Download or read book Using Vibrational Excitation to Control Reactions and Determine Reaction Mechanisms written by Joann M. Pfeiffer and published by . This book was released on 1996 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Controlling the Quantum World written by National Research Council and published by National Academies Press. This book was released on 2007-06-21 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of the Physics 2010 decadal survey project, the Department of Energy and the National Science Foundation requested that the National Research Council assess the opportunities, over roughly the next decade, in atomic, molecular, and optical (AMO) science and technology. In particular, the National Research Council was asked to cover the state of AMO science, emphasizing recent accomplishments and identifying new and compelling scientific questions. Controlling the Quantum World, discusses both the roles and challenges for AMO science in instrumentation; scientific research near absolute zero; development of extremely intense x-ray and laser sources; exploration and control of molecular processes; photonics at the nanoscale level; and development of quantum information technology. This book also offers an assessment of and recommendations about critical issues concerning maintaining U.S. leadership in AMO science and technology.
Download or read book Gas Phase Chemical Reaction Systems written by Jürgen Wolfrum and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume consists of edited papers presented at the International Symposion Gas Phase Chemical Reaction Systems: Experiments and Models 100 Years After Max Bodenslein, held at the Internationales Wissenschaftsforum Heidelberg (IWH) in Heidelberg during July 25-28, 1995. The intention of this symposion was to bring together leading researchers from the fields of reaction dynamics, kinetics, catalysis and reactive flow model ling to discuss and review the advances in the understanding of chemical kinetics about 100 years after Max Bodenstein's pioneering work on the "hydrogen iodine reaction", which he carried out at the Chemistry Institute of the University of Heidelberg. The idea to focus in his doctoral thesis [1] on this reaction was brought up by his supervisor Victor Meyer (successor of Robert Bunsen at the Chemistry Institute of the University of Heidelberg) and originated from the non reproducible behaviour found by Bunsen and Roscoe in their early photochemical investigations of the H2/Cl2 system [2] and by van't Hoff [3], and V. Meyer and co-workers [4] in their experiments on the slow combustion of H2/02 mixtures.
Download or read book Spectroscopy Reaction and Photodissociation in Highly Vibrationally Excited Molecules written by and published by . This book was released on 1991 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highly vibrationally excited molecules often control the course of chemical reactions in the atmosphere, combustion, plasmas, and many other environments. The research described in this Progress Report uses laser excitation and interrogation techniques to study and control the dynamics of highly vibrationally excited molecules. In particular, they show that it is possible to unravel the details and influence the course of photodissociation and bimolecular reaction. The experiments use laser excitation of overtone vibrations to prepare highly vibrationally excited molecules, frequently with single quantum state resolution, and laser spectroscopy to monitor the subsequent behavior of the excited molecule. We have studied the vibrationally mediated photodissociation and the bond- and state-selected bimolecular reaction of highly vibrationally excited molecules. In the first process, one photon creates a highly excited molecule, a second photon from another laser dissociates it, and light from a third laser detects the population of individual product quantum states. This approach allows us to explore otherwise inaccessible regions of the ground and excited state potential energy surface and, by exciting to the proper regions of the surface, to control the breaking of a selected chemical bond. In the second process, the highly vibrationally excited molecule reacts with an atom formed either in a microwave discharge or by photolysis and another laser interrogates the products. We have used this approach to demonstrate mode- and bond-selected bimolecular reactions in which the initial excitation controls the subsequent chemistry. 30 refs., 8 figs.
Download or read book Time resolved Mechanisms of Organic Reactions Methodology and Applications written by Zhongyue Yang and published by . This book was released on 2017 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis focuses on the study of time-resolved mechanism of organic reactions with molecular reaction dynamics simulations. Gas-phase trajectory simulations were performed on (1) dimethyldioxirane C-H oxidation, which show how polar acetone solvation favors diradical recombination, leading to the retention of stereospecificity; (2) dehydro-Diels-Alder reactions, which reveal intrinsic dynamic features for concerted and stepwise pathways, where concerted pathway involves a vibrational excitation, while stepwise pathway involves a rotational excitation; (3) cyclopentadiene dimerization, in which two-stage pathway, as originally proposed by Woodward and Katz, is involved in 13% of the reactive trajectories, presenting a typical "dynamically stepwise" feature with time gap between formation of two bonds longer than 60 fs; and (4) sixteen reactions with potential energy surface bifurcation, where a linear correlation was found between TS bond lengths and the product ratio, serving as an empirical model to assist the discovery of new bifurcating reactions, and estimate product ratio without the expense of MD simulations. The thesis reports the development of a new computational method, environment-perturbed transition state sampling, (EPTSS) to enable the study of reaction dynamics in solvent and in enzyme. EPTSS integrates the conformational sampling of solvent/enzyme and quasi-classical sampling of reacting molecules, which was inspired by Truhlar and Gao's ensemble-average variational transition state theory. The method has been applied to (1) water-accelerated Diels-Alder reaction, which shows how water molecules dynamically participate the reaction and forms enhanced hydrogen bonds; (2) phosphoric acid-catalyzed allylboration reactions, in which an intrinsic synergy of enhancement between the CHi i i O and OHi i i O hydrogen bonds were observed, and the enhancement is diminished in toluene solvent; and (3) SpnF-catalyzed Diels-Alder reaction, which first demonstrates how enzyme dynamically control the product ratio of bifurcating reactions.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-03 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Pollution Abstracts written by and published by . This book was released on 1974 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Handbook of Infrared and Raman Characteristic Frequencies of Organic Molecules written by Daimay Lin-Vien and published by Elsevier. This book was released on 1991-12-02 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This necessary desk reference for every practicing spectroscopist represents the first definitive book written specifically to integrate knowledge about group frequencies in infrared as well as Raman spectra. In the spirit of previous classics developed by Bellamy and others, this volume has expanded its scope and updated its coverage. In addition to detailing characteristic group frequencies of compounds from a comprehensive assortment of categories, the book includes a collection of spectra and a literature search conducted to verify existing correlations and to determine ways to enhance correlations between vibrational frequencies and molecular structure. Particular attention has been given to the correlation between Raman characteristic frequencies and molecular structure. Constitutes a necessary reference for every practicing vibrational spectroscopist Provides the new definitive text on characteristic frequencies of organic molecules Incorporates group frequencies for both infrared and Raman spectra Details the characteristic IR and Raman frequencies of compounds in more than twenty major categories Includes an extensive collection of spectra Compiled by internationally recognized experts
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-08 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Journal of Chemical Physics written by and published by . This book was released on 2003 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polariton Chemistry written by Joel Yuen-Zhou and published by . This book was released on 2023-05-09 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a pedagogical introduction to the emerging field of Polariton Chemistry, where optical cavities are utilized to control the physicochemical properties and dynamics of molecular systems. Given the early stages of this interdisciplinary research area, it is important to provide a common language and starting point for interested researchers across Chemistry, Physics, and Engineering This edited compendium fills a void given that there is currently no analogue in the current literature. Topics covered include Single-Molecule Strong Light-Matter Coupling; Collective Strong Light-Matter Coupling; and Ultrastrong Light-Matter Coupling
Download or read book Chemical Kinetics and Reaction Dynamics written by Santosh K. Upadhyay and published by Springer Science & Business Media. This book was released on 2007-04-29 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical Kinetics and Reaction Dynamics brings together the major facts and theories relating to the rates with which chemical reactions occur from both the macroscopic and microscopic point of view. This book helps the reader achieve a thorough understanding of the principles of chemical kinetics and includes: Detailed stereochemical discussions of reaction steps Classical theory based calculations of state-to-state rate constants A collection of matters on kinetics of various special reactions such as micellar catalysis, phase transfer catalysis, inhibition processes, oscillatory reactions, solid-state reactions, and polymerization reactions at a single source. The growth of the chemical industry greatly depends on the application of chemical kinetics, catalysts and catalytic processes. This volume is therefore an invaluable resource for all academics, industrial researchers and students interested in kinetics, molecular reaction dynamics, and the mechanisms of chemical reactions.
Download or read book Journal of Research of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1985 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Russian Chemical Reviews written by and published by . This book was released on 2001 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book N A P C A Abstract Bulletin written by United States. Environmental Protection Agency and published by . This book was released on 1971 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicology Research Projects Directory written by and published by . This book was released on 1980 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
