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Table 4

Level energies (Ryd) of Fe21+ from different calculations, along with the compilation of NIST v4.

ID Level AS NIST MCDFa ID Level AS NIST MCDFa ID Level AS NIST MCDFa
1 2s22p   2P1/2 0 0 0.0000 69 2p23p   4D1/2 84.5624 84.4349 137 2s2p4p   4D3/2 104.4113 104.1392
2 2s22p   2P3/2 1.0603 1.0777 1.0749 70 2s2p3d   2D3/2 84.5817 83.2350 84.4171 138 2s2p4p   4S3/2 104.5214 104.2467
3 2s2p2   4P1/2 3.6179 3.6865 3.6715 71 2s2p3d   2D5/2 84.7042 84.4930 84.5368 139 2s2p4s   4P5/2 104.6367 104.4038
4 2s2p2   4P3/2 4.1160 4.1936 4.1739 72 2p23s   2P3/2 84.7790 84.7350 140 2s2p4p   4P1/2 104.6684 104.4069
5 2s2p2   4P5/2 4.6268 4.6772 4.6592 73 2s2p3d   2P1/2 84.8978 84.7374 141 2s2p4p   4D5/2 104.6745 104.4069
6 2s2p2   2D3/2 6.7138 6.7097 6.7573 74 2s2p3d   2P3/2 84.9134 83.5450 84.7548 142 2s2p4p   2P1/2 104.7030 104.4770 104.4356
7 2s2p2   2D5/2 6.9224 6.9184 6.9597 75 2p23p   4D3/2 85.0519 84.9179 143 2s2p4p   2D3/2 104.7944 104.5590 104.5288
8 2s2p2   2P1/2 7.7937 7.7790 7.8543 76 2p23p   2S1/2 85.0774 84.9893 144 2s2p4s   2P3/2 104.8556 104.6279
9 2s2p2   2S1/2 8.9126 8.9154 8.9875 77 2p23p   4P3/2 85.4102 85.2964 145 2s2p4d   4F3/2 104.8838 104.5975
10 2s2p2   2P3/2 9.0649 9.0427 9.1189 78 2p23p   4D5/2 85.4840 85.3815 146 2s2p4d   4F5/2 104.9892 104.7230 104.7029
11 2p3   4S3/2 11.3938 11.4428 11.4835 79 2p23s   2D5/2 85.5691 85.5353 147 2s2p4d   4P5/2 105.1786 104.8957
12 2p3   2D3/2 12.7219 12.7223 12.8095 80 2p23p   4P1/2 85.6311 85.5281 148 2s2p4d   4F7/2 105.2299 104.9450
13 2p3   2D5/2 13.0256 12.9999 13.0827 81 2p23p   4P5/2 85.6854 85.5701 149 2s2p4d   4D3/2 105.2456 105.0330 104.9663
14 2p3   2P1/2 14.3269 14.3035 14.4203 82 2p23s   2D3/2 85.7357 85.7201 150 2s2p4d   4D1/2 105.2721 104.9952
15 2p3   2P3/2 14.8546 14.8329 14.9376 83 2p23p   2D3/2 85.8232 85.7121 151 2s2p4f   4G5/2 105.2994 104.9986
16 2s23s   2S1/2 74.0596 73.9173 84 2p23p   4D7/2 85.9122 85.7926 152 2s2p4f   4D7/2 105.3225 105.0197
17 2s23p   2P1/2 75.7060 75.5693 85 2p23d   4F3/2 86.2029 86.0427 153 2s2p4p   4P3/2 105.3669 105.1482
18 2s23p   2P3/2 76.0015 75.8716 86 2p23p   4S3/2 86.3421 86.2111 154 2s2p4p   4D7/2 105.3806 105.1590
19 2s2p3s   4P1/2 77.3238 77.2006 87 2p23p   2D5/2 86.4269 86.3172 155 2s2p4d   2D3/2 105.3863 105.1110
20 2s23d   2D3/2 77.5321 77.4390 77.3765 88 2p23d   4F5/2 86.4297 86.2656 156 2s2p4p   4P5/2 105.4009 105.1821
21 2s2p3s   4P3/2 77.6028 77.4768 89 2p23p   2P3/2 86.4414 86.3180 157 2s2p4d   2F5/2 105.4523 105.3240 105.1722
22 2s23d   2D5/2 77.6273 77.5210 77.4663 90 2p23p   2P1/2 86.7021 86.6090 158 2s2p4p   2P3/2 105.4671 105.2461
23 2s2p3s   2P1/2 78.2248 78.1605 91 2p23d   4F7/2 86.8421 86.7002 159 2s2p4f   4F3/2 105.5584 105.2649
24 2s2p3s   4P5/2 78.3315 78.2274 92 2p23d   2P3/2 86.8509 86.7206 160 2s2p4f   4G7/2 105.5734 105.2744
25 2s2p3p   4D1/2 78.7826 78.6446 93 2p23d   4D1/2 86.9166 86.8019 161 2s2p4f   4D5/2 105.5769 105.2809
26 2s2p3s   2P3/2 79.0038 78.9506 94 2p23d   4D5/2 86.9225 86.7780 162 2s2p4f   4G9/2 105.5812 105.2812
27 2s2p3p   4D3/2 79.0315 78.8880 95 2p23p   2F5/2 87.1006 87.0175 163 2s2p4p   2D5/2 105.6051 105.4045
28 2s2p3p   2P3/2 79.3539 79.1710 79.2392 96 2p23d   4D7/2 87.1807 87.0348 164 2s2p4f   2F5/2 105.6399 105.3291
29 2s2p3p   2P1/2 79.4356 78.2230 79.3193 97 2p23d   4F9/2 87.2052 87.0496 165 2s2p4f   2G7/2 105.6411 105.3407
30 2s2p3p   4D5/2 79.4736 79.3473 98 2p23d   4D3/2 87.2133 87.0765 166 2s2p4p   2S1/2 105.7184 105.5042
31 2s2p3p   4P1/2 79.6472 79.5906 99 2p23d   2F5/2 87.2391 87.0956 167 2s2p4d   4F9/2 105.9131 105.6748
32 2s2p3p   2D3/2 79.8289 79.6400 79.7219 100 2p23p   2F7/2 87.2453 87.1529 168 2s2p4d   4D7/2 105.9815 105.8710 105.7483
33 2s2p3p   4D7/2 80.1306 80.0262 101 2p23p   2D3/2 87.4384 87.3288 169 2s2p4d   4D5/2 106.0086 105.8710 105.7785
34 2s2p3p   4P3/2 80.1878 80.1167 102 2p23s   2S1/2 87.5428 87.5069 170 2s2p4d   4P3/2 106.0348 105.8077
35 2s2p3p   4P5/2 80.3448 80.2814 103 2p23p   2D5/2 87.5843 87.4601 171 2s2p4d   4P1/2 106.0445 105.8212
36 2s2p3p   4S3/2 80.3676 80.2813 104 2p23d   4P5/2 87.6294 87.4803 172 2s2p4d   2D5/2 106.1261 105.8070 105.8957
37 2s2p3d   4F3/2 80.4412 80.2645 105 2p23p   2P1/2 87.7101 87.5900 173 2s2p4d   2P3/2 106.2272 105.9998
38 2s2p3d   4F5/2 80.6206 80.4371 106 2p23d   4P3/2 87.7533 87.6056 174 2s2p4d   2F7/2 106.3120 106.1530 106.0809
39 2s2p3p   2D5/2 80.7846 80.6020 80.7160 107 2p23d   2P1/2 87.7737 87.6772 175 2s2p4f   4F7/2 106.3383 106.0936
40 2s2p3d   4F7/2 80.9030 80.7750 80.7167 108 2p23d   4P1/2 87.8428 87.7002 176 2s2p4f   4F9/2 106.3419 106.0959
41 2s2p3d   4P5/2 81.0112 80.8660 80.8151 109 2p23d   2F7/2 87.8895 87.7481 177 2s2p4f   4F5/2 106.3576 106.1146
42 2s2p3p   2S1/2 81.0709 80.9981 110 2p23d   2D5/2 88.2743 88.0947 178 2s2p4d   2P1/2 106.3625 106.1395
43 2s2p3d   4D3/2 81.0919 80.9390 80.9045 111 2p23d   2D3/2 88.2917 88.1252 179 2s2p4f   2F7/2 106.3803 106.1337
44 2s2p3s   2P1/2 81.0922 81.0242 112 2p23p   2P3/2 88.3428 88.2462 180 2s2p4f   4G11/2 106.3822 106.1341
45 2s2p3s   2P3/2 81.1217 81.0382 113 2p23d   2G7/2 88.4228 88.3161 181 2s2p4f   4D3/2 106.3931 106.1525
46 2s2p3d   4D1/2 81.1303 80.9930 80.9331 114 2p23d   2G9/2 88.5818 88.4689 182 2s2p4f   4D1/2 106.4193 106.1807
47 2s2p3d   2D3/2 81.4192 81.2526 115 2p23d   2D3/2 88.8144 88.7219 183 2s2p4f   2G9/2 106.4221 106.1708

Notes. 

(a)

MCDF calculation from the work of Jonauskas et al. (2006).

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