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Radiationless Transitions In Polyatomic Molecules
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Book Synopsis Radiationless Transitions in Polyatomic Molecules by : Ėmilʹ Samuilovich Medvedev
Download or read book Radiationless Transitions in Polyatomic Molecules written by Ėmilʹ Samuilovich Medvedev and published by Springer. This book was released on 1995 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiationless Transitions in Polyatomic Molecules treats the dynamics of electronically excited states and the transition probabilities of electronic relaxation processes. Based on a simple and transparent, yet rigorous presentation of the basic physical concepts, the mathematical methods required are developed in detail from first principles and new light shed on the treatment of traditional issues.
Book Synopsis Radiationless Transitions in Polyatomic Molecules by : Emile S. Medvedev
Download or read book Radiationless Transitions in Polyatomic Molecules written by Emile S. Medvedev and published by Springer. This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiationless transitions comprise an important class of physical phenomena occurring in the excited states of molecules. They affect the lifetimes of the ex cited states and govern primary photochemical and photophysical processes. Much effort has been devoted to the understanding of radiationless transi tions. Still, owing to recent advances, the field continues to attract attention. The demand for a book on the theory of these processes naturally arises in at tempting to comprehend a large body of literature, as the famous review article by K. F. Freed and the book by R. Englman do not encompass some issues of current interest. Our intent is to highlight the underlying physical principles and methods in such a way that the book both in its content and its presentation is instruc tive for a wide audience. The basic ideas are treated in simple mathematical terms intelligible to ex perimentalists and to readers unfamiliar with the field. Complicated theoret ical methods are always expounded from first principles, so that a knowledge of quantum mechanics and mathematics at the graduate-student level will enable the reader to easily follow the derivations. Experts will find efficient methods of calculating the transition rates, as well as new applications of quasiclassical methods and fresh treatments of standard problems. Details of measurements are not discussed, and experimental data are only invoked to illustrate the theory.
Book Synopsis Radiationless Transitions by : Sheng Lin
Download or read book Radiationless Transitions written by Sheng Lin and published by Elsevier. This book was released on 2012-12-02 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiationless Transitions is a critical discussion of research studies on the theory and experiments in radiationless transitions. This book is composed of nine chapters, and begins with discussions on the theory and experiment of photophysical processes of single vibronic levels and/or single rovibronic levels. The subsequent chapters deal with the spectroscopic investigations of intramolecular vibrational relaxation; the dynamics of molecular excitation by light; and the photophysical processes of small molecules in condensed phase. The discussions then shift to the high pressure effects on molecular luminescence and the internal conversion involving localized excitations, presenting one qualitative and one quantitative example, as well as the intersystem crossing with localized excitations. A chapter explores the energy transfer processes that occur after a molecule in solution is excited by light, with an emphasis on solid solutions in which the large amplitude molecular motion is largely quenched. This chapter also looks into the liquid solutions in which the molecules can translate and rotate under the influence of fluctuating forces from the liquid. The concluding chapter focuses on ultrafast processes. Researchers in the fields of physics, chemistry, and biology will benefit from this book.
Book Synopsis Picosecond Radiationless Transitions in Polyatomic Molecules by : G. Wilse Robinson
Download or read book Picosecond Radiationless Transitions in Polyatomic Molecules written by G. Wilse Robinson and published by . This book was released on 1977 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiationless transitions concern the way energy is stored, exchanged and utilized in chemical systems. It is therefore a more important area of study than the radiative transitions which accompany them. The main thrust of the research was to modernize the theory of radiationless transitions in polyatomic molecules, and to utilize the intuition gained for suggesting interesting picosecond experiments dealing with energy exchange and other types of radiationless processes.
Book Synopsis Radiationless Transitions in Polyatomic Molecules by : Emile S. Medvedev
Download or read book Radiationless Transitions in Polyatomic Molecules written by Emile S. Medvedev and published by Springer. This book was released on 1995 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiationless Transitions in Polyatomic Molecules treats the dynamics of electronically excited states and the transition probabilities of electronic relaxation processes. Based on a simple and transparent, yet rigorous presentation of the basic physical concepts, the mathematical methods required are developed in detail from first principles and new light shed on the treatment of traditional issues.
Book Synopsis Photodissociation Dynamics by : Reinhard Schinke
Download or read book Photodissociation Dynamics written by Reinhard Schinke and published by Cambridge University Press. This book was released on 1995-05-11 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photodissociation induced by the absorption of single photons permits the detailed study of molecular dynamics such as the breaking of bonds, internal energy transfer and radiationless transitions. The availability of powerful lasers operating over a wide frequency range has stimulated rapid development of new experimental techniques which make it possible to analyse photodissociation processes in unprecedented detail. This text elucidates the achievements in calculating photodissociation cross-sections and fragment state distributions from first principles, starting from multi-dimensional potential energy surfaces and the Schrödinger equation of nuclear motion. Following an extended introduction in which the various types of observables are outlined, the book summarises the basic theoretical tools, namely the time-independent and the time-dependent quantum mechanical approaches as well as the classical picture of photodissociation. The discussions of absorption spectra, diffuse vibrational structures, the vibrational and rotational state distributions of the photofragments form the core of the book. More specific topics such as the dissociation of vibrationally excited molecules, emission during dissociation, or nonadiabatic effects are also discussed. It will be of interest to graduate students and senior scientists working in molecular physics, spectroscopy, molecular collisions and molecular kinetics.
Book Synopsis Transitions in Molecular Systems by : Hans J. Kupka
Download or read book Transitions in Molecular Systems written by Hans J. Kupka and published by John Wiley & Sons. This book was released on 2011-07-28 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling the gap for a book covering vibronic, nonadiabatic and diabatic couplings as well as radiationless processes in context, this monograph compiles classic and cutting-edge work from numerous researchers into one handy source. Alongside a description of radiationless processes in statistical large molecules and calculational methods for intramolecular distributions, the authors also investigate the nuclear coordinate dependence of matrix elements. Whole chapters are devoted to the mathematical description of the lifetime and decay of a prepared states as well as miscellaneous applications. The text is supplemented by a number of appendices for optimum usability. With its integration of the necessary mathematical rigor, this is primarily intended for graduate students in theoretical physics and chemistry, but is also indispensable reading for those working in molecular physics, physical chemistry and laser physics.
Book Synopsis Time Dependent Methods for Radiative and Nonradiative Electronic Transitions in Polyatomic Molecules by : Robert Craig Brown
Download or read book Time Dependent Methods for Radiative and Nonradiative Electronic Transitions in Polyatomic Molecules written by Robert Craig Brown and published by . This book was released on 1983 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamics of Molecular Collisions by : W. Miller
Download or read book Dynamics of Molecular Collisions written by W. Miller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activity in any theoretical area is usually stimulated by new experimental techniques and the resulting opportunity of measuring phenomena that were previously inaccessible. Such has been the case in the area under consideration here beginning about fifteen years ago when the possibility of studying chemical reactions in crossed molecular beams captured the imagination of physical chemists, for one could imagine investigating chemical kinetics at the same level of molecular detail that had previously been possible only in spectroscopic investigations of molecular stucture. This created an interest among chemists in scattering theory, the molecular level description of a bimolecular collision process. Many other new and also powerful experimental techniques have evolved to supplement the molecular beam method, and the resulting wealth of new information about chemical dynamics has generated the present intense activity in molecular collision theory. During the early years when chemists were first becoming acquainted with scattering theory, it was mainly a matter of reading the physics literature because scattering experiments have long been the staple of that field. It was natural to apply the approximations and models that had been developed for nuclear and elementary particle physics, and although some of them were useful in describing molecular collision phenomena, many were not. The most relevant treatise then available to students was Mott and Massey's classic The Theory of Atomic Collisions, * but, as the title implies, it dealt only sparingly with the special features that arise when at least one of the collision partners is a molecule.
Book Synopsis Excited States of Biopolymers by : Robert Steiner
Download or read book Excited States of Biopolymers written by Robert Steiner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past decade, fluorescence techniques have come to occupy a position of central importance in biochemistry. Such areas as laser techniques, radiation less energy transfer, and nanosecond fluorometry have evolved from esoteric research specialties into standard procedures that are applied routinely to bio chemical problems. Indeed, discussion of the above three areas occupies the greater part of this book. Its level and approach are appropriate for the bio logical or physical scientist who is interested in applying fluorescence techniques, but is not necessarily an expert in this area. The coverage of the literature has, in general, been selective rather than exhaustive. It is likely that what is summarized here will prove resistant to the erosion of time and provide a basis for the future evolution of this rapidly developing area of science. Robert F. Steiner Catonsville, Maryland vii Contents Chapter 1 Some Principles Governing the Luminescence of Organic Molecules R. M Hochstrasser 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. Spontaneous Emission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. 1. General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. 2. Luminescence from Nearby States . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. 3. Multiple State Decay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3. Molecular Luminescence Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 5 3. 1. The Transition Dipole Moment . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3. 2. Determination of Transition-Moment Directions from Fluorescence . . . 8 3. 3. Polarization of Fluorescence from Crystals. . . . . . . . . . . . . . . . . . . . 9 4. Principles of Luminescence Experiments Carried Out with Lasers. . . . . . . 12 4. 1. Nonlinear Processes and Optical Pumping . . . . . . . . . . . . . . . . . . . 12 5. Coherent Interactions of Molecules and Light . . . . . . . . . . . . . . . . . . . . 16 5. 1. The Distinctions between Fluorescence and Resonance Raman Effects 17 6. Ultrafast Fluorescence Decay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Book Synopsis Nonradiative Transitions in Molecules by : Société de chimie physique
Download or read book Nonradiative Transitions in Molecules written by Société de chimie physique and published by . This book was released on 1970 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Higher Excited States of Polyatomic Molecules by : Melvin Robin
Download or read book Higher Excited States of Polyatomic Molecules written by Melvin Robin and published by Elsevier. This book was released on 2012-12-02 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Higher Excited States of Polyatomic Molecules, Volume I focuses on the spectra in the vacuum-ultraviolet region between 50,000 and 100,000 cm-1. This book explores the higher excitations in molecules beyond 50,000 cm-1. Organized into three chapters, this volume starts with an overview of the excited-state properties of a molecule and the excited-state ionization potential. This book then proceeds with a discussion of the original classification of the properties as well as the types of excitations observed in the vacuum-ultraviolet. Other chapters discuss photoelectron spectroscopy, which is an independent, self-sustaining branch of molecular spectroscopy. This text examines as well the distinction between valence shell and Rydberg excitations. The final chapter deals with several topics, including the saturated molecules that are classified as having all valence electrons, the alkene absorption spectra, and the spectroscopic data on boron compounds. Analytical chemists, photochemists, molecular spectroscopists, and researchers will find this book extremely useful.
Book Synopsis A Handbook of Molecular Spectroscopy by : Pooja Bhagwan
Download or read book A Handbook of Molecular Spectroscopy written by Pooja Bhagwan and published by Mittal Publications. This book was released on 2005 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photophysics and Photochemistry in the Vacuum Ultraviolet by : S.P. McGlynn
Download or read book Photophysics and Photochemistry in the Vacuum Ultraviolet written by S.P. McGlynn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 953 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the texts of the Invited Lectures pre sented at the NATO Advanced Study Institute PHOTOPHYSICS AND PHOTOCHEMISTRY IN THE VACUUM ULTRAVIOLET, which was held at the Interlaken Lodge in Lake Geneva, Wisconsin USA, August 15-28, 1982. This ASI was the third in a series of NATO Institutes de voted to a study of the physical and chemical transformations undergone by atoms and molecules after absorption of high-energy (VUV
Author :United States. Air Force. Directorate of Chemical and Atmospheric Sciences Publisher : ISBN 13 : Total Pages :236 pages Book Rating :4.3/5 (91 download)
Book Synopsis AFOSR Chemical & Atmospheric Sciences Program Review by : United States. Air Force. Directorate of Chemical and Atmospheric Sciences
Download or read book AFOSR Chemical & Atmospheric Sciences Program Review written by United States. Air Force. Directorate of Chemical and Atmospheric Sciences and published by . This book was released on 1981 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Excited States written by Edward C. Lim and published by Academic Press. This book was released on 2013-10-22 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excited States, Volume I reviews radiationless transitions, phosphorescence microwave double resonance through optical spectra in molecular solids, dipole moments in excited states, luminescence of polar molecules, and the problem of interstate interaction in aromatic carbonyl compounds. The book discusses the molecular electronic radiationless transitions; the double resonance techniques and the relaxation mechanisms involving the lowest triplet state of aromatic compounds; as well as the optical spectra and relaxation in molecular solids. The text also describes dipole moments and polarizabilities of molecules in excited electronic states; the luminescence characteristics of polar aromatic molecules; and the interstate interaction in aromatic aldehydes and ketones. Chemists and physical chemists will find the book invaluable.
Book Synopsis Organic Photochemistry and Photophysics by : V. Ramamurthy
Download or read book Organic Photochemistry and Photophysics written by V. Ramamurthy and published by CRC Press. This book was released on 2005-11-14 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring contributions from leading experts, Organic Photochemistry and Photophysics is a unique resource that addresses the organic photochemistry and photophysical behavior in aromatic molecules, thiocarbonyls, selected porphyrins, and metalloporphyrins. The book presents theories pertaining to radiative and radiationless transitions. It
