Table 5
Energies (Ryd) of the S^+ Ground State and Selected (N + 1)-electron Bound and Resonance States, Compared to the S^2+ Ground State
Ionic State Present NIST Present NIST Overestimate
S^+ 3s^23p^3(^4S_3/2) 0.000 0.000 -1.630 -1.715 cdots
S^+ 3s3p^4(^2S_1/2) 1.455 1.092 -0.175 -0.623 +0.448
S^+ 3s3p^4(^2P_3/2) 1.488 1.326 -0.142 -0.389 +0.247
S^+ 3s3p^4(^2P_1/2) 1.493 1.329 -0.137 -0.386 +0.249
S^2+ 3s^23p^2(^3P_0) 1.630 1.715 0.000 0.000 cdots
S^+ 3s3p^33d(^4D_7/2) 1.951 cdots 0.321 cdots cdots
Note. The present theoretical energies for 3s-vacancy states, which are subject to relaxation effects, relative to the ground state of S2+, are overestimated by approx0.2-0.4 Ryd, as highlighted in boldfaced font.