Vibrationally resolved inelastic scattering and charge transfer in H+-C2H4 collisions

Article abstract of DOI:10.1063/1.465230

Differential cross sections and time-of-flight spectra have been measured in a crossed molecular beam apparatus for inelastic scattering and charge transfer in collisions of 30 eV protons with ethylene.High resolution inelastic time-of-flight spectra reveal peaks corresponding to the fundamentals of at least two of the infrared active antisymmetric vibrational modes of ethylene.In the time-of-flight spectra of H atoms resulting from charge transfer energy loss, peaks corresponding to excitation of two electronic states of the ethylene molecular ion are resolved.The H-atom product angular distributions are consistent with a 2.0 eV potential well in the ground state potential energy surface of the charge transfer reaction.The observations for the antisymmetric vibrational modes are explained in terms of an ion-induced dipole mechanism.Excitation of the symmetric modes is attributed to a vibronic coupling mechanism.An appendix provides a detailed account of the vibronic distributions in idealized low energy, high symmetry collisions leading to stable C2H5⁺ complexes.

Full text of DOI:10.1063/1.465230

Vibrationally resolved inelastic scattering and charge transfer in H+–C2H4
collisions
N. Aristov, W. Maring, G. NiednerSchatteburg, J. P. Toennies, Y.N. Chiu, and H. Köppel
Citation: The Journal of Chemical Physics 99, 2682 (1993); doi: 10.1063/1.465230
View online: http://dx.doi.org/10.1063/1.465230
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/99/4?ver=pdfcov
Published by the AIP Publishing
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.247.166.234 On: Sat, 22 Nov 2014 15:41:06

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.247.166.234 On: Sat, 22 Nov 2014 15:41:06

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.247.166.234 On: Sat, 22 Nov 2014 15:41:06

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.247.166.234 On: Sat, 22 Nov 2014 15:41:06

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.247.166.234 On: Sat, 22 Nov 2014 15:41:06

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.247.166.234 On: Sat, 22 Nov 2014 15:41:06

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.247.166.234 On: Sat, 22 Nov 2014 15:41:06

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.247.166.234 On: Sat, 22 Nov 2014 15:41:06

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.247.166.234 On: Sat, 22 Nov 2014 15:41:06

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.247.166.234 On: Sat, 22 Nov 2014 15:41:06

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.247.166.234 On: Sat, 22 Nov 2014 15:41:06