Dynamics and mechanisms of hot chemistry stimulated by recoil methods. Progress report, March 1, 1977--February 28, 1978
Year: 1977
Type: report
Abstract: Evaluation of the nuclear recoil chemical activation process in cyclobutane-t and subsequent collisional energy transfer processes has shown: The average quanta of energy transferred from cyclobutane excited to vibrational energies near 100 kcal/mole upon collision is in the kcal/collision range, and also the hot tritium for hydrogen replacement reaction deposits about 46% of its kinetic energy into internal modes of the cyclobutane-t and the energy distribution of activated molecules is relatively independent of the composition of mixed bath systems. An evaluation of the average energy at which recoil stimulated, hot hydrogen replacement reaction in cyclohexane and n-butane occurs has been made as a function of added moderator. Calculated results indicate that the average reaction energy is relatively independent of composition over the range from 0 to 99% moderation with noble gases in well scavenged systems of moderate reactivity. Geometrical isomerization accompanying the gas phase chlorine atom replacement reaction in 2,3 dichlorohexafluoro-2-butene as a function of moderation has been investigated. Both a thermal or near thermal reaction path having a trans/cis product ratio of 1.3 and a high energy process which preferentially forms trans product from both cis and trans reactant are found.
DOI: 10.2172/5229022
Author: L. D. Spicer
Institution: University of Utah
Language: English
Subfield: Pharmaceutical Science
Domain: Life Sciences
Open Access status: gold
Funder: U.S. Department of Energy
OpenAlex ID: W2917602880