The infrared multiphoton excitation of CFJ by CO1 laser radiation between 1068 and 1082 cm-' (9R4 to 9R26 lines) is monitored under collision-free conditions by (2 + 1) resonanceznhanced multiphoton ionization through the C state. The vibrational levels populated are measured as a function of infrar
Study of multiphoton resonances in the CF3I molecule
โ Scribed by U. del Bello; E. Borsella; R. Fantoni; A. Giardini-Guidoni; C.D. Cantrell
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 607 KB
- Volume
- 114
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
A systematic investigation of the hIPA and hlPD of CFaI by CO-J laser radlatlon has been performed under cokton-free cond:tions_ Promment structures observed III MPA spectra have been identxf'ied as vlbratlon-rotation multiphoton resonances on the basis of their dependence on laser frequency and fIuence and the gas temperature Narrowing of the thermal rotational dzt+ibutlon was also accompbhed by coohng the CFsI in a molecular beam in order to study the purely Wbrationdl compensation of anharmonicity.
๐ SIMILAR VOLUMES
The fragmentation behavior of CF3I in the resonance-enhanced multiphoton ionization (REMPI) spectrum through the electronic C state is investigated. Rotational bandshape simulations are used to establish the existence of an inhomogeneous predissociation of the resonant intermediate state. Difference
The multiphoton decomposition of CF31 with a pulsed C02 laser has been studied at incident fluences of 0.6 and 1.2 J/cm2. The effect of pressure on the reaction probability for dissociation of CF3I was measured in the presence of added isobutane, Ar and C02. In the experiments with isobutane, the CF
We have studied the resonant multiphoton ionization of hydrogen in a three-photon excitation, one-photon ionization scheme. Superimposed on the ionization process we find a dissociation mechanism which manifests itself in a strong H+ signal. The ratio of H+ to Hi stgnals depends on the vibrational q
The UV absorption spectrum and the dissociation rate of CF$ in Ar have been measured in shock waves. For [Ar] = 1.7 X 10m5 mol cmW3, the dissociation rate constant k/[Ar] = 1.5 x 1016 exp(-168 kJ moi-'/RT) cm? mol -l s-l\_ The absorption cross section 0 = aF" [tgh(ee/ZT)] 8, = 409 K, A"o = 2370 cm-l