Jump to main content
Jump to site search

Issue 18, 1995
Previous Article Next Article

Multiphoton ionisation spectroscopy of ethyl iodide and deuteriated ethyl iodide in the region of the 6s Rydberg transitions. Evidence of molecular field splitting of spin–orbit degenerate states

Abstract

The multiphoton ionisation spectra of ethyl iodide and its perdeuteriated analogue in the region of the first Rydberg transitions are reported and analysed. The observed vibronic structure has been completely accounted for by a small set of vibrational modes involving atoms adjacent to the iodine atom. The origins identified are more numerous than can be explained by a direct comparison with the spectra and electronic structure of methyl iodide and it has been shown that states degenerate in the C3v symmetry of methyl iodide are split by the Cs symmetry molecular field of ethyl iodide. It has also been shown that there is a reordering of the energies of related states between methyl and ethyl iodide and an explanation in terms of different extents of 6s/6p Rydberg state mixing has been proposed. The energies of states determined are compared with those reported for HI and CH3I and the spectra are compared with spectra of higher alkyl iodides.

Back to tab navigation

Article type: Paper
DOI: 10.1039/FT9959103083
Citation: J. Chem. Soc., Faraday Trans., 1995,91, 3083-3088

  •   Request permissions

    Multiphoton ionisation spectroscopy of ethyl iodide and deuteriated ethyl iodide in the region of the 6s Rydberg transitions. Evidence of molecular field splitting of spin–orbit degenerate states

    E. Lane, P. Brint, M. Tziraki and S. Couris, J. Chem. Soc., Faraday Trans., 1995, 91, 3083
    DOI: 10.1039/FT9959103083

Search articles by author

Spotlight

Advertisements