Accession Number:

ADA050192

Title:

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

Descriptive Note:

Interim rept.

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA IVAN A GETTING LABS

Report Date:

1978-01-27

Pagination or Media Count:

40.0

Abstract:

Rates of HFv 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. cmmol-sec at 295 K to 10 to the 14th power cu. cmmol-sec at 200 K. The removal of HFv 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 HFv 3, i.e., reaction to form H2 F or deactivation to HFv 0, 1, or 2 with or without exchange of the F atom. The several possibilities are discussed and compared to theoretical calculations.

Subject Categories:

  • Lasers and Masers
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE