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Vibrational Relaxation Rates And Pathways In Highly Excited Molecules
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Author :United States. Air Force. Directorate of Chemical and Atmospheric Sciences Publisher : ISBN 13 : Total Pages :126 pages Book Rating :4.:/5 (3 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 1984 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1993 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Current Laser Abstracts by :
Download or read book Journal of Current Laser Abstracts written by and published by . This book was released on 1986 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Testing Molecular Wires by : Mateusz Wielopolski
Download or read book Testing Molecular Wires written by Mateusz Wielopolski and published by Springer Science & Business Media. This book was released on 2010-11-02 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a major contribution to the field of charge transport through organic pi-conjugated molecules. Besides its impact on molecular electronics, the work also applies to the design and development of light harvesting, photoconversion and catalytic modules.
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamics written by and published by Elsevier. This book was released on 2008-10-09 with total page 1037 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of the Handbook of Surface Science covers all aspects of the dynamics of surface processes. Two dozen world leading experts in this field address the subjects of energy exchange in gas atoms, surface collisions, the rules governing dissociative adsorption on surfaces, the formation of nanostructures on surfaces by self-assembly, and the study of surface phenomena using ultra-fast lasers. The chapters are written for both newcomers to the field as well as researchers.• Covers all aspects of the dynamics of surface processes • Provides understanding of this unique field utilizing a multitude of accurate experiments and advanced microscopic theory that allows quantum-level comparisons • Presents the concepts and tools relevant beyond surface science for catalysis, nanotechnology, biology, medicine, and materials
Book Synopsis Vibrational Relaxation of Aromatic Molecules in Solid Argon by : James Austin Ball
Download or read book Vibrational Relaxation of Aromatic Molecules in Solid Argon written by James Austin Ball and published by . This book was released on 1989 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Chemical Reaction Dynamics by : Peter M. Rentzepis
Download or read book Advances in Chemical Reaction Dynamics written by Peter M. Rentzepis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the formal lectures and contributed papers presented at the NATO Advanced Study Institute on. the Advances in Chemical Reaction Dynamics. The meeting convened at the city of Iraklion, Crete, Greece on 25 August 1985 and continued to 7 September 1985. The material presented describes the fundamental and recent advances in experimental and theoretical aspects of, reaction dynamics. A large section is devoted to electronically excited states, ionic species, and free radicals, relevant to chemical sys tems. In addition recent advances in gas phase polymerization, formation of clusters, and energy release processes in energetic materials were presented. Selected papers deal with topics such as the dynamics of electric field effects in low polar solutions, high electric field perturbations and relaxation of dipole equilibria, correlation in picosecond/laser pulse scattering, and applications to fast reaction dynamics. Picosecond transient Raman spectroscopy which has been used for the elucidation of reaction dynamics and structural changes occurring during the course of ultrafast chemical reactions; propagation of turbulent flames and detonations in gaseous· energetic systems are also discussed in some detail. In addition a large portion of the program was devoted to current experimental and theoretical studies of the structure of the transition state as inferred from product state distributions; translational energy release in the photodissociation of aromatic molecules; intramolecu lar and intraionic dynamic processes.
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Dynamics And Spectroscopy By Stimulated Emission Pumping by : Hai-lung Dai
Download or read book Molecular Dynamics And Spectroscopy By Stimulated Emission Pumping written by Hai-lung Dai and published by World Scientific. This book was released on 1995-06-29 with total page 1137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the first stimulated emission pumping (SEP) experiments more than a decade ago, this technique has proven powerful for studying vibrationally excited molecules. SEP is now widely used by increasing numbers of research groups to investigate fundamental problems in spectroscopy, intramolecular dynamics, intermolecular interactions, and even reactions. SEP provides rotationally pre-selected spectra of vibrationally highly excited molecules undergoing large amplitude motions. A unique feature of SEP is the ability to access systematically a wide variety of extreme excitations localized in various parts of a molecule, and to prepare populations in specific, high vibrational levels. SEP has made it possible to ask and answer specific questions about intramolecular vibrational redistribution and the role of vibrational excitation in chemical reactions.
Book Synopsis Advanced Diffusion Studies of Active Enzymes and Nanosystems by : Jan-Philipp Günther
Download or read book Advanced Diffusion Studies of Active Enzymes and Nanosystems written by Jan-Philipp Günther and published by Cuvillier Verlag. This book was released on 2021-02-03 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enzymes are fascinating chemical nanomachines that catalyze many reactions, which are essential for life. Studying enzymes is therefore important in a biological and medical context, but the catalytic potential of enzymes also finds use in organic synthesis. This thesis is concerned with the fundamental question whether the catalytic reaction of an enzyme or molecular catalyst can cause it to show enhanced diffusion. Diffusion measurements were performed with advanced fluorescence correlation spectroscopy (FCS) and diffusion nuclear magnetic resonance (NMR) spectroscopy techniques. The measurement results lead to the unraveling of artefacts in enzyme FCS and molecular NMR measurements, and thus seriously question several recent publications, which claim that enzymes and molecular catalysts are active matter and experience enhanced diffusion. In addition to these fundamental questions, this thesis also examines the use of enzymes as biocatalysts. A novel nanoconstruct – the enzyme-phage-colloid (E-P-C) – is presented, which utilizes filamentous viruses as immobilization templates for enzymes. E-P-Cs can be used for biocatalysis with convenient magnetic recovery of enzymes and serve as enzymatic micropumps. The latter can autonomously pump blood at physiological urea concentrations.
Book Synopsis Optics and Spectroscopy at Surfaces and Interfaces by : Vladimir G. Bordo
Download or read book Optics and Spectroscopy at Surfaces and Interfaces written by Vladimir G. Bordo and published by John Wiley & Sons. This book was released on 2008-07-11 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers linear and nonlinear optics as well as optical spectroscopy at solid surfaces and at interfaces between a solid and a liquid or gas. The authors give a concise introduction to the physics of surfaces and interfaces. They discuss in detail physical properties of solid surfaces and of their interfaces to liquids and gases and provide the theoretical background for understanding various optical techniques. The major part of the book is dedicated to a broad review on optical techniques and topical applications such as infrared and optical spectroscopy or optical microscopy. Discussions of nonlinear optics, but also nano-optics and local spectroscopy complement this self-contained work. Helpful features include about 50 problems with solutions, a glossary and a thoroughly elaborated list of topical references. The book is suited as a text for graduate students but also for scientists working in physics, chemistry, materials or life sciences who look for an expert introduction to surface optical aspects of their studies.
Book Synopsis Mechanochemical Processes in Energetic Materials by : Adam A. L. Michalchuk
Download or read book Mechanochemical Processes in Energetic Materials written by Adam A. L. Michalchuk and published by Springer Nature. This book was released on 2020-11-23 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book uses experimental and computational methods to rationalize and predict for the first time the relative impact sensitivities of a range of energetic materials. Using knowledge of crystal structures, vibrational properties, energy-transfer mechanisms, and experimentally measured sensitivities, it describes a model that leads to excellent correlation with experimental results in all cases. As such, the book paves the way for a new, fully ab initio approach for the design of safer energetic materials based solely on knowledge of their solid-state structures. Energetic materials (explosives, propellants, gas generators, and pyrotechnics) are defined as materials that release heat and/or gaseous products at a high rate upon stimulus by heat, impact, shock, sparks, etc. They have widespread military and civilian uses, including munitions, mining, quarrying, demolition, emergency signaling, automotive safety, and space exploration. One of their most important properties is sensitivity to accidental initiation during manufacture, transport, storage, and operation, which has important implications for their safe use.
Book Synopsis Principles of Molecular Photochemistry: An Introduction by : Nicholas J. Turro
Download or read book Principles of Molecular Photochemistry: An Introduction written by Nicholas J. Turro and published by University Science Books. This book was released on 2009-01-16 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text develops photochemical and photophysical concepts from a set of familiar principles. Principles of Molecular Photochemistry provides in-depth coverage of electronic spin, the concepts of electronic energy transfer and electron transfer, and the progress made in theoretical and experimental electron transfer.
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 Chlorophyll a Fluorescence by : G.C. Papageorgiou
Download or read book Chlorophyll a Fluorescence written by G.C. Papageorgiou and published by Springer Science & Business Media. This book was released on 2007-11-12 with total page 853 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chlorophyll a Fluorescence: A Signature of Photosynthesis highlights chlorophyll (Chl) a fluorescence as a convenient, non-invasive, highly sensitive, rapid and quantitative probe of oxygenic photosynthesis. Thirty-one chapters, authored by 58 international experts, provide a solid foundation of the basic theory, as well as of the application of the rich information contained in the Chl a fluorescence signal as it relates to photosynthesis and plant productivity. Although the primary photochemical reactions of photosynthesis are highly efficient, a small fraction of absorbed photons escapes as Chl fluorescence, and this fraction varies with metabolic state, providing a basis for monitoring quantitatively various processes of photosynthesis. The book explains the mechanisms with which plants defend themselves against environmental stresses (excessive light, extreme temperatures, drought, hyper-osmolarity, heavy metals and UV). It also includes discussion on fluorescence imaging of leaves and cells and the remote sensing of Chl fluorescence from terrestrial, airborne, and satellite bases. The book is intended for use by graduate students, beginning researchers and advanced undergraduates in the areas of integrative plant biology, cellular and molecular biology, plant biology, biochemistry, biophysics, plant physiology, global ecology and agriculture.
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
