very exciting. Nearly a decade ago, a novel approach to the study of collective proton motion in H-bonded systems was proposed, in which this phenomenon was explained by the propagation of certain coherent structures called solitons. In the years that followed, the approach ofsoliton dynamics was further extended and developed by many researchers around the world, into a legitimate and useful method for the analysis of proton transfer in H-bonded systems. Dr. Stephanos Pnevmatikos, the original Director of this ARW, was one of the pioneers in the application ofsoliton ideas to the study ofcharge transport through H-bonds. Having used similar concepts himself in his research on 2D lattices) he was convinced energy transfer through molecular chains (and that solitons can play an important role in enhancing our understanding of protonic conductivity.

Author : Slawomir Grabowski
Publisher : Springer Science & Business Media
Page : 536 pages
File Size : 42,5 Mb
Release : 2006-10-07
Category : Science
ISBN : 9781402048531

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Hydrogen Bonding - New Insights by Slawomir Grabowski Pdf

This book uses examples from experimental studies to illustrate theoretical investigations, allowing greater understanding of hydrogen bonding phenomena. The most important topics in recent studies are covered. This volume is an invaluable resource that will be of particular interest to physical and theoretical chemists, spectroscopists, crystallographers and those involved with chemical physics.

Author : Alan Lee Huston
Publisher : Unknown
Page : 602 pages
File Size : 46,9 Mb
Release : 1983
Category : Aromatic compounds
ISBN : UCR:31210004380083

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Mechanism and Kinetics of Excited-state Relaxation in Internally Hydrogen-bonded Aromatic Molecules by Alan Lee Huston Pdf

Author : Ramprasad Misra,Shankar P. Bhattacharyya
Publisher : John Wiley & Sons
Page : 256 pages
File Size : 43,9 Mb
Release : 2018-02-27
Category : Science
ISBN : 9783527801947

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Intramolecular Charge Transfer by Ramprasad Misra,Shankar P. Bhattacharyya Pdf

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.

Author : Marek J. Wójcik,Yukihiro Ozaki
Publisher : John Wiley & Sons
Page : 548 pages
File Size : 46,8 Mb
Release : 2022-12-13
Category : Science
ISBN : 9783527834907

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Spectroscopy and Computation of Hydrogen-Bonded Systems by Marek J. Wójcik,Yukihiro Ozaki Pdf

Spectroscopy and Computation of Hydrogen-Bonded Systems Comprehensive spectroscopic view of the state-of the-art in theoretical and experimental hydrogen bonding research Spectroscopy and Computation of Hydrogen-Bonded Systems includes diverse research efforts spanning the frontiers of hydrogen bonding as revealed through state-of-the-art spectroscopic and computational methods, covering a broad range of experimental and theoretical methodologies used to investigate and understand hydrogen bonding. The work explores the key quantitative relationships between fundamental vibrational frequencies and hydrogen-bond length/strength and provides an extensive reference for the advancement of scientific knowledge on hydrogen-bonded systems. Theoretical models of vibrational landscapes in hydrogen-bonded systems, as well as kindred studies designed to interpret intricate spectral features in gaseous complexes, liquids, crystals, ices, polymers, and nanocomposites, serve to elucidate the provenance of spectroscopic findings. Results of experimental and theoretical studies on multidimensional proton transfer are also presented. Edited by two highly qualified researchers in the field, sample topics covered in Spectroscopy and Computation of Hydrogen-Bonded Systems include: Quantum-mechanical treatments of tunneling-mediated pathways and molecular-dynamics simulations of structure and dynamics in hydrogen-bonded systems Mechanisms of multiple proton-transfer pathways in hydrogen-bonded clusters and modern spectroscopic tools with synergistic quantum-chemical analyses Mechanistic investigations of deuterium kinetic isotope effects, ab initio path integral methods, and molecular-dynamics simulations Key relationships that exist between fundamental vibrational frequencies and hydrogen-bond length/strength Analogous spectroscopic and semi-empirical computational techniques examining larger hydrogen-bonded systems Reflecting the polymorphic nature of hydrogen bonding and bringing together the latest experimental and computational work in the field, Spectroscopy and Computation of Hydrogen-Bonded Systems is an essential resource for chemists and other scientists involved in projects or research that intersects with the topics covered within.

Author : Dr. Rashmi Pant
Publisher : Ashok Yakkaldevi
Page : 221 pages
File Size : 49,7 Mb
Release : 2021-08-26
Category : Art
ISBN : 9781257912582

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CONTEMPORARY ISSUES OF YOUTH by Dr. Rashmi Pant Pdf

As a developing country, India stands at advantage than other countries in terms of youth Population. Youth is not only the backbone of a nation, but they also determine its future. Because young people are innovative, creative, passionate and skilled, they are instrumental in creating a meaningful change nationwide and globally. This enthusiasm, vibrancy and skills when channelled properly can promise us and our generation a secure and progressive future. It is both an asset and challenging on being a country with highest number of youth. With emerging advancement and development, multiple challenges continue to occur. This paper attempts to explore the social and psychological challenges and the causes behind them that the modern youth of our country faces. It is very important to address these issues and to work on ways to empower the younger generation since they shoulder a plethora of responsibilities.

Author : Edward C. Lim
Publisher : Elsevier
Page : 414 pages
File Size : 40,9 Mb
Release : 2013-10-22
Category : Science
ISBN : 9781483275642

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Excited States by Edward C. Lim Pdf

Excited States, Volume 2 is a collection of papers that deals with molecules in the excited states. The book describes the geometries of molecules in the excited electronic states. One paper describes the geometries of a diatomic molecule and of polyatomic molecules; it also discusses the determination of the many excited state geometries of molecules with two, three, or four atoms by techniques similar to diatomic spectroscopy. Another paper introduces an ordered theory related to excitons in pure and mixed molecular crystals. This paper also presents some experimental data such as those involving pure and neat crystals, very dilute isotopic mixed crystals, and medium dilute isotopic mixed crystals. The book also discusses the dynamics of primary photochemical processes including the classical theory of unimolecular reactions, the quantum theory of molecular reactions, and the theory of "nonchemical" radiationless processes. One paper also reviews the electron donor-acceptor complexes in their excited states. This book is suitable for nuclear physicists and researchers whose work involves molecular chemistry and solid state physics.

Author : Jacek Waluk
Publisher : John Wiley & Sons
Page : 400 pages
File Size : 50,8 Mb
Release : 2000-06-13
Category : Science
ISBN : 0471297070

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Conformational Analysis of Molecules in Excited States by Jacek Waluk Pdf

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

Author : Chris D. Geddes
Publisher : Springer Science & Business Media
Page : 388 pages
File Size : 49,9 Mb
Release : 2011-11-25
Category : Medical
ISBN : 9781441998286

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Reviews in Fluorescence 2010 by Chris D. Geddes Pdf

Reviews in Fluorescence 2010, the seventh volume of the book serial from Springer, serves as a comprehensive collection of current trends and emerging hot topics in the field of fluorescence and closely related disciplines. It summarizes the year’s progress in fluorescence and its applications, with authoritative analytical reviews specialized enough to be attractive to professional researchers, yet also appealing to the wider audience of scientists in related disciplines of fluorescence. Reviews in Fluorescence offers an essential reference material for any lab working in the fluorescence field and related areas. All academics, bench scientists, and industry professionals wishing to take advantage of the latest and greatest in the continuously emerging field of fluorescence will find it an invaluable resource. Key features: Accessible utility in a single volume reference. chapters authored by known leading figures in the fluorescence field, new volume publishes annually, comprehensive coverage of the year's hottest and emerging topics, each Reviews in Fluorescence volume is citable (ISI) and indexed. Reviews in Fluorescence 2010 topics include: Novel Metal-based Luminophores for Biological Imaging. hydration Dynamics of Probes and Peptides in Captivity, how does tobacco etch viral mRNA get translated? A fluorescence study of competition, stability and kinetics, synchronous Fluorescence Spectroscopy and Its Applications in Clinical Analysis and Food Safety Evaluation, quantitative molecular imaging in living cells via FLIM, a Multiparametric Imaging of Cellular Coenzymes for Monitoring Metabolic and Mitochondrial Activities, optimal Conditions for Live Cell Microscopy and Raster Image Correlation Spectroscopy (RICS).

Author : Gastone Gilli,Paola Gilli
Publisher : Oxford University Press
Page : 337 pages
File Size : 43,8 Mb
Release : 2009-06-25
Category : Medical
ISBN : 9780199558964

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The Nature of the Hydrogen Bond by Gastone Gilli,Paola Gilli Pdf

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.

Author : Serge N. Vinogradov,Robert H. Linnell
Publisher : Unknown
Page : 344 pages
File Size : 47,8 Mb
Release : 1971
Category : Science
ISBN : STANFORD:36105031280063

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Hydrogen Bonding by Serge N. Vinogradov,Robert H. Linnell Pdf

Author : Bernard Pullman,N. Goldblum
Publisher : Springer Science & Business Media
Page : 470 pages
File Size : 44,7 Mb
Release : 1977-10-31
Category : Science
ISBN : 9027708533

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Excited States in Organic Chemistry and Biochemistry by Bernard Pullman,N. Goldblum Pdf

Proceedings of the 10th Jerusalem Symposium on Quantum Chemistry and Biochemistry held in Jerusalem, Israel, March 28-31, 1977