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

PDF Url : ADA191264

Report Date : 20 Jan 1988

Pagination or Media Count : 15

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