Accession Number : ADA141196

Title :   Ion Photofragment Spectroscopy: Structure and Dissociation of Molecular Ions.

Descriptive Note : Final scientific rept. 15 Nov 80-28 Feb 84,


Personal Author(s) : Cosby,P C

PDF Url : ADA141196

Report Date : 05 Apr 1984

Pagination or Media Count : 131

Abstract : Photodissociation of the positive molecular ions of NO, OH, SO, SH, oxygen, and methyliodide and the doubly-charged molecular ion of nitrogen is observed at visible and ultraviolet laser wavelengths using ion photofragment spectroscopy. The wavelength dependence for the production of photofragments from each of these species reflects highly structured absorption spectra of electronic transitions into predissociated excited states lying in the region of their lowest energy dissociation asymptotes. The absorption spectra, coupled with kinetic energy analysis of the photofragments produced in the dissociations, allow identification of the absorbing and dissociating states in these ions and determination of their molecular constants. (Author)

Descriptors :   *Molecular ions, *Photodissociation, *Photofragment spectroscopy, Visible spectra, Ultraviolet lasers, Cations, Nitrogen, Nitrogen oxides, Hydroxides, Sulfur oxides, Oxygen, Absorption spectra, Kinetic energy, Excitation, Energy transfer

Subject Categories : Radiation and Nuclear Chemistry
      Atomic and Molecular Physics and Spectroscopy
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE