Author: Emily L. Moore
Publisher:
ISBN:
Category : Laser photochemistry
Languages : en
Pages : 416

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Book Description

Author: C. Bradley Moore
Publisher: Elsevier
ISBN: 0323151604
Category : Science
Languages : en
Pages : 411

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Book Description
Chemical and Biochemical Applications of Lasers aims to give a general introduction to as well as an evaluation of the successful application of lasers in various areas, especially in the fields of chemistry and biochemistry. The book begins with a basic knowledge of general laser physics and the types of lasers, then moves on to more specific topics that include the Raman spectra of biological materials; laser spectroscopy of gas phase ions; and optical analogs of magnetic spectroscopy. The text also discusses the molecular beams; the energy flow in polyatomic molecules; and the different properties of molecules in relation to electronical excitation and quasi-electric light scattering. Studies of different chemical reactions are also included. The text is recommended for chemists, biochemists, and chemical physicists who want to know more about lasers and its applications to their respective fields. The book will also be helpful for those concerned with the chemical reactions lasers can bring about and for those who want to conduct further studies regarding laser uses.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 91

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Book Description
A series of measurements on free radicals produced by chemical reaction and photodissociation has been made, using laser methods for formation and in some cases, detection. Highly exothermic reactions between oxygen atoms and both CF2 and CHF radicals have been studied by time resolved Fourier transform infrared emission spectroscopy, yielding information on the reaction pathway, emitting products, kinetics of formation and quenching, and the nascent vibrational distributions. Emitting species hydrogen chloride, hydrogen fluoride, carbon monoxide, and carbon dioxide have been identified in these systems. In a second study, the quantum state distributions and polarisations of OH and OD(A2sigma+) products of the two photon dissociation of H2O and D2O at 266 nm have been measured. Results show the importance of long lived trajectories in determining the photodissociation dynamics, but the unexpected observation of low fragment alignment is unable to clarify the two photon state responsible for the excitation step. A third project has concentrated on measurements of radiative lifetimes of the CF(A2 sigma +) state, with new information on the A-X spectroscopy and on the O + CF(X2II) reaction rate constant found. Finally, preliminary measurements on the nascent CO rational distribution in the O + CS reaction is reported, and some additional experiments concerning the formation of carbene radicals in liquid phase enzyme cleavage studies are described. Carbon difluoride, Water, Deuterium. (MJM).

Author: G. Hancock
Publisher:
ISBN:
Category : Atoms
Languages : en
Pages : 5

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Book Description
(1) CF Chemistry: Radiative lifetimes of the carbon fluoride ion has been measured, with values of 26.7 and 26. Ins obtained respectively. This is the first time that such direct measurements have been reported, and the work is now being prepared for submission to Chemical Physics Letters. (2) O + CF and O + CF2 reactions: Interferograms of IR emission accompanying the O + CF2 reaction have been recorded as a function of time, and thus the complete two dimensional (time and wavelength) mapping of the products of the reaction have been emerged. Figure 1 shows a time history of the complete IR emission (all wavelengths) following the photolysis of CF2HCl (to produce CF2 radicals) in a flow of atomic oxygen.

Author: Gus Hancock
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description

Author: Jürgen Wolfrum
Publisher: Springer Science & Business Media
ISBN: 3642802990
Category : Science
Languages : en
Pages : 350

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Book Description
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.

Author: Helmut H. Telle
Publisher: John Wiley & Sons
ISBN: 9780470059401
Category : Science
Languages : en
Pages : 516

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Book Description
Laser Chemistry: Spectroscopy, Dynamics and Applications provides a basic introduction to the subject, written for students and other novices. It assumes little in the way of prior knowledge, and carefully guides the reader through the important theory and concepts whilst introducing key techniques and applications.

Author: Gus Hancock
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description

Author: A. Fontijn
Publisher: Elsevier
ISBN: 1483291219
Category : Science
Languages : en
Pages : 711

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Book Description
The book brings together, for the first time, all aspects of reactions of metallic species in the gas phase and gives an up-to-date overview of the field. Reactions covered include those of atomic, other free radical and transient neutral species, as well as ions. Experimental and theoretical work is reviewed and the efforts to establish a closer link between these approaches are discussed. The field is mainly approached from a fundamental point-of-view, but the applied problems which have helped stimulate the interest are pointed out and form the major subject of the final chapters. These emphasize the competition between purely gas-phase and gas-surface reactions.

Author: D. W. Setser
Publisher: Elsevier
ISBN: 1483220214
Category : Science
Languages : en
Pages : 369

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Book Description
Reactive Intermediates in the Gas Phase: Generation and Monitoring covers methods for reactive intermediates in the gas phase. The book discusses the generation and measurement of atom and radical concentrations in flow systems; the high temperature flow tubes, generation and measurement of refractory species; and the electronically excited long-lived states of atoms and diatomic molecules in flow systems. The text also describes the production and detection of reactive species with lasers in static systems; the production of small positive ions in a mass spectrometer; and the discharge-excited rare gas halide lasers. Chemists, physicists, and people working in aerochem laboratories will find the book invaluable.