Vibrationally resolved predissociation of the $c Π_{u}$ and $e Σ_{u}^{+}$ states of $H_{2}$ by flight-time-difference spectroscopy

1 January 1978

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 17 (1), 47-51
https://doi.org/10.1103/physreva.17.47

Abstract

The kinetic-energy distribution of H-H fragment pairs arising from dissociative charge-exchange collisions of 5-keV

H_{2}^{+}

ions was measured using a flight-time-difference method. The spectrum exhibits 13 discrete kinetic energies between 7 and 10.5 eV in the center-of-mass frame of the projectile. Predissociation of the

c {}^{3}Π_{u}

state by the repulsive

b {}^{3}Σ_{u}^{+}

state explains most of the structure observed. In addition, evidence is found for predissociation of the

e {}^{3}Σ_{u}^{+}

state.

Keywords

This publication has 14 references indexed in Scilit:

The electron energy dependence of the doppler profiles of the Balmer-α emission from H2, D2, CH4 and other simple hydrocarbons by electron impact
Chemical Physics, 1977
Dissociative excitation and ionisation in H 2 + — He collisions
The European Physical Journal A, 1977
Predissociation of the $c {}^{3}Π_{u}$ State of $H_{2}$
Physical Review Letters, 1977
Doppler profile measurements of balmer-α radiation by electron impact on H2
Chemical Physics, 1976
Very high resolution study of photoabsoprtion, photoionization, and predissociation in H2
The Journal of Chemical Physics, 1976
A study of the collisional dissociation of H₂⁺ions with a flight-time difference method
Journal of Physics B: Atomic and Molecular Physics, 1976
Dissociative excitation of H2: Spectral line shapes and electron impact cross sections of the Balmer lines
The Journal of Chemical Physics, 1976
On the dissociation of the H₂molecule following electron impact and leading to the obtaining of atomic hydrogen in n=3 levels
Journal of Physics B: Atomic and Molecular Physics, 1973
Dissociative Excitation of Molecular Hydrogen by Electron Impact
Physical Review A, 1972
Photodissociation of $H_{2}^{+}$ and $D_{2}^{+}$ : Experiment
Physical Review A, 1972

Cited by 24 articles

Vibrationally resolved predissociation of thecΠu3andeΣu+3states ofH2by flight-time-difference spectroscopy

Abstract

Keywords

Vibrationally resolved predissociation of the $c Π_{u}$ and $e Σ_{u}^{+}$ states of $H_{2}$ by flight-time-difference spectroscopy