Collisional and Dissociative Processes Involving Molecular Free Radicals

Abstract

A number of experimental studies of the dynamics of bimolecular and unimolecular collisional processes and spectroscopic studies involving molecular free radicals of importance in combustion and atmospheric chemistry have been carried out. These include study of the reaction of Cl atoms with small hydrocarbons, the formation of NCO in the CN + O2 reaction, predissociation of electronically excited NCO, and photodissociation of vibrationally excited halomethanes. The interaction of the HCO radical with Ar was probed through electronic spectroscopy of the weakly bound Ar-HCO complex. A search for the laser fluorescence excitation of the FCO radical was unsuccessful, and bands previously attributed by other workers to this species were definitively assigned to the CH2CFO radical.

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Document Details

Document Type
Technical Report
Publication Date
Jan 14, 1998
Accession Number
ADA344458

Entities

People

  • Paul J. Dagdigian

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Atmospheric Chemistry
  • Chemical Kinetics
  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemistry
  • Dissociation
  • Electronic States
  • Excitation
  • Fluorescence
  • Free Radicals
  • Hydrocarbons
  • Ionization
  • Laser Spectroscopy
  • Lasers
  • Photodissociation
  • Spectra
  • Spectroscopy

Fields of Study

  • Chemistry

Readers

  • Molecular Photonics/Laser Physics

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Microelectronics