Accession Number:

ADA445753

Title:

State-to-State Thermal/Hyperthermal Collision Dynamics of Atmospheric Species

Descriptive Note:

Final rept. 1 Sep 2002-1 Sep 2005

Corporate Author:

COLORADO UNIV AT BOULDER

Personal Author(s):

Report Date:

2004-01-09

Pagination or Media Count:

10.0

Abstract:

Direct absorption IR laser methods developed under AFOSR support have been used to study state-to-state reactive scattering dynamics under single collision conditions. Efforts over this past granting period have led to significant progress in several areas i H atom abstraction dynamics in prototypic atom diatom e.g. X HD -- Hxv,J atom triatom e.g. X H2O -- Hxv,J OHv,N and atom polyatom e.g. X CH3-CH3 reaction systems, ii application of novel slit discharge concentration modulation methods for ultrasensitive IR laser based detection of cold ions in supersonic jets, iii stereodynamics of aligned collisions in rovibrationally state-selected molecules in crossed jets, iv development of high sensitivity IR absorption methods to hyperthermal inelastic and reactive scattering at the gas-liquid interface, which indicate the presence of surprisingly hot, highly non-statistical product state distributions as well as direct evidence for both direct and trappingdesorption reaction channels.

Subject Categories:

  • Lasers and Masers
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE