Accession Number:

ADA191264

Title:

Energy Transfer Processes in Free Radicals: A Collaborative Experimental and Theoretical Investigation.

Descriptive Note:

Final rept. 19 Dec 84-18 Dec 87,

Corporate Author:

JOHNS HOPKINS UNIV BALTIMORE MD

Personal Author(s):

• Alexander, Millard H.
• Dagdigian, Paul J.

Report Date:

1988-01-20

Pagination or Media Count:

15.0

Abstract:

Rotationally and electronically inelastic collisions in small molecules and free radicals have been studied with both initial and final state resolution in a joint theoretical-experimental project. Particular emphasis has been placed on diatomic free radicals of importance in combustion environments. State-to-state cross sections for transitions within the A2Pi and to the X2epsilom state of the CN radical in collisions with argon have been measured in a discharge-flow technique. Experimental investigation on the mechanism for the dependence of chemical reactivity on the fine-structure level of a reactant atomic multiplet has also been carried out. Keywords Collisional energy transfer, Free radicals, Optical-optical double resonance, Collision-induced electronic transitions, Chemical reactions, Spin-orbit effects.

Descriptors:

• *ENERGY TRANSFER
• *FREE RADICALS
• ARGON
• CHEMICAL REACTIONS
• COLLISIONS
• COMBUSTION
• CROSS SECTIONS
• ELASTIC PROPERTIES
• EXPERIMENTAL DESIGN
• MOLECULES
• ORBITS
• REACTIVITIES
• RESOLUTION
• SPINNING(MOTION)
• THEORY

Subject Categories:

• Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE