title: Energy Levels of Singly-Ionized Platinum.
abstract: The analysis of Pt II is extended by using accurate wavelength measurements by Sansonetti et al. Forty-three new even and 104 new odd levels have been found. The Slater-Condon parametric method is used for the interpretation of the 5d9, 5d86s, and 5d76s2low even configurations and the 5d8(7s+6d) high even configurations with root mean square deviations smaller than 80 cm-1. The importance of the 5d8-5d76score interaction in interpreting the even-parity levels is stressed.
authors.affiliation: Laboratoire Aimé Cotton, 1 Bât. 505, C.N.R.S. Π, Centre Universitaire, F-91405-ORSAY ( France ).
authors.forename: Jean
authors.initials: J
authors.lastname: Blaise
authors.affiliation: Laboratoire Aimé Cotton, 1 Bât. 505, C.N.R.S. Π, Centre Universitaire, F-91405-ORSAY ( France ).
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Wyart
keywords: atomic spectroscopy; electronic configurations; energy levels; platinum