Kinetic Study of H + HF(v = 3); Kinetic Isotope Effect and Temperature Dependence

Abstract

Rates of HF(v = 3) removal by H and D atoms were measured between 200 and 295 K in a laser-induced fluorescence-discharge flow-tube apparatus. The removal rates by H atoms were found to increase from 6.3 x 10 to the 13th power cu. cm/mol-sec at 295 K to 10 to the 14th power cu. cm/mol-sec at 200 K. The removal of HF(v = 3) by D atoms is somewhat slower, but the removal rates have a similar negative temperature dependence. There are several mechanisms by which H atoms can remove HF(v = 3), i.e., reaction to form H2 + F or deactivation to HF(v = 0, 1, or 2) with or without exchange of the F atom. The several possibilities are discussed and compared to theoretical calculations.

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Document Details

Document Type
Technical Report
Publication Date
Jan 27, 1978
Accession Number
ADA050192

Entities

People

  • Jerry F. Bott
  • Raymond F. Heidner Iii

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Chemical Lasers
  • Coefficients
  • Collisions
  • Energy
  • Equations
  • Experimental Data
  • Fluorescence
  • Heat Of Activation
  • Hydrogen Fluoride Lasers
  • Laser Induced Fluorescence
  • Lasers
  • Low Temperature
  • Measurement
  • Partial Pressure
  • Potential Energy
  • Trajectories

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Directed Energy - Pulsed-Laser Deposition