... Let us consider a molecule AB in its vibronic ground state. Electrons of increasing energy impinging on the molecule can induce a dissociation following process (2). During this Franck-Condon vibronic transition the ...
... Published in: Electronic and Atomic Collisions. Abstract of papers. VIII ICPEAC, Belgrad, 1973, Volume 1 (1973), pp. 242-425 Status: Postprint (Author’s version) Fig.1:Kinetic energy distribution of O + from ...
... The present dissociativeionization work on CH 4 (CD 4 ) producing H + (D + ) has been examined by electron impact using ion energy analysis. The instrument used in this work is fully described elsewhere ...
... 5.1. The C + dissociativeionization channel The lowest onset for the appearance of C + is measured at 21.16 ± 0.30 eV. The dependence of this critical energy upon the C + ion initial transla-tional energy ...
... The dissociativeionization work uses mono-chromatized synchrotron radiation from the Berlin storage ring ...record ionization efficiency curves for energy- selected ...
... in agreement with earlier investigations [1,2]. Furthermore, neither translational energy nor internal energy are carried by the fragments at threshold. Above the onset, the excess energy is entirely converted into at ...
... As shown by the occurrence of a peak at 14.5 eV in the first derivative of the ionization efficiency curve of CS + (fig. 2a), the lowest threshold corresponds to an ion-pair, whereas at 14.7 eV a ...
... THE C + ION FORMATION R. LOCHT, J.M. DÜRER Institut de Chimie, Sart-Tilman par B-4000 Liège 1, Belgium The interest of a study of the dissociativeionization of CO is twofold.(i) This molecule is ...
... The dissociativeionization of CO 2 in the valence-shell ionization region has been investigated by almost all the techniques available ...the dissociativeionization of CO 2 using ...
... the dissociativeionization as well as the dissociative excitation of methane by electron and photon impact was extensively ...by dissociative excitation were ...
... Later, a few groups performed angular dependent ion energy analysis, the anisotropy (or isotropy) of the distributions being related to the symmetry of the decomposing ionic states. Apart from the metastable ...
... This dissociativeionization limit could not be detected in the ionization efficiency curve of N + taken at zero volt retarding potential, as shown in ...direct ionization, does not shift as a ...
... For the N 2+ ions formed by dissociativeionization of N 2 , fig. 1 shows the ion energy distribution as observed for different electron energies ranging from 60—100 eV. Peak maxima are measured at thermal ...
... + . In order to extend the available information, we have studied the kinetic energy distributions of the N + fragments from the dissociativeionization of N 2 by electron impact. In an ion-source, N 2 is ...
... 3.1.2. Dissociation channel CO → e − O + + C - and O + + C The kinetic energy distribution of the O + ions produced by dissociativeionization by electron impact on CO only shows a narrow and nearly ...
... By using NeI radiation instead of the HeI resonance line, changes could occur in the photoelectron spectrum which could account for the differences observed in the ion energy distributions. In the particular case of N 2 ...
... The N 2 O molecule has been the subject of many investigations during the last few years. BERKOWITZ (1) made a detailled photoionization study of the four dissociation channels. BEAR (2) and NENNER (3) performed the ...
... The experimental set-up is described elsewhere (5). Ion energy distributions are measured by recording the first differentiated retarding potential curve. Furthermore, in the present wo[r] ...
... translational energy. Several appearance energies are observed in the first differentiated ionization efficiency curves of H + (D + ). The lowest onset is measured at 18.9 ± 0.2 eV for zero kinetic energy protons. ...
... 共Received 24 March 2005; accepted 23 May 2005; published online 9 August 2005兲 The molecular dynamics with quantum transitions 共MDQT兲 method is applied to study the fragmentation dynamics of neon clusters following ...