Accession Number:

AD0419384

Title:

(No title).

Descriptive Note:

Technical rept.,

Corporate Author:

WASHINGTON UNIV SEATTLE

Personal Author(s):

Report Date:

1963-01-06

Pagination or Media Count:

1.0

Abstract:

The study of collisional transitional probabili ties for the de-excitation by inert gases of chemically activated sec-butyl radicals, excited to internal energies in excess of 40 kcalmole, has been extended to H2, D2, N2, CO2, CH4, CD3F, CH3Cl and SF6. The diatomic gases display behavior similar to the rare gases, and on a preferred exponential model of collisional transition probabilities the average amount of energy transferred per collision is E expon approximately equal to 1.3 kcalmole. Hydrogen atom rupture from chemically activated ethyl-d1 radicals has been studied and is compared with a similar reaction of ethyl-d3 radicals. The activation reactions were D atom addition to ethylene or to trans-ethylene-d2. A very large normal statistical intermolecular secondary kinetic isotope effect of approximately greater than D atom substituent was found. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE