Electron attachment to fluorocarbon radicals
Abstract
Thermal electron attachment rate constants for a series of small fluorocarbon radicals (CF2, C2F3, 1-C3F7, 2-C3F7, C3F5, CF3O) were measured from 300 to 600 K using the variable electron and neutral density attachment mass spectrometry method. With the exception of CF2, for which no attachment was observed, all species exclusively underwent dissociative attachment to yield F−. The magnitude and temperature dependences of the rate constants varied significantly between species; however, attachment was in all cases inefficient, never exceeding 2% of the calculated collisional value. The data are interpreted and extrapolated to conditions inaccessible to the experiment using a kinetic modeling approach to the electron attachment process.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 07, 2012
- Source ID
- 10.1063/1.4768466
Entities
People
- Albert A Viggiano
- Nicholas S Shuman
- Thomas M Miller
Organizations
- Air Force Office of Scientific Research
- Air Force Research Laboratory