Dissociative photodetachment dynamics of O2− · (H2O)
✍ Scribed by C.R. Sherwood; R.E. Continetti
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 712 KB
- Volume
- 258
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The dynamics of dissociative photodetachment in O~.(H20) were studied using the technique of fast-beam photofragment translational spectroscopy. The kinetic energy and angular distributions of the neutral molecules produced by dissociative photodetachment (O~-(H20) + h v ~ O 2 + H20 + e-) were recorded at 523.6, 349.0 and 261.8 rim. Dissociative photodetachment is observed to occur at all of these wavelengths with nearly identical kinetic energy release. The product angular distributions from dissociative photodetachment are slightly anisotropic and exhibit a small wavelength dependence. These results suggest that dissociative photodetachment of 0 2. (H20) occurs via Franck-Condon excitation to a weakly repulsive region of the 0 2 • (H20) potential energy surface.
📜 SIMILAR VOLUMES
Metastable H(2s), H2(c3&), and probably O(%') fragments are formed by electron-impact dissociation of H20. The fragment translational energies are given by time-of-flight measurements and their identities and electronic states are determined by approximate threshold energies and deuterium isotope sh