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Table 2

Theoretical and experimental energies (Kramida et al. 2015) (in eV) for the terms of target states of O4+ and O5+ relative to the ground state in the calculations of PI of O3+ and O4+.

O4+ O5+


No. State This work Expt. State This work Expt.

1 1s22s2 0.0 0.0 1s22s 0.0 0.0
2 1s22s2p 3P◦ 10.147 10.196 1s22p 2P◦ 12.091 11.993
3 1s22s2p 1P◦ 19.761 19.688 1s23s 79.283 79.355
4 1s22p2 26.449 26.502 1s23p 2P◦ 82.556 82.503
5 1s22p2 28.739 28.730 1s23d 83.507 83.647
6 1s22p2 35.799 35.696 1s24s 105.64 105.72
7 1s22s3s 67.688 67.816 1s24p 2P◦ 106.97 107.05
8 1s22s3s 69.477 69.589 1s24d 107.40 107.48
9 1s22s3p 1P◦ 71.865 72.013 1s24f 2F◦ 107.42 107.50
10 1s22s3p 3P◦ 72.173 72.268 1s2s2 551.10
11 1s22s3d 74.460 74.486 1s2s(3S)2p 4P◦ 554.76 554.24
12 1s22s3d 75.973 75.955 1s2s(3S)2p 2P◦ 562.99 562.59
13 1s2s22p 3P◦ 549.94 1s2p2 567.81 567.23
14 1s2s(3S)2p2(3P) 552.16 1s2s(1S)2p 2P◦ 568.88 568.21
15 1s2s22p 1P◦ 554.80 1s2p2 573.37 572.50
16 1s2s(3S)2p2(1D) 562.62 1s2p2 576.21 575.76
17 1s2s(1S)2p2(3P) 562.76 1s2p2 582.83 582.30
18 1s2s(3S)2p2(1S) 568.26
19 1s2s(1S)2p2(1D) 569.33
20 1s2s(1S)2p2(3P) 570.48
21 1s2s(1S)2p2(1S) 575.00

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