Negative Ion Photodetachment as a Probe of the Transition State Region: The I + HI Reaction.

Abstract

The study of the transition state of bimolecular reactions using negative ion photodetachment is described. The I + HI reaction is used as an example of this method. The photoelectron spectrum of IHI(-) shows resolved vibrational features assigned to a progression in the antisymmetric stretch mode of the neutral IHI complex. Threshold photodetachment studies of this system at higher resolution show additional structure that arises from two sources: (1) resonances supported by the I + IHI potential energy surface and (2) transitions to nearly free internal rotor states of the IHI complex. The photoelectron spectrum of the cluster anion IDI(-)(N20) is also described.

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Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1991
Accession Number
ADA235297

Entities

People

  • Daniel Neumark

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemistry
  • Collisions
  • Dissociation
  • Dye Lasers
  • Dynamics
  • Electrons
  • Energy
  • Ionization
  • Kinetic Energy
  • Laser Dyes
  • Military Research
  • Photoelectron Spectra
  • Photoelectrons
  • Potential Energy
  • Spectra

Fields of Study

  • Chemistry
  • Physics

Readers

  • Molecular Photonics/Laser Physics
  • Quantum Chemistry

Technology Areas

  • Microelectronics