Two-photon photoelectron spectrum of methyl iodide through a dissociative intermediate state
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- Two-photon photoelectron spectrum of methyl iodide through a dissociative intermediate state
- Schultz, Thomas; Fischer, I
- PHOTODISSOCIATION DYNAMICS; MULTIPHOTON IONIZATION; 2-PHOTON IONIZATION; ENERGY; CH3I; SPECTROSCOPY; MOLECULES; ENHANCEMENT; LIFETIMES
- Issue Date
- AMER CHEMICAL SOC
- JOURNAL OF PHYSICAL CHEMISTRY A, v.101, no.28, pp.5031 - 5034
- The two-photon photoelectron spectrum of methyl iodide was recorded in a magnetic bottle time-of-flight spectrometer. As absorption of the first photon is resonant with the dissociative A-state continuum of methyl iodide, the experiment corresponds to a bound-free-bound transition. A progression in the C-I stretching vibration is observed, which corresponds, in a simplified picture, to the dissociation coordinate. The results agree well with recently published two-photon ZEKE spectra of CH3I. This similarity has impact on an ongoing discussion about discrepancies between calculated and measured intensities in two-photon ionization spectra.
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