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Table A.5

Comparison between available experimental values of the first few excited energy levels in Os I–IV and the HFR results obtained without scaling down the Slater integrals (SF = 1.00) and with a scaling factor of 0.85 (SF = 0.85).

Configuration J EExp (cm−1)a EHFR (cm−1)b ΔE (cm−1)c
SF = 1.00 SF = 0.85 SF = 1.00 SF = 0.85
Os I
5d66s2 4 0.00 0 0 0 0
5d66s2 2 2740.49 3834 3269 1094 529
5d66s2 3 4159.32 4468 4663 309 504
5d76s 5 5143.92 5940 4927 796 -217
5d66s2 1 5766.14 6623 6594 857 828
5d66s2 0 6092.79 7120 6975 1027 882
5d76s 4 8742.83 9757 8656 1014 -87
5d76s 2 10165.98 11879 11146 1713 980
5d76s 4 11030.58 13156 11586 2125 555
5d76s 3 11378.00 12850 11787 1472 409
5d76s 2 12774.38 14557 13356 1783 582
... ... ... ... ... ... ...
Os II
5d66s 9/2 0.00 0 0 0 0
5d66s 7/2 3593.15 3773 3871 180 278
5d66s 5/2 3928.94 4598 4372 669 443
5d66s 3/2 5592.05 6290 6089 698 497
5d66s 1/2 6636.57 7292 7238 655 600
5d66s 5/2 7891.93 7890 8941 -2 1049
5d66s 7/2 11459.90 13103 11640 1643 180
5d66s 5/2 11654.08 12671 12486 1017 832
5d66s 3/2 13136.61 13448 11373 311 -1764
5d66s 7/2 13203.88 15206 13260 2002 56
5d66s 5/2 13414.80 15296 14081 1881 666
... ... ... ... ... ... ...
Os III
5d6 4 0.00 0 0 0 0
5d6 3 3849.26 2119 4533 -1730 684
5d6 2 3993.38 4728 4395 735 402
5d56s 3 4578.41 4404 5838 -174 1260
5d6 1 6154.41 6838 6931 684 777
5d6 0 6316.98 7144 7069 827 752
5d6 4 12535.51 15120 12899 2584 363
5d6 2 15131.09 17398 16033 2267 902
5d6 5 15780.66 18650 16392 2869 611
5d6 6 16720.70 19582 17140 2861 419
5d6 3 17073.05 20200 18091 3127 1018
... ... ... ... ... ... ...
Os IV
5d5 5/2 0.00 0 0 0 0
5d5 5/2 15617.70 19743 15780 4126 162
5d5 7/2 19886.30 24106 20463 4220 577
5d5 3/2 20218.30 24467 20805 4249 587
5d5 5/2 20944.70 25035 21665 4090 720
5d5 11/2 21105.10 25168 21573 4063 468
5d5 9/2 21764.60 25898 22430 4133 665
5d5 1/2 22521.80 26780 23231 4258 709
5d5 7/2 25587.80 30351 26666 4763 1078
5d5 5/2 27067.50 32098 27962 5030 894
5d5 1/2 28517.70 33396 29848 4878 1330
... ... ... ... ... ... ...

Notes. a Experimental energy levels from Kramida et al. (2023) for Os I–III and from Ryabtsev et al. (1998) for Os IV.(b) This work.(c) ΔE = EHFREExp.

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