First Spectroscopic Observation of the $C {}^{2}Π_{u}$ Excited State of $H_{2}^{+}$

Publisher Website

2 January 1984

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

Vol. 52 (1) , 26-28
https://doi.org/10.1103/physrevlett.52.26

Abstract

The translational-energy spectroscopy is used to search for the first transitions from the

X {}^{2}Σ_{g}

ground state of

H_{2}^{+}

to bound excited electronic states. Electron impact is used to create the

H_{2}^{+}

ions from C

H_{4}

. It is known that electron impact on C

H_{4}

creates

H_{2}^{+}

ions highly rwotationally excited. A transition is observed centered at 10.2 eV. The observed peak is assigned to the optically allowed transitions

X {}^{2}{Σ_{g}}^{+} \to C {}^{2}Π_{u}

.

Keywords

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