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Thursday, July 23, 2020 | History

2 edition of Photodissociation of simple molecules in the gas phase. found in the catalog.

Photodissociation of simple molecules in the gas phase.

Hiroyasu Sato

Photodissociation of simple molecules in the gas phase.

by Hiroyasu Sato

  • 206 Want to read
  • 5 Currently reading

Published by Bunshin in Tokyo .
Written in English


ID Numbers
Open LibraryOL20584462M

Photodissociation, photolysis, or photodecomposition is a chemical reaction in which a chemical compound is broken down by is defined as the interaction of one or more photons with one target molecule. Photodissociation is not limited to visible photon with sufficient energy can affect the chemical bonds of a chemical compound.. Since a photon's energy is inversely.   The μm wavelength is widely absorbed by most organic molecules, although absorption of a single eV photon is insufficient to cause dissociation which accounts for its description as a multiphoton process. 18–20 Photodissociation has also been demonstrated using a femtosecond titanium sapphire laser which produces near IR photons at.

Methyl halide molecules are simple pseudo-diatomic photochemical model systems, which have been studied in great detail in the gas phase (see, e.g., [3–7]) as well on several metallic and nonmetallic solid substrates (see, e.g., [8–14]). The adsorption of methyl iodide on a gold surface has been previously investigated [9,11]. However.   A similar behavior has been observed for the photodissociation of HBr on LiF or of HCl on MgO. In gas phase, the absorption spectrum is smooth, whereas for the adsorbed molecule the absorption band exhibits oscillatory structures separated by approximatively eV.

Photodissociation is used to detect electromagnetic activity of ions, compounds, and clusters when spectroscopy cannot be directly applied. Low concentrations of analyte can be one inhibiting factor to spectroscopy esp. in the gas phase. Mass spectrometers, time-of-flight and ion cyclotron resonance have been used to study hydrated ion clusters. The photodissociation dynamics of IBr has been investigated near nm by a two-dimensional photofragment imaging technique. Book Search tips Selecting this option will search all publications across the Scitation platform Selecting this option will search all publications Photodissociation of Simple Molecules in the Gas Phase (Bunshin.


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Photodissociation of simple molecules in the gas phase by Hiroyasu Sato Download PDF EPUB FB2

Photodissociation of Simple Molecules in the Gas Phase Paperback – January 1, by Hiroyasu Sato (Author)Cited by:   Photodissociation of Small Molecules in the Gas Phase.

Bulletin of the Chemical Society of Japan75 (9), DOI: /bcsjCited by: Photodissociation of Small Molecules in the Gas Phase Article in Bulletin of the Chemical Society of Japan 75(9) September with 23 Reads How we measure 'reads'. Prime B&N Member Books A Million Club eCampus Member iRewards Member Filters: Photodissociation of Simple Molecules in the Gas Phase by Hiroyasu Sato Paperback, Pages, Published ISBN / ISBN / Author: Hiroyasu Sato.

The present paper concentrates largely on just one photophysical aspect -- photodissociation (i.e., molecular fragmentation as a result of photon absorption) -- since this represents one of the more probable, more interesting and, indeed, more studied consequences of the interaction of VUV photons with gas-phase small : M.

Ashfold. Ultraviolet photodissociation of C2F5I with a small and simple photofragment translational spectrometer. from unimolecular processes in the gas phase to complex reactions in a condensed environment. Polarized fluorescence of polyatomic fragments produced through photodissociation of polyatomic molecules in the gas phase.

4 Photodissociation in the gas Photodissociation of simple molecules in the gas phase. book Hiroyasu Sato* University of the Air, Mi’e Study Center, Kozu-beta, Isshinden TsuJapan. E-mail: [email protected]; Fax:. This Review will showcase the impact of ultraviolet photodissociation (UVPD) as a frontier strategy for generating informative fragmentation patterns of ions, especially for biological molecules whose complicated structures, subtle modifications, and.

Photodissociation of Simple Molecules in the Gas Phase. Chemical Reviews(9), DOI: /crl. Ahmed H. Zewail. Femtochemistry: Atomic-Scale Dynamics of the Chemical Bond. The H 6 + cation was generated in a pulsed-discharge supersonic expansion of hydrogen and mass-selected in a time-of-flight spectrometer.

Its vibrational spectrum was measured in the region of – cm −1 using infrared photodissociation with a tunable OPO/OPA laser system. The H 6 + photodissociates, producing H 5 +, H 4 +, and H 3 + fragments; each of these fragment channels has. The present two-dimensional model simulations of the laser pulse induced photodissociation of F 2 in Ar demonstrate an extension of previous rather simple reflection principles for photodissociation of molecules in the gas phase 1, 2.

Since the detection of methylidyne (CH) in deep space over 80 y ago, about molecules and molecular ions from molecular hydrogen to fullerenes have been observed in interstellar and circumstellar environments, but the synthesis of organosilicon molecules has remained largely elusive.

Exploiting silicon tricarbide (c-SiC3) as a benchmark, we provide evidence from laboratory. The experiments were supported by the Bundesminister fur Forschung and Technologie (contract No. PCFAB 8). References [ 1 ] H.

Sato, Photodissociation of simple molecules in the gas phase (Bunshin, Tokyo, ). [ 2 ] H. Okabe, Photochemistry of small molecules. The reactivity of cold gas-phase clusters was investigated as a model for chemical evolution in interstellar molecular clouds.

Chiral recognition using ions between amino acids and sugars was examined by mass spectrometry and ultraviolet spectroscopy measurements of gas-phase tryptophan (Trp) enantiomers hydrogen bonded with methyl-α-d-glucoside in Na +-containing or.

This is the twelfth supplement to the review "Photodissociation of Simple Molecules in the Gas Phase" which appeared in Vol of the Research Reports (), hereafter called the Main Review. Supplements I-XI appeared in Vols () - 22 (), respectively. organic molecules can well be explained by gas-phase processes [5], while ice chemistry fails to do so [3].

In this review talk, I will present some of the most recent achievements on gas-phase chemistry that might provide a new twist in our comprehension of the chemical evolution of.

This is the tenth supplement to the review "Photodissociation of Simple Molecules in the Gas Phase" which appeared in Vol of the Research Reports (), hereafter called the Main Review. Supplements I-IX appeared in Vols () - 20 (), respectively.

The choice of these drastic irradiation conditions is dictated by the energies required to excite, and eventually dissociate, these simple molecules. More than eV ( nm) is necessary to dissociate at ambient pressure the triple bonds of N 2 and CO for the generation of the precursors of bioorganic compounds (20).

The mechanism of photodissociation of formamide, its protonated forms and methyl substituted derivatives in their lowest singlet excited states in the gas phase is discussed in detail.

Merits and demerits of using these simple molecules as models in exploring photochemical and photophysical properties of more complex systems, like peptides and.

UV LASER PHOTODISSOCIATION OF SMALL MOLECULES ON SOLID SURFACES H. SAT0 and M. KAWASAKI INTRODUCTION Laser s u r f a c e c h e m i s t r y h a s b e e n u s e d a s a b a s i s for many new methods in surface processing, for example, photochemical deposition of metals and photochemical etching of solid substrates, which are potentially useful.

This is the seventh supplement to the review "Photodissociation of Simple Molecules in the Gas Phase" which appeared in Vol of the Research Reports (), hereafter called the Main Review.

Supplements I-VI appeared in Vols () - 17 (), respectively.The mechanism of photodissociation of formamide, its protonated forms and methyl substituted derivatives in their lowest singlet excited states in the gas phase is discussed in detail.This is the eighth supplement to the review "Photodissociation of Simple Molecules in the Gas Phase" which appeared in Vol of the Research Reports (), hereafter called the Main Review.

Supplements I-VII appeared in Vols () - 18 (), respectively.