Niobium (Nb)
Energy Levels of Singly Ionized Niobium ( Nb II )
Configuration
Term
J
Level(cm
-1
)
Ref.
4
d
4
5
D
0
0.000
RCL00
1
158.984
RCL00
2
438.361
RCL00
3
801.326
RCL00
4
1224.823
RCL00
4
d
3
(
4
F)5
s
5
F
1
2356.816
RCL00
2
2629.132
RCL00
3
3029.629
RCL00
4
3542.561
RCL00
5
4146.037
RCL00
4
d
4
3
P
0
5562.241
RCL00
1
6192.310
RCL00
2
7261.324
RCL00
4
d
3
(
2
P)5
s
3
P
1
14626.199
RCL00
2
14660.755
RCL00
0
14678.318
RCL00
4
d
3
(
4
F)5
p
5
G°
2
33351.090
RCL00
3
33919.244
RCL00
4
34632.033
RCL00
5
35474.197
RCL00
6
36455.457
RCL00
4
d
3
(
4
F)5
p
5
F°
1
36731.805
RCL00
2
36962.774
RCL00
3
37376.901
RCL00
4
37528.382
RCL00
5
38024.336
RCL00
4
d
3
(
4
F)5
p
5
D°
0
37298.242
RCL00
1
37480.076
RCL00
2
37797.316
RCL00
3
38216.387
RCL00
4
38291.252
RCL00
4
d
2
(
3
F)5
s
5
p
(
3
P)
5
F°
5
51537.014
RCL00
4
d
2
(
3
F)5
s
5
p
(
3
P)
5
D°
3
52714.892
RCL00
4
53407.279
RCL00
Nb III (
4
F
3
/
2
)
Limit
113000
M52