ORBi: Locht Robert - Dissociative Autoionization as a Mechanism for the Proton Formation from Methane and Methane-d4 by low energy Electron Impact.

Reference : Dissociative Autoionization as a Mechanism for the Proton Formation from Methane and Met...


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/223

Title :	Dissociative Autoionization as a Mechanism for the Proton Formation from Methane and Methane-d4 by low energy Electron Impact.
Language :	English
Alternative title :	[fr] L'autoionisation dissociative comme mécanisme de formation du proton à partir du Méthane et du Méthane-d4 par impact d'électrons de faible énergie.
Author, co-author :	Locht, Robert [Université de Liège - ULg > Département de Chimie (Faculté des sciences) > Laboratoire de Dynamique Moléculaire (Sciences) > >]
	Olivier, J. L. [ > > ]
	Momigny, J. [ > > ]
Publication date :	1979
Journal title :	Chemical Physics
Publisher :	Elsevier Science
Volume :	43
Pages :	425-432
Audience :	International
ISSN :	0301-0104
City :	Amsterdam
Country :	The Netherlands
Keywords :	[en] Electron impact ; Kinetic energy distribution ; Appearance energy ; Dissociative autoionization ; H+/CH4 ; D+/CD4
Abstract :	[en] The ion energy distribution and the electroionization efficiency curves of H+ and D+ from methane and methane-d4 have been examined. The existence of thermal ions is unambiguously evidenced and the two lowest appearance thresholds of H+ are measured at (21.3+/-0.3) eV and (22.17+/-0.1) eV. At both energies the protons have to be formed through dissociative autoionization. The present results closely parallel those of the dissociative excitation experiments on methane. The Jortner-Rice model for dissociation of polyatomic molecules is invoked to account for both the appearance of H+ and high-Rydberg H atoms from CH4.
Research units :	Laboratoire de Dynamique Moléculaire
Funders :	FRFC
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/223
Commentary :	- Printed version of reprint available on request - Version imprimée du tiré-à-part disponible sur demande

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