Download or read book Vibrational Energy Flow in Electronically Excited Polyatomic Molecules written by David Bates Moss and published by . This book was released on 1986 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State Resolved Collisional Energy Transfer in Highly Vibrationally Excited Polyatomic Molecules written by and published by . This book was released on 1992 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transfer of energy in isolated or colliding molecules is a fundamental process with practical consequences for complex phenomena occurring in atmospheric chemistry, combustion, molecular lasers, plasmas, and a host of other environments containing energetic species. We have developed a technique that combines vibrational overtone excitation, to prepare highly vibrationally excited initial states, and time-resolved spectroscopic detection, to probe the evolution of the prepared state, for studying energy transfer in vibrationally energized molecules. We have used this approach to determine directly, for the first time, the frequencies of the three ungerade vibrations in the first electronically excited state of acetylene. Using this information we have characterized highly vibrationally excited states of acetylene and directly the frequencies and rotational constants of the perturbing vibrational states at these energies. Combining these spectroscopic insights on the vibrationally and electronically excited states of acetylene has allowed us to determine the energy transfer rates and pathways in the collisional relaxation of a polyatomic molecule containing 10,000 cm-1 of vibrational energy, Rotational energy transfer is very rapid, occurring on about every other collision, but is essentially unaffected by the identity of the vibrational state in which the rotational relaxation occurs.
Download or read book Introduction to Molecular Energy Transfer written by James Yardley and published by Elsevier. This book was released on 2012-12-02 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Molecular Energy Transfer intends to provide an elementary introduction to the subject of molecular energy transfer and relaxation. The book covers the foundation of molecular energy transfer such as quantum mechanics; the vibrational state of molecules; and vibrational energy transfer and the experimental methods for its study. Coverage also includes the different kinds of energy transfer in gases; vibrational relaxation in condensed phases; electronic states and interactions; electronic energy as a result of intermolecular interaction; radiationless electronic transition; and rotational energy transfer. The text is recommended for students, graduates, and researchers in the fields of physics and chemistry, especially those who would like to know more about molecular energy transfer.
Download or read book Charge and Energy Transfer Dynamics in Molecular Systems written by Volkhard May and published by John Wiley & Sons. This book was released on 2023-08-28 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: Charge and Energy Transfer Dynamics in Molecular Systems Comprehensive resource offering knowledge on charge and energy transfer dynamics in molecular systems and nanostructures Charge and Energy Transfer Dynamics in Molecular Systems provides a unified description of different charge and energy transfer phenomena in molecular systems with emphasis on the theory, bridging the regimes of coherent and dissipative dynamics and thus presenting classic rate theories as well as modern treatments of ultrafast phenomena. Starting from microscopic models, the common features of the different transfer processes are highlighted, along with applications ranging from vibrational energy flow in large polyatomic molecules, the motion of protons in solution, up to the concerted dynamics of electronic and nuclear degrees of freedom in molecules and molecular aggregates. The newly revised and updated Fourth Edition contains a more detailed coverage of recent developments in density matrix theory, mixed quantum-classical methods for dynamics simulations, and a substantially expanded treatment of time-resolved spectroscopy. The book is written in an easy-to-follow style, including detailed mathematical derivations, thus making even complex concepts understandable and applicable. Charge and Energy Transfer Dynamics in Molecular Systems includes information on: Electronic and vibrational molecular states, covering molecular Schrödinger equation, Born—Oppenheimer separation and approximation, Hartree-Fock equations and other electronic structure methods Dynamics of isolated and open quantum systems, covering multidimensional wave packet dynamics, and different variants of density operator equations Interaction of molecular systems with radiation fields, covering linear and nonlinear optical response using the correlation function approach Intramolecular electronic transitions, covering optical transition and internal conversion processes Transfer processes of electrons, protons, and electronic excitation energy Providing in-depth coverage of the subject, Charge and Energy Transfer Dynamics in Molecular Systems is an essential resource for anyone working on timely problems of energy and charge transfer in physics, chemistry and biophysics as well as for all engaged in nanoscience and organic electronics.
Download or read book Stochasticity and Intramolecular Redistribution of Energy written by Roland Lefebvre and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the invited papers presented at the NATO Advanced Research Workshop on "Stochasticity and Intramolecular Redistribution of Energy" held in Orsay (France) from June 23 to July 3, 1986. The Work shop brought together leading researchers involved in the experimental and the theoretical studies of vibrational energy flow and relaxation in activated polyatomic molecules. The recent experimental developments in this area include the study of ultracold molecules in supersonic beams and the development of high resolution (frequency domain) and ultrafast (time domain) spectroscopic techniques. On the theoretical side the intro duction of statistical methods (random matrix theory, reduced equations of motion) and efficient numerical algorithms provide an adequate frame work for the interpretation of vibrational dynamics in large polyatomic molecules. Classical, semiclassical and quantum calculations on simple model systems show the existence of regular and chaotic regions in the phase space. The articles in this volume provide an updated review of the current status of experimental studies and the relevance of the recent theoretical developments to their interpretation. We wish to thank the organizations which made this workshop possible. NATO prov ided the basic grant. We acknowledge the essential contribu tion of the late Dr Mario di Lullo in providing pertinent advice. The gen erous support of the U. S. Air Force Office of Scientific Research, the U. S.
Download or read book Collisional Energy Transfer in Highly Vibrationally Excited Polyatomic Molecules written by F. F. Crim and published by . This book was released on 1988 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three objectives of this work are to determine the nature of highly vibrationally excited polyatomic molecule, to determine the rate constants and pathways for the collisional relaxation of these molecules, and to probe the electronic spectroscopy of these molecules. We have created and implemented approaches for accomplishing these objectives and have demonstrated their feasibility by studying the collisional energy transfer in highly vibrational excited acetylene. We have found that the collisional self relaxation rates of single angular momentum states with 10,000/cm of vibrational energy are a substantial fraction of the gas kinetic collision rates. The rate constant is about a factor of two smaller for relaxation by atomic partners. Molecular energy transfer, Vibrational energy transfer. (MJM).
Download or read book Vibrational and Electronic Energy Levels of Polyatomic Transient Molecules written by Marilyn E. Jacox and published by Amer Inst of Physics. This book was released on 1994-01-01 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vibrational Energy Transfer in Small Polyatomic Molecules written by N. J. G. Smith and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical Aspects of Laser Radiation and Its Interaction with Atomic and Molecular Systems written by and published by . This book was released on 1977 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Advances In Molecular Spectroscopy Of Polyatomic Molecules And Small Clusters written by Koji Kaya and published by CRC Press. This book was released on 1994 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vibrational Energy Transfer in Polyatomic Molecules written by Sarah Margaret Anne Wright and published by . This book was released on 2000 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Formation and Decay of Excited Species written by C.H. Bamford and published by Elsevier. This book was released on 1969 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Formation and Decay of Excited Species
Download or read book Higher Excited States of Polyatomic Molecules V2 written by Melvin Robin and published by Academic Press. This book was released on 1975-01-28 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Higher Excited States of Polyatomic Molecules, Volume II focuses on a higher level of activity in vacuum ultraviolet spectroscopy. This book explores the Rydberg states in atoms and molecules. Comprised of five chapters, this volume starts with an overview of the two-center unsaturated molecules that usually display sharp Rydberg transitions originating with the pi electrons. This book then discusses the unsaturated double bond that adds another dimension to the spectrum. Other chapters explore the optical spectrum of the amide group, which is the basic chromophoric unit in polypeptides. This text further discusses the all-electron calculations of the electronic structure of the amide group that is performed in Gaussian orbital basis sets. This book considers as well the prominent characteristic of Rydberg excitations in benzene. The final chapter deals with the biological molecules that are polyfunctional in general. Analytical chemists, photochemists, molecular spectroscopists, and researchers will find this book extremely useful.
Download or read book Transfer and Storage of Energy by Molecules Electronic energy written by George Murray Burnett and published by . This book was released on 1969 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photochemistry and Photophysics written by Jan F. Rabek and published by CRC Press. This book was released on 1989-12-21 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive work presents a coherent critical review of photochemistry and photophysics, including inorganic, organic, atmospheric, environmental, material, biological and polymer fields. It also addresses the practical application of photochemical processes in reprography, microelectronics, and holography. These volumes are of great value to those involved in photochemical and photophysical research, and to graduate or advanced undergraduate students.
Download or read book Gas Kinetics and Energy Transfer written by P. G. Ashmore and published by Royal Society of Chemistry. This book was released on 1977-01-01 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the growing volume of published work in this field, researchers will find this book an invaluable source of information on current methods and applications.
Download or read book Advances in Energy Transfer Processes written by Baldassare Di Bartolo and published by World Scientific. This book was released on 2001 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes advances in both experimental and theoretical treatments in the field of energy transfer processes that are relevant to various fields, such as spectroscopy, laser technology, phosphors, artificial solar energy conversion, and photobiology. It presents the principles and available techniques through specific examples. In addition, it examines current and possible applications, including the most recent developments, and projects future advances and research possibilities in the field.
