Energy Levels of Singly Ionized Niobium ( Nb II )

Configuration     Term   J   Level(cm-1) Ref.


4d4               5D     0       0.000   RCL00
                         1     158.984   RCL00
                         2     438.361   RCL00
                         3     801.326   RCL00
                         4    1224.823   RCL00
 
4d3(4F)5s         5F     1    2356.816   RCL00
                         2    2629.132   RCL00
                         3    3029.629   RCL00
                         4    3542.561   RCL00
                         5    4146.037   RCL00
 
4d4               3P     0    5562.241   RCL00
                         1    6192.310   RCL00
                         2    7261.324   RCL00
 
4d3(2P)5s         3P     1   14626.199   RCL00
                         2   14660.755   RCL00
                         0   14678.318   RCL00
 
4d3(4F)5p         5G°    2   33351.090   RCL00
                         3   33919.244   RCL00
                         4   34632.033   RCL00
                         5   35474.197   RCL00
                         6   36455.457   RCL00
 
4d3(4F)5p         5F°    1   36731.805   RCL00
                         2   36962.774   RCL00
                         3   37376.901   RCL00
                         4   37528.382   RCL00
                         5   38024.336   RCL00
 
4d3(4F)5p         5D°    0   37298.242   RCL00
                         1   37480.076   RCL00
                         2   37797.316   RCL00
                         3   38216.387   RCL00
                         4   38291.252   RCL00
 
4d2(3F)5s5p(3P)   5F°    5   51537.014   RCL00
 
4d2(3F)5s5p(3P)   5D°    3   52714.892   RCL00
                         4   53407.279   RCL00
 
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Nb III (4F3/2)    Limit     113000       M52