Associative and dissociative electron attachment by SF6 and SF5Cl

Article abstract of DOI:10.1063/1.454646

Electron attachment by SF6 and SF5Cl in the energy range 0-20 eV has been studied in a beam experiment at room temperature.At low energies ( ca. 0 eV) electron attachment to SF6 yields the well known parent anion SF6^-* (associative attachment) and SF5^- (dissociative attachment), while other negative ion fragments (F^-, F2^-, SF2^-, SF3^-, and SF4^-) are generated with comparably low cross sections from various resonances at higher energies.In contrast to that, negative ion formation in SF5Cl is dominated by dissociative channels (F^-, Cl^-, FCl^-, and SF5^-) and only a weak SF5Cl^- signal is observed.A time-of-flight analysis of the ionic fragments reveals that the decomposition of all resonances is characterized by a low translational excess energy relase indicating effective energy randomization in the parent ion prior to dissociation.The present results are compared with negative ion formation in halogenated hydrocarbons.

Full text of DOI:10.1063/1.454646

Associative and dissociative electron attachment by SF6 and SF5Cl
Marita Fenzlaff, Rolf Gerhard, and Eugen Illenberger
Citation: J. Chem. Phys. 88, 149 (1988); doi: 10.1063/1.454646
View online: http://dx.doi.org/10.1063/1.454646
View Table of Contents: http://jcp.aip.org/resource/1/JCPSA6/v88/i1
Published by the American Institute of Physics.
Additional information on J. Chem. Phys.
Journal Homepage: http://jcp.aip.org/
Journal Information: http://jcp.aip.org/about/about_the_journal
Top downloads: http://jcp.aip.org/features/most_downloaded
Information for Authors: http://jcp.aip.org/authors
Downloaded 25 Nov 2012 to 130.63.180.147. Redistribution subject to AIP license or copyright; see http://jcp.aip.org/about/rights_and_permissions

Downloaded 25 Nov 2012 to 130.63.180.147. Redistribution subject to AIP license or copyright; see http://jcp.aip.org/about/rights_and_permissions

Downloaded 25 Nov 2012 to 130.63.180.147. Redistribution subject to AIP license or copyright; see http://jcp.aip.org/about/rights_and_permissions

Downloaded 25 Nov 2012 to 130.63.180.147. Redistribution subject to AIP license or copyright; see http://jcp.aip.org/about/rights_and_permissions

Downloaded 25 Nov 2012 to 130.63.180.147. Redistribution subject to AIP license or copyright; see http://jcp.aip.org/about/rights_and_permissions

Downloaded 25 Nov 2012 to 130.63.180.147. Redistribution subject to AIP license or copyright; see http://jcp.aip.org/about/rights_and_permissions

Downloaded 25 Nov 2012 to 130.63.180.147. Redistribution subject to AIP license or copyright; see http://jcp.aip.org/about/rights_and_permissions

Downloaded 25 Nov 2012 to 130.63.180.147. Redistribution subject to AIP license or copyright; see http://jcp.aip.org/about/rights_and_permissions