Vibrational relaxation in ozone recombination Article

cited authors

  • Joens, JA; Burkholder, JB; Bair, EJ

fiu authors

abstract

  • The time dependence of different components of the population of vibrationally excited ozone is measured during its formation by recombination, using changes in the shape of the vibronic absorption continuum as a probe. The time dependence of the population of every component of the total population is distinguished as either the ground state P000, states excited only in the bending mode P0x0, or states excited in the stretching mode P xxx. In addition, two levels of states excited in the stretching mode are distinguished. The results give values for the V→T relaxation of the bending mode k2 that are consistent with the values obtained in other laboratories. For relaxation by O2 in the absence of O 3†-O3† mode equilibration, the value obtained for the ratio of the rate constant k12, for V→V transfer from the stretching modes to bend, to k2 is α=0.4±0.1. Assuming that the newly recombined ozone initially relaxes through a quasicontinuum of levels, for which the rules for energy exchange are not known, it is shown that the observations from which a is derived set limits on the pathway through the quasicontinuum. © 1982 American Institute of Physics.

publication date

  • January 1, 1981

Digital Object Identifier (DOI)

start page

  • 5902

end page

  • 5916

volume

  • 76

issue

  • 12