A technique to investigate photodissociation kinetics on a nanosecond time scale has been devised for molecular ions generated by multiphoton ionization (MPI) using mass-analyzed ion kinetic energy spectrometry. The branching ratio or rate constant has been determined for the photodissociation of th
Photodissociation of D2O in the second continuum by two-photon absorption at 266 nm
β Scribed by R.G. Briggs; J.B. Halpern; G. Hancock; N. Shafizadeh; J. Rostas; J.L. Lemaire; F. Rostas
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 406 KB
- Volume
- 156
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
The rotational population distribution of OD*(A 'Z* ) fragments produced by two-photon photodissociation of D20 at 266 nm has been determined from an analysis of the A *x+-X 'I-I fluorescence. The distribution obtained seems to confirm the existence of long-lived trajectories when the dissociation of Hz0 or D1O is initiated with a small energy excess above the threshold for production of excited OH (OD) fragments.
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EIectronicalJy excited oxygen atoms, O(2lD23, generated by the pulsed irradiatkn of ozone in the Hartley continuum, have been observed by bsorption spectroscopy using time-resolved attenuation of resonance radiation in the vacuum ultra-violet (O(31D2$41(21D ) 2 , h 115.2 nm). The concentration profi
The excitation spectrum of a stable photoproduct of 0 2 is recorded by monitoring the 1S ~ 1D emission of O in Ar matrices at 15 K between 200 and 100 nm. The time evolution and changes in intensity of the tS ~ 1D emission of O at different excitation energies indicate the presence of a stable speci