Marked differences in the 3p photoabsorption between the Cr and Mn⁺ isoelectronic pair: reasons for the unique structure observed in Cr
Cooper, J., Clark, C., Cromer, C., Lucatorto, T., Sonntag, B., Kennedy, Eugene T.ORCID: 0000-0002-0710-5281 and Costello, John T.ORCID: 0000-0003-4677-9999
(1989)
Marked differences in the 3p photoabsorption between the Cr and Mn⁺ isoelectronic pair: reasons for the unique structure observed in Cr.
Physical Review A, 39
(11).
pp. 6074-6077.
ISSN 0556-2791
Chromium is the only member of the transition-group elements with a well developed Rydberg structure appearing in its 3p-absorption spectrum. New high-resolution measurements of Mn, Mn+, and Cr have revealed weak Rydberg structure in Mn+ and an analysis of the data shows that the anomalous Cr 3p absorption spectra is due to a unique relationship between its energy levels, and not to the previously supposed fact that Cr has an unpaired 4s electron.