Abstract

The line 4156 Å is not seen in the beam-foil spectrum of Li⁺. After a brief review of the Li⁺ spectrum intended to clarify confusion in the literature, evidence is assembled to support the view that this line has been incorrectly classified as 4 ¹P∘ → 3 ¹S. A calculation of Edlén and Löfstrand [ J. Phys. B 3, 1380 ( 1970)] is revised to predict higher n¹P∘ levels, and some identifications of lines observed in beam-foil spectroscopy are reported. The experimental estimate of the ionization potential of Li⁺ done by Herzberg and Moore [ Can. J. Phys. 37, 1293 ( 1959)], which depended on the 4 ¹P∘ level, is revised to 610 077.8 ± 4.5 cm⁻¹.

© 1984 Optical Society of America

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