The 5s25p4–5s5p5 transitions of Cs iv, Ba v, and La vi were observed with a sliding spark discharge and a 10.7-m normal-incidence spectrograph. The region of observation was 539–1282 Å. The energy parameters derived from least-squares fits to the experimental levels are compared with Hartree–Fock (HF) calculations. The fitted/HF ratios for the 5s25p4 configurations of the ions Te i–La vi are compared with the fitted/HF ratios for the 4s24p4 configurations of the ions Se i–Mo ix.
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Value for Eav is that obtained by diagonalizing the energy matrix with the HF parameters, 3P2 level set at zero.
Results for Xe iii from Ref. 9 The rms error in Eav is from the present set of least-squares calculations.
Table 6
Fitted/HF Ratios for F2(5p5p) and ζ5p, Values of the Effective Interaction Parameter α(5p5p) (in cm−1), and Mean Errors Δ (in cm−1) for the 5s25p4 Configurations of Telluriumlike Ions from Te i to La vi
Ion
F2(5p5p)
ζ5p
α(5p5p)
Δ
Te i
0.786 ± 0 008
1.166 ± 0 031
−82 ± 27
103
I ii
0.798 ± 0 008
1.178 ± 0 021
−113 ± 28
106
Xe iii
0.805 ± 0 009
1.182 ± 0 016
−141 ± 32
116
Cs iv
0.811 ± 0 010
1.182 ± 0 012
−175 ± 37
132
Ba v
0.814 ± 0 011
1.181 ± 0 010
−221 ± 44
155
La vi
0.816 ±0 013
1.179 ± 0 009
−299 ± 58
199
Table 7
Fitted/HF Ratios for F2(4p4p) and ζ4p, Values of the Effective Interaction Parameter α(4p4p) (in cm−1), and Mean Errors Δ (in cm−1) for the 4s24p4 Configurations of Seleniumlike Ions from Se i to Mo ix
J. Reader, unpublished calculations (1982).
J. E. Hansen and W. Persson, J. Opt. Soc. Am. 64, 696 (1974).
R. Zalubas, J. Reader, and C. H. Corliss, J. Opt. Soc. Am. 66, 35 (1976). Ref. 15.
Table 8
8 Percentage Compositions for the 5s25p4 Levels of Te i, I ii, Xe iii, Cs iv, Ba v, and La vi
Negative eigenvector components are preceded by a minus.
Table 9
Differences (O − C) between Observed Level Values and Those Calculated with the Fitted Values of the Parameters for the 5s25p4 Configurations of Telluriumlike Ions from Te i to La vi (in cm−1)
3P2
3P1
3P0
1D2
1S0
Te i
33
45
−86
−3
10
I ii
50
28
−88
−5
15
Xe iii
67
10
−91
−9
22
Cs iv
85
−8
−94
−13
30
Ba v
105
−26
−100
−19
40
La vi
139
−50
−117
−29
57
Table 10
Energy Parameters and Mean Errors Δ of Least-Squares Fits for the 5s5p5 Configurations of Telluriumlike Ions from Xe iii to La vi (in cm−1)
Value for Eav is that obtained by diagonalizing the energy matrix with the HF parameters, 3P2 level set at zero.
Results for Xe iii from Ref. 9 The rms error in Eav is from the present set of least-squares calculations.
Table 6
Fitted/HF Ratios for F2(5p5p) and ζ5p, Values of the Effective Interaction Parameter α(5p5p) (in cm−1), and Mean Errors Δ (in cm−1) for the 5s25p4 Configurations of Telluriumlike Ions from Te i to La vi
Ion
F2(5p5p)
ζ5p
α(5p5p)
Δ
Te i
0.786 ± 0 008
1.166 ± 0 031
−82 ± 27
103
I ii
0.798 ± 0 008
1.178 ± 0 021
−113 ± 28
106
Xe iii
0.805 ± 0 009
1.182 ± 0 016
−141 ± 32
116
Cs iv
0.811 ± 0 010
1.182 ± 0 012
−175 ± 37
132
Ba v
0.814 ± 0 011
1.181 ± 0 010
−221 ± 44
155
La vi
0.816 ±0 013
1.179 ± 0 009
−299 ± 58
199
Table 7
Fitted/HF Ratios for F2(4p4p) and ζ4p, Values of the Effective Interaction Parameter α(4p4p) (in cm−1), and Mean Errors Δ (in cm−1) for the 4s24p4 Configurations of Seleniumlike Ions from Se i to Mo ix
J. Reader, unpublished calculations (1982).
J. E. Hansen and W. Persson, J. Opt. Soc. Am. 64, 696 (1974).
R. Zalubas, J. Reader, and C. H. Corliss, J. Opt. Soc. Am. 66, 35 (1976). Ref. 15.
Table 8
8 Percentage Compositions for the 5s25p4 Levels of Te i, I ii, Xe iii, Cs iv, Ba v, and La vi
Negative eigenvector components are preceded by a minus.
Table 9
Differences (O − C) between Observed Level Values and Those Calculated with the Fitted Values of the Parameters for the 5s25p4 Configurations of Telluriumlike Ions from Te i to La vi (in cm−1)
3P2
3P1
3P0
1D2
1S0
Te i
33
45
−86
−3
10
I ii
50
28
−88
−5
15
Xe iii
67
10
−91
−9
22
Cs iv
85
−8
−94
−13
30
Ba v
105
−26
−100
−19
40
La vi
139
−50
−117
−29
57
Table 10
Energy Parameters and Mean Errors Δ of Least-Squares Fits for the 5s5p5 Configurations of Telluriumlike Ions from Xe iii to La vi (in cm−1)