Electrodeless tubes containing 0.5 mg of mercury were excited by radio waves of 110-mc frequency. In the region 5790–2446A the wavelengths of one hundred and ten components of the complex lines in the first spectrum of 80Hg199 have been measured relative to 5460.7532A with Fabry-Perot interferometers. Thirty-five lines in the first spectrum of 80Hg200 were similarly measured. Fifty energy levels of Hg-199 were derived and their centers of gravity were compared with the levels of the even isotopes. The 6s2 1S0 level was set at zero in all cases. The centers of gravity of the levels of Hg-199 fall between those of Hg-198 and Hg-200 but only one-seventh as far from the former as from the latter. For eighteen well-determined centers the median difference between observed and interpolated is ±0.002 cm−1. Fourteen centers of gravity involving twenty-nine levels of Hg-201 were derived from the data of Schuler and Keyston or Schuler and Jones. The median difference between these centers and levels interpolated between even isotopes is ±0.004 cm−1. Seven levels of Hg-204 (Schuler and Keyston, and Sterner) were compared with the levels of the other isotopes. The 6d1D2 and 6d3D1 levels are anomalous. Two hitherto unobserved lines of the type 3P°1–3D3 furnish levels that indicate that unlike the 3D1 and 3D2 the 3D3 levels are not inverted in the spectrum of Hg-199.
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Wavelengths in the spectra of mercury 199 and 200.
1
2
3
4
5
6
λ in air
Vacuum wave observed
Number computed
80Hg199 Schuler
No. obs.
Level combinations
5790.8900
17263.715
3.715
3.711
18
1/2–3/2
5790.8308
17263.892
3.895
3.892
3
3/2–3/2
5790.6631
17264.391
4.390
10
6p1P°1–6d1D2
5790.5444
17264.745
4.745
4.752
26
3/2–5/2
5769.6437
17327.287
7.289
7.288
29
3/2–5/2
5769.5994
17327.420
7.419
18
6p1P°1–6d3D2
5769.5457
17327.581
7.586
7.581
25
1/2–3/2
5769.4863
17327.760
7.766
7.758
3
3/2–3/2
5460.8300
18307.147
7.139
7.148
22
3/2–1/2
5460.7449
18307.432
7.432
6
6p3P°2–7s3S1
5460.7355
18307.463
7.461
7.463
4
5/2–3/2
5460.5103
18308.218
8.208
8.216
9
3/2–3/2
5025.8248
19891.684
1.684
----
1
1/2–1/2
5025.6232
19892.482
2.478
1
6p1P°1–8s3S1
5025.5211
19892.886
2.880
----
1
3/2–3/2
4916.0975
20335.660
5.656
5.658
10
1/2–1/2
4916.0674
20335.784
5.782
11
6p1P°1–8s1S0
4916.0549
20335.836
5.836
5.839
7
3/2–1/2
4358.5176
22937.133
7.126
7.136
4
3/2–1/2
4358.3804
22937.855
7.862
7.851
14
1/2–1/2
4358.4313
22938.113
8.118
14
6p3P°1–7s3S1
4358.3160
22938.194
8.194
8.197
24
3/2–3/2
4358.1762
22938.930
8.930
8.927
5
1/2–3/2
4347.5774
22994.851
4.848
4.851
22
1/2–3/2
4347.5444
22995.025
5.028
5.032
3
3/2–3/2
4347.4964
22995.280
5.283
9
6p1P°1–7d1D2
4347.4498
22995.526
5.534
5.528
30
3/2–5/2
4339.2304
23039.083
9.076
----
7
3/2–5/2
4339.2250
23039.112
9.114
6
6p1P°1–7d3D2
4339.220C
23039.---
9.148
----
C
1/2–3/2
4339.1871
23039.309
9.328
----
1
3/2–3/2
4108.0772
24335.421
5.418
5.413
7
1/2–1/2
4108.0573
24335.538
S
1
6p1P°1–9s1S0
4108.0476
24335.596
5.598
5.594
10
3/2–1/2
4077.8785
24515.633
5.635
5.636
17
3/2–1/2
4077.8343
24515.898
S
9
6p3P°1–7s1S0
4077.7553
24516.373
6.371
6.369
14
1/2–1/2
4046.6878
24704.588
4.595
4.583
18
1/2–1/2
4046.5676
24705.322
5.327
8
6p3P°0–7s3S1
4046.5120
24705.661
5.663
5.656
25
1/2–3/2
3906.4280
25591.583
1.592
----
8
1/2–3/2
3906.3717
25591.952
D
1
6p1P°1–8d1D2
3906.3426
25592.143
2.16-
----
9
3/2–5/2
3901.8670
25621.497
1.497
----
1
3/2–5/2
3901.867C
25621.---
1.495
C
6p1P°1–8d3D2
3801.6796
26296.696
6.696
----
1
1/2–1/2
3801.661-
26296.825
S
1
6p1P°1–10s1S0
3801.6538
26296.875
6.876
----
2
3/2–1/2
3704.1451
26989.101
D
----
3
3/2–5/2
3704.170M
26988.---
8.916
M
6p1P°1–9d1D2
3701.434-
27008.869
8.864
----
3
3/2–5/2
3701.436C
27008.---
8.854
C
6p1P°1–9d3D2
3663.397C
27289.---
9.295
----
C
5/2–3/2
3663.2961
27290.046
0.043
----
9
3/2–3/2
3663.282C
27290.---
0.147
----
C
5/2–5/2
3663.280C
27290.---
0.166
C
6p3P°2–6d1D2
3663.182C
27290.---
0.893
----
C
3/2–5/2
3662.9295
27292.777
2.777
----
1
5/2–3/2
3662.879C
27293.---
3.15-
C
6p3P°2–6d3D1
3662.829C
27293.---
3.523
----
C
3/2–3/2
3662.779C
27293.---
3.900
----
C
3/2–1/2
3654.9069
27352.687
2.691
2.693
16
5/2–5/2
3654.842C
27353.---
3.168
----
C
5/2–3/2
3654.8387
27353.194
3.195
9
6p3P°2–6d3D2
3654.8051
27353.448
3.437
3.451
3
3/2–5/2
3654.7416
27353.923
3.914
3.921
7
3/2–3/2
3650.2544
27387.545
7.543
----
15
5/2–5/2
3650.1549
27388.292
D
4
6p3P°2–6d3D3
3650.1530*
27388.306
D
----
5
5/2–7/2
3341.5070*
29918.012
8.013
8.043
2
3/2–1/2
3341.4795
29918.257
8.254
1
6p3P°2–8s3S1
3341.477C
29918.---
8.282
8.341
C
5/2–3/2
3341.393C
29919.---
9.028
9.080
C
3/2–3/2
3131.921C
31920.---
0.030
----
C
3/2–3/2
3131.8487
31920.767
0.766
----
1
1/2–3/2
3131.840C
31920.---
0.852
C
6p3P°1–6d1D2
3131.8390
31920.866
0.880
----
2
3/2–5/2
3131.5804
31923.502
3.510
----
2
3/2–3/2
3131.547C
31923.---
3.84-
C
6p3P°1–6d3D1
3131.543C
31923.---
3.887
----
C
3/2–1/2
3131.507C
31924.---
4.246
----
C
1/2–3/2
3131.4714
31924.613
4.623
----
1
1/2–1/2
3125.7131
31983.424
3.424
3.437
12
3/2–5/2
3125.6686
31983.881
3.881
4
6p3P°1–6d3D2
3125.666C
31983.---
3.901
----
C
3/2–3/2
3125.5944
31984.638
4.637
4.639
16
1/2–3/2
3122.3107*
32018.274
8.276
----
8
3/2–5/2
6p3P°1–6d3D3
3027.546C
33020.---
0.430
----
C
5/2–3/2
3027.4990
33020.944
0.936
----
11
5/2–5/2
3027.4882
33021.063
1.059
6
6p3P°2–7d1D2
3027.4770
33021.155
1.176
----
8
3/2–3/2
3027.431C
33021.---
1.682
----
C
3/2–5/2
3025.6500
33041.123
1.125
----
7
5/2–3/2
3025.6070
33041.595
1.593
5
6p3P°2–7d3D1
3025.584-
33041.844
1.871
----
2
3/2–3/2
3025.5358
33042.370
2.373
----
3
3/2–1/2
3023.5132
33064.473
4.478
----
17
5/2–5/2
3023.490C
33064.---
4.730
----
C
5/2–3/2
3023.475C
33064.---
4.890
C
6p3P°2–7d3D2
3023.444C
33065.---
5.224
----
C
3/2–5/2
3023.422C
33065.---
5.476
----
C
3/2–3/2
3021.5658
33085.782
5.772
----
8
5/2–5/2
3021.499C
33086.---
6.518
----
C
3/2–5/2
3021.4972*
33086.535
D
----
26
5/2–7/2
3021.4972
33086.535
D
26
6p3P°2–7d3D3
2967.2866
33690.979
0.977
----
1
1/2–3/2
2967.2815
33691.038
1.05-
1
6p3P°0–6d3D1
2967.2534
33691.356
D
----
10
1/2–1/2
2967.5954*
33687.473
7.499
----
4
1/2–3/2
6p3P°0–6d1D2
2925.4332
34172.965
2.946
----
12
3/2–1/2
2925.4116
34173.218
3.210
14
6p3P°2–9s3S1
2925.410C*
34173.---
3.234
----
C
5/2–3/2
2925.3459
34173.985
3.980
----
7
3/2–3/2
2893.6752
34547.995
8.000
7.973
3
3/2–1/2
2893.6140
34548.726
8.736
8.724
18
1/2–1/2
2893.5965
34548.939
8.940
3
6p3P°1–8s3S1
2893.5898
34549.015
9.015
9.008
3
3/2–3/2
2893.5280
34549.752
9.751
9.751
3
1/2–3/2
2856.9584
34991.974
1.971
----
11
3/2–1/2
2856.9379
34992.225
S
11
6p3P°1–8s1S0
2856.8990
34992.702
2.707
----
5
1/2–1/2
2806.775-*
35617.582
7.57-
----
6
5/2–5/2
2806.763C
35617.---
7.725
C
6p3P°2–8d1D2
2806.749-
35617.905
7.920
----
4
3/2–3/2
2805.388-
35635.189
5.231
----
2
5/2–3/2
2805.347C
35635.---
5.707
C
6p3P°2–8d3D1
2804.4683
35646.872
6.899
----
9
5/2–5/2
2804.4372
35647.267
7.271
6
6p3P°2–8d3D2
2804.3998
35647.743
7.772
----
3
3/2–3/2
2803.469M
35659.---
9.575
M
6p3P°2–8d3D3
2803.4686
35659.583
----
----
22
5/2–7/2
2759.7262
36224.767
4.760
----
9
3/2–1/2
2759.708C
36225.---
5.00-
----
C
5/2–3/2
2759.7074
36225.014
5.023
8
6p3P°2–10s3S1
2752.8323
36315.481
5.469
5.439
10
1/2–1/2
2752.7818
36316.146
6.149
19
6p3P°0–8s3S1
2752.7562
36316.484
6.484
6.490
34
1/2–3/2
2699.4009
37034.262
4.273
----
6
5/2–5/2
2699.3752
37034.614
D
3
6p3P°0–9d3D2
2699.3406
37035.089
D
----
4
3/2–3/2
2698.830M
37042.---
2.090
M
6p3P°2–9d3D3
2698.827-
37042.14-
D
----
6
5/2–7/2
2674.9298
37373.044
S
----
4
3/2–1/2
2674.916M
37373.---
3.24-
M
6p3P°2–11s3S1
2674.9136*
37373.270
S
----
4
5/2–3/2
2655.1700
37651.158
1.163
----
5
3/2–3/2
2655.1324*
37651.691
1.669
----
13
3/2–5/2
2655.129C
37651.---
1.745
C
6p3P°1–7d1D2
2655.1173
37651.905
1.899
----
16
1/2–3/2
2653.7112
37671.854
1.858
----
19
3/2–3/2
2653.6813
37672.279
2.279
10
6p3P°1–7d3D1
2653.670C
37672.---
2.360
----
C
3/2–1/2
2653.6594
37672.589
2.594
----
3
1/2–3/2
2653.6238
37673.095
3.096
----
9
1/2–1/2
2652.0675
37695.201
5.211
----
22
3/2–5/2
2652.0413
37695.573
5.573
6
6p3P°1–7d3D2
2651.9973
37696.199
D
----
9
1/2–3/2
2650.5701*
37716.495
6.505
----
3
3/2–5/2
6p3P°1–7d3D3
2639.7830*
37870.609
D
----
13
5/2–7/2
2639.787M
37870.---
0.55-
M
6p3P°2–10d3D3
2576.3545
38802.906
2.933
----
3
3/2–1/2
2576.3022
38803.696
3.669
----
7
1/2–1/2
2576.289C
38803.---
3.896
C
6p3P°1–9s3S1
2576.2852
38803.950
3.967
----
22
3/2–3/2
2576.2349
38804.707
4.703
----
1
1/2–3/2
2536.5390
39411.947
S
1.966
14
1/2–1/2
2635.5162
39412.301
S
10
6s2 1S0–6p3P°1
2536.4919
39412.679
S
2.693
14
1/2–3/2
2534.7770
39439.340
9.327
----
12
1/2–3/2
2534.7682
39439.479
9.486
6
6p3P°0–7d3D3
2534.7456
39439.833
9.829
----
18
1/2–1/2
2483.8251
40248.333
8.32-
----
9
3/2–5/2
2483.820C
40248.---
8.406
C
6p3P°1–8d1D2
2483.8055
40248.651
8.643
----
6
1/2–3/2
2482.7365
40265.981
5.964
----
14
3/2–3/2
2482.7103
40266.406
6.402
12
6p3P°1–8d3D1
2482.6922
40266.699
6.700
----
4
1/2–3/2
2482.0172
40277.650
7.632
----
20
3/2–5/2
2481.9983
40277.957
7.957
24
6p3P°1–8d3D2
2481.9634
40278.523
8.495
----
12
1/2–3/2
2464.1067
40570.386
0.402
----
9
1/2–1/2
2464.0633
40571.101
1.105
10
6p3P°1–9s3S1
2464.0432
40571.432
1.436
----
12
1/2–3/2
2446.9105
40855.475
5.483
----
7
1/2–1/2
2446.897C
40855.---
5.695
C
6p3P°1–10s3S1
2446.8961
40855.715
5.73-
----
12
3/2–3/2
3650 This component and the even line were not resolved; the values were estimated from the broadening of the line.
3341 We never obtained the proper exposure and interferometer thickness for this line. The levels are very well established and the computed numbers should be accurate. No reason could be found for the disagreement with Schuler and Jones (see reference 6).
3122 This level combination is not found in the spectra of the even isotopes. The line makes possible the identification of the 6d3D3 components which have nearly the same separation as the combining 6p3P°2.
3021 The strongest component of 199 and the even line fall together and show no broadening with an order of 264,000. The levels deduced on the assumption of exact coincidence are in agreement with interpolated values.
2967.5 This combination is not found in the spectra of the even isotopes. Our observations are uncertain because of the neighboring strong line but our computed value agrees exactly with that published by Kessler (Phys. Rev. 77, 559 (1950)).
2925 The strong component of 199 and the line of 200 are as nearly in coincidence as can be determined from our plates.
2806 Like 2925.
2803 Like 2925.
2759 Like 2925.
2674 Like 2925.
2655 Like 2925.
2650 This level combination is not found in the spectra of the even isotopes. This line makes possible the identification of the 7d3D3 levels which have nearly the same separation as the combining 6p3P°2.
2639 Like 2925.
2576 Like 2925.
2536 The data of Schuler and Keyston (see reference 5) are influenced by the presence of components of the 201 line.
2446 Like 2925.
Only one line was available for the determination of this level.
The levels 10s3S1, 11s3S1, 6d3D1, 8d3D1, and 9d3D1 are poorly determined because of near coincidence with lines of Hg-199.
5460 Number by Sterner, Phys. Rev. 86, 139 (1952).
4077 Number computed.
Tables (7)
Table I
Wavelengths in the spectra of mercury 199 and 200.
1
2
3
4
5
6
λ in air
Vacuum wave observed
Number computed
80Hg199 Schuler
No. obs.
Level combinations
5790.8900
17263.715
3.715
3.711
18
1/2–3/2
5790.8308
17263.892
3.895
3.892
3
3/2–3/2
5790.6631
17264.391
4.390
10
6p1P°1–6d1D2
5790.5444
17264.745
4.745
4.752
26
3/2–5/2
5769.6437
17327.287
7.289
7.288
29
3/2–5/2
5769.5994
17327.420
7.419
18
6p1P°1–6d3D2
5769.5457
17327.581
7.586
7.581
25
1/2–3/2
5769.4863
17327.760
7.766
7.758
3
3/2–3/2
5460.8300
18307.147
7.139
7.148
22
3/2–1/2
5460.7449
18307.432
7.432
6
6p3P°2–7s3S1
5460.7355
18307.463
7.461
7.463
4
5/2–3/2
5460.5103
18308.218
8.208
8.216
9
3/2–3/2
5025.8248
19891.684
1.684
----
1
1/2–1/2
5025.6232
19892.482
2.478
1
6p1P°1–8s3S1
5025.5211
19892.886
2.880
----
1
3/2–3/2
4916.0975
20335.660
5.656
5.658
10
1/2–1/2
4916.0674
20335.784
5.782
11
6p1P°1–8s1S0
4916.0549
20335.836
5.836
5.839
7
3/2–1/2
4358.5176
22937.133
7.126
7.136
4
3/2–1/2
4358.3804
22937.855
7.862
7.851
14
1/2–1/2
4358.4313
22938.113
8.118
14
6p3P°1–7s3S1
4358.3160
22938.194
8.194
8.197
24
3/2–3/2
4358.1762
22938.930
8.930
8.927
5
1/2–3/2
4347.5774
22994.851
4.848
4.851
22
1/2–3/2
4347.5444
22995.025
5.028
5.032
3
3/2–3/2
4347.4964
22995.280
5.283
9
6p1P°1–7d1D2
4347.4498
22995.526
5.534
5.528
30
3/2–5/2
4339.2304
23039.083
9.076
----
7
3/2–5/2
4339.2250
23039.112
9.114
6
6p1P°1–7d3D2
4339.220C
23039.---
9.148
----
C
1/2–3/2
4339.1871
23039.309
9.328
----
1
3/2–3/2
4108.0772
24335.421
5.418
5.413
7
1/2–1/2
4108.0573
24335.538
S
1
6p1P°1–9s1S0
4108.0476
24335.596
5.598
5.594
10
3/2–1/2
4077.8785
24515.633
5.635
5.636
17
3/2–1/2
4077.8343
24515.898
S
9
6p3P°1–7s1S0
4077.7553
24516.373
6.371
6.369
14
1/2–1/2
4046.6878
24704.588
4.595
4.583
18
1/2–1/2
4046.5676
24705.322
5.327
8
6p3P°0–7s3S1
4046.5120
24705.661
5.663
5.656
25
1/2–3/2
3906.4280
25591.583
1.592
----
8
1/2–3/2
3906.3717
25591.952
D
1
6p1P°1–8d1D2
3906.3426
25592.143
2.16-
----
9
3/2–5/2
3901.8670
25621.497
1.497
----
1
3/2–5/2
3901.867C
25621.---
1.495
C
6p1P°1–8d3D2
3801.6796
26296.696
6.696
----
1
1/2–1/2
3801.661-
26296.825
S
1
6p1P°1–10s1S0
3801.6538
26296.875
6.876
----
2
3/2–1/2
3704.1451
26989.101
D
----
3
3/2–5/2
3704.170M
26988.---
8.916
M
6p1P°1–9d1D2
3701.434-
27008.869
8.864
----
3
3/2–5/2
3701.436C
27008.---
8.854
C
6p1P°1–9d3D2
3663.397C
27289.---
9.295
----
C
5/2–3/2
3663.2961
27290.046
0.043
----
9
3/2–3/2
3663.282C
27290.---
0.147
----
C
5/2–5/2
3663.280C
27290.---
0.166
C
6p3P°2–6d1D2
3663.182C
27290.---
0.893
----
C
3/2–5/2
3662.9295
27292.777
2.777
----
1
5/2–3/2
3662.879C
27293.---
3.15-
C
6p3P°2–6d3D1
3662.829C
27293.---
3.523
----
C
3/2–3/2
3662.779C
27293.---
3.900
----
C
3/2–1/2
3654.9069
27352.687
2.691
2.693
16
5/2–5/2
3654.842C
27353.---
3.168
----
C
5/2–3/2
3654.8387
27353.194
3.195
9
6p3P°2–6d3D2
3654.8051
27353.448
3.437
3.451
3
3/2–5/2
3654.7416
27353.923
3.914
3.921
7
3/2–3/2
3650.2544
27387.545
7.543
----
15
5/2–5/2
3650.1549
27388.292
D
4
6p3P°2–6d3D3
3650.1530*
27388.306
D
----
5
5/2–7/2
3341.5070*
29918.012
8.013
8.043
2
3/2–1/2
3341.4795
29918.257
8.254
1
6p3P°2–8s3S1
3341.477C
29918.---
8.282
8.341
C
5/2–3/2
3341.393C
29919.---
9.028
9.080
C
3/2–3/2
3131.921C
31920.---
0.030
----
C
3/2–3/2
3131.8487
31920.767
0.766
----
1
1/2–3/2
3131.840C
31920.---
0.852
C
6p3P°1–6d1D2
3131.8390
31920.866
0.880
----
2
3/2–5/2
3131.5804
31923.502
3.510
----
2
3/2–3/2
3131.547C
31923.---
3.84-
C
6p3P°1–6d3D1
3131.543C
31923.---
3.887
----
C
3/2–1/2
3131.507C
31924.---
4.246
----
C
1/2–3/2
3131.4714
31924.613
4.623
----
1
1/2–1/2
3125.7131
31983.424
3.424
3.437
12
3/2–5/2
3125.6686
31983.881
3.881
4
6p3P°1–6d3D2
3125.666C
31983.---
3.901
----
C
3/2–3/2
3125.5944
31984.638
4.637
4.639
16
1/2–3/2
3122.3107*
32018.274
8.276
----
8
3/2–5/2
6p3P°1–6d3D3
3027.546C
33020.---
0.430
----
C
5/2–3/2
3027.4990
33020.944
0.936
----
11
5/2–5/2
3027.4882
33021.063
1.059
6
6p3P°2–7d1D2
3027.4770
33021.155
1.176
----
8
3/2–3/2
3027.431C
33021.---
1.682
----
C
3/2–5/2
3025.6500
33041.123
1.125
----
7
5/2–3/2
3025.6070
33041.595
1.593
5
6p3P°2–7d3D1
3025.584-
33041.844
1.871
----
2
3/2–3/2
3025.5358
33042.370
2.373
----
3
3/2–1/2
3023.5132
33064.473
4.478
----
17
5/2–5/2
3023.490C
33064.---
4.730
----
C
5/2–3/2
3023.475C
33064.---
4.890
C
6p3P°2–7d3D2
3023.444C
33065.---
5.224
----
C
3/2–5/2
3023.422C
33065.---
5.476
----
C
3/2–3/2
3021.5658
33085.782
5.772
----
8
5/2–5/2
3021.499C
33086.---
6.518
----
C
3/2–5/2
3021.4972*
33086.535
D
----
26
5/2–7/2
3021.4972
33086.535
D
26
6p3P°2–7d3D3
2967.2866
33690.979
0.977
----
1
1/2–3/2
2967.2815
33691.038
1.05-
1
6p3P°0–6d3D1
2967.2534
33691.356
D
----
10
1/2–1/2
2967.5954*
33687.473
7.499
----
4
1/2–3/2
6p3P°0–6d1D2
2925.4332
34172.965
2.946
----
12
3/2–1/2
2925.4116
34173.218
3.210
14
6p3P°2–9s3S1
2925.410C*
34173.---
3.234
----
C
5/2–3/2
2925.3459
34173.985
3.980
----
7
3/2–3/2
2893.6752
34547.995
8.000
7.973
3
3/2–1/2
2893.6140
34548.726
8.736
8.724
18
1/2–1/2
2893.5965
34548.939
8.940
3
6p3P°1–8s3S1
2893.5898
34549.015
9.015
9.008
3
3/2–3/2
2893.5280
34549.752
9.751
9.751
3
1/2–3/2
2856.9584
34991.974
1.971
----
11
3/2–1/2
2856.9379
34992.225
S
11
6p3P°1–8s1S0
2856.8990
34992.702
2.707
----
5
1/2–1/2
2806.775-*
35617.582
7.57-
----
6
5/2–5/2
2806.763C
35617.---
7.725
C
6p3P°2–8d1D2
2806.749-
35617.905
7.920
----
4
3/2–3/2
2805.388-
35635.189
5.231
----
2
5/2–3/2
2805.347C
35635.---
5.707
C
6p3P°2–8d3D1
2804.4683
35646.872
6.899
----
9
5/2–5/2
2804.4372
35647.267
7.271
6
6p3P°2–8d3D2
2804.3998
35647.743
7.772
----
3
3/2–3/2
2803.469M
35659.---
9.575
M
6p3P°2–8d3D3
2803.4686
35659.583
----
----
22
5/2–7/2
2759.7262
36224.767
4.760
----
9
3/2–1/2
2759.708C
36225.---
5.00-
----
C
5/2–3/2
2759.7074
36225.014
5.023
8
6p3P°2–10s3S1
2752.8323
36315.481
5.469
5.439
10
1/2–1/2
2752.7818
36316.146
6.149
19
6p3P°0–8s3S1
2752.7562
36316.484
6.484
6.490
34
1/2–3/2
2699.4009
37034.262
4.273
----
6
5/2–5/2
2699.3752
37034.614
D
3
6p3P°0–9d3D2
2699.3406
37035.089
D
----
4
3/2–3/2
2698.830M
37042.---
2.090
M
6p3P°2–9d3D3
2698.827-
37042.14-
D
----
6
5/2–7/2
2674.9298
37373.044
S
----
4
3/2–1/2
2674.916M
37373.---
3.24-
M
6p3P°2–11s3S1
2674.9136*
37373.270
S
----
4
5/2–3/2
2655.1700
37651.158
1.163
----
5
3/2–3/2
2655.1324*
37651.691
1.669
----
13
3/2–5/2
2655.129C
37651.---
1.745
C
6p3P°1–7d1D2
2655.1173
37651.905
1.899
----
16
1/2–3/2
2653.7112
37671.854
1.858
----
19
3/2–3/2
2653.6813
37672.279
2.279
10
6p3P°1–7d3D1
2653.670C
37672.---
2.360
----
C
3/2–1/2
2653.6594
37672.589
2.594
----
3
1/2–3/2
2653.6238
37673.095
3.096
----
9
1/2–1/2
2652.0675
37695.201
5.211
----
22
3/2–5/2
2652.0413
37695.573
5.573
6
6p3P°1–7d3D2
2651.9973
37696.199
D
----
9
1/2–3/2
2650.5701*
37716.495
6.505
----
3
3/2–5/2
6p3P°1–7d3D3
2639.7830*
37870.609
D
----
13
5/2–7/2
2639.787M
37870.---
0.55-
M
6p3P°2–10d3D3
2576.3545
38802.906
2.933
----
3
3/2–1/2
2576.3022
38803.696
3.669
----
7
1/2–1/2
2576.289C
38803.---
3.896
C
6p3P°1–9s3S1
2576.2852
38803.950
3.967
----
22
3/2–3/2
2576.2349
38804.707
4.703
----
1
1/2–3/2
2536.5390
39411.947
S
1.966
14
1/2–1/2
2635.5162
39412.301
S
10
6s2 1S0–6p3P°1
2536.4919
39412.679
S
2.693
14
1/2–3/2
2534.7770
39439.340
9.327
----
12
1/2–3/2
2534.7682
39439.479
9.486
6
6p3P°0–7d3D3
2534.7456
39439.833
9.829
----
18
1/2–1/2
2483.8251
40248.333
8.32-
----
9
3/2–5/2
2483.820C
40248.---
8.406
C
6p3P°1–8d1D2
2483.8055
40248.651
8.643
----
6
1/2–3/2
2482.7365
40265.981
5.964
----
14
3/2–3/2
2482.7103
40266.406
6.402
12
6p3P°1–8d3D1
2482.6922
40266.699
6.700
----
4
1/2–3/2
2482.0172
40277.650
7.632
----
20
3/2–5/2
2481.9983
40277.957
7.957
24
6p3P°1–8d3D2
2481.9634
40278.523
8.495
----
12
1/2–3/2
2464.1067
40570.386
0.402
----
9
1/2–1/2
2464.0633
40571.101
1.105
10
6p3P°1–9s3S1
2464.0432
40571.432
1.436
----
12
1/2–3/2
2446.9105
40855.475
5.483
----
7
1/2–1/2
2446.897C
40855.---
5.695
C
6p3P°1–10s3S1
2446.8961
40855.715
5.73-
----
12
3/2–3/2
3650 This component and the even line were not resolved; the values were estimated from the broadening of the line.
3341 We never obtained the proper exposure and interferometer thickness for this line. The levels are very well established and the computed numbers should be accurate. No reason could be found for the disagreement with Schuler and Jones (see reference 6).
3122 This level combination is not found in the spectra of the even isotopes. The line makes possible the identification of the 6d3D3 components which have nearly the same separation as the combining 6p3P°2.
3021 The strongest component of 199 and the even line fall together and show no broadening with an order of 264,000. The levels deduced on the assumption of exact coincidence are in agreement with interpolated values.
2967.5 This combination is not found in the spectra of the even isotopes. Our observations are uncertain because of the neighboring strong line but our computed value agrees exactly with that published by Kessler (Phys. Rev. 77, 559 (1950)).
2925 The strong component of 199 and the line of 200 are as nearly in coincidence as can be determined from our plates.
2806 Like 2925.
2803 Like 2925.
2759 Like 2925.
2674 Like 2925.
2655 Like 2925.
2650 This level combination is not found in the spectra of the even isotopes. This line makes possible the identification of the 7d3D3 levels which have nearly the same separation as the combining 6p3P°2.
2639 Like 2925.
2576 Like 2925.
2536 The data of Schuler and Keyston (see reference 5) are influenced by the presence of components of the 201 line.
2446 Like 2925.
Only one line was available for the determination of this level.
The levels 10s3S1, 11s3S1, 6d3D1, 8d3D1, and 9d3D1 are poorly determined because of near coincidence with lines of Hg-199.