Rydberg states and the observes spectrum ArH

Michael Berman, Uzi Kaldor, J. Shmulovich, S. Yatsiv

Research output: Contribution to journalArticlepeer-review

Abstract

The ArH emission at 7670 Å first observed by Johns in 1970, is produced by X-ray irradiation of Ar gas mixtures with H2, H2O, CH4 or CH3OH. To assign this transition, potential curves for the Rydberg states of ArH+ converging to the ground state of ArH+ are calculated by a fast method, whereby Hartree-Fock electron affinities of ArH+. are added to the ArH+ potential. Results with and without semi-empirical correlation corrections are presented. The 7670 /rA transition is shown to be G 2Π → A 2Σ with the lower state predissociated by vibronic interaction with the continuum of the ArH around state.

Original languageEnglish
Pages (from-to)165-173
Number of pages9
JournalChemical Physics
Volume63
Issue number1-2
DOIs
StatePublished - 1 Dec 1981

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