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Configuration | |  | |
Term | |  | |
J | |  | |
Level(cm-1) | |  | |
Ref. | |
 |
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4d4(a 5D)5s | a 6D | 1/2 | 0.00 | M52 |
| | 3/2 | 154.19 | M52 |
| | 5/2 | 391.99 | M52 |
| | 7/2 | 695.25 | M52 |
| | 9/2 | 1050.26 | M52 |
| | | | |
4d35s2 | a 4F | 3/2 | 1142.79 | M52 |
| | 5/2 | 1586.90 | M52 |
| | 7/2 | 2154.11 | M52 |
| | 9/2 | 2805.36 | M52 |
| | | | |
4d35s2 | a 4P | 1/2 | 4998.17 | M52 |
| | 3/2 | 5297.92 | M52 |
| | 5/2 | 5965.45 | M52 |
| | | | |
4d4(a 5D)5s | a 4D | 1/2 | 8410.90 | M52 |
| | 3/2 | 8705.32 | M52 |
| | 5/2 | 9043.14 | M52 |
| | 7/2 | 9497.52 | M52 |
| | | | |
4d35s2 | a 2D | 3/2 | 9439.08 | M52 |
| | 5/2 | 10237.51 | M52 |
| | | | |
4d4(b 3F)5s | b 4F | 9/2 | 13145.71 | M52 |
| | | | |
4d4(a 5D)5p | y 6F° | 1/2 | 23984.87 | M52 |
| | 3/2 | 24164.79 | M52 |
| | 5/2 | 24396.80 | M52 |
| | 7/2 | 24769.91 | M52 |
| | 9/2 | 25199.81 | M52 |
| | 11/2 | 25680.36 | M52 |
| | | | |
4d4(a 5D)5p | x 6D° | 7/2 | 27427.07 | M52 |
| | | | |
4d35s(a 5P)5p | y 6P° | 3/2 | 28278.25 | M52 |
| | 5/2 | 28652.66 | M52 |
| | 7/2 | 28973.12 | M52 |
| | | | |
4d35s(a 5F)5p | x 4G° | 5/2 | 31056.60 | M52 |
| | 7/2 | 31485.20 | M52 |
| | 9/2 | 32004.63 | M52 |
| | 11/2 | 32572.72 | M52 |
| | | | |
4d35s(a 5P)5p | x 4P° | 3/2 | 34867.68 | M52 |
| | | | |
4d4(c 3F)5p | u 4G° | 9/2 | 37523.53 | M52 |
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Nb II (5D0) | Limit | | 54513.8 | RMBH87 |
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