The spectrum produced by the hollow-cathode discharge was measured from 2107 to 1377 Å. With these new data and the previously published observations of Yb ii at longer wavelengths, new 4f14nl series terms were found, including 10s, 7p, 7–11d, 5–14f, and 5–6g. A value of 98 269(50) cm−1 was deduced for the ionization energy.
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This line is listed in Ref. 6 as belonging to Yb i. According to Corliss, that was a typographical error.
This line was given another classification in Ref. 1.
The Zeeman effect reported for this line by Meggers in Ref. 1 is inconsistent with our classification. We re-examined the photographic plate containing the pattern and found that it is unquestionably due to a
transition; the p components are blended, but the four n components are resolved. Assuming Meggers’s value of 0.84 for the g value of the 7d2D3/2 level (76 517 cm−1) and his measurement of 0.938 for the displacement of the strong n component, we deduce a value of g = 0.661 for the 7p2P°1/2 level.
From the Zeeman effect of this line as reported in Ref. 1, we deduce a g value of 1.20 for the 8d2D5/2 level.
Table II
Observed lines of Yb ii in the vacuum-ultraviolet region.
Vacuum wavelength (Å)
Int.
Wave number (cm−1)
Classification
2107.393
5
47 452.00
2105.785
3
47 488.22
2105.319
5
47 498.74
2103.402
2000
47 542.03
5d2D3/2–5f2F°5/2
2101.061
3
47 595.01
2097.456
10
47 676.81
2095.977
20
47 710.45
33 494°7/2–81 2059/2
2086.882
7
47 918.38
28 757°3/2–7d2D5/2
2082.257
20
48 024.81
6s2S1/2–48 024°3/2
2080.191
50
48 072.50
6p2P°3/2–78 4645/2
2059.270
1
48 560.90
2052.455
1
48 722.14
2047.333
20
48 844.03
6p2P°1/2–75 9051/2
2046.342
10
48 867.68
2045.319
1
48 892.13
2034.497
5
49 152.21
2031.954
5
49 213.71
6p2P°3/2–79 6053/2
2030.124
3
49 258.08
2026.571
1
49 344.44
2026.476
5
49 346.75
2023.510
2
49 419.08
6s2S1/2–49 419°1/2
2022.847
15
49 435.28
2022.677
10
49 439.43
21 418°7/2–70 8589/2
2022.628
20
49 440.62
2022.026
100
49 455.35
6p2P°1/2–7d2D3/2
2018.754
5
49 535.52
21 418°7/2–70 9545/2
2018.262
20
49 547.57
2016.517
1
49 590.46
2010.564
1
49 737.28
6p2P°1/2–76 7993/2
2003.533
10
49 911.33
1999.534
20
50 011.66
1998.561
2
50 036.01
1994.261
1
50 143.89
1993.841
10
50 154.45
1991.150
50
50 222.24
6p2P°1/2–77 2843/2
1990.181
60
50 246.68
1986.310
2
50 344.61
1982.148
1
50 450.31
1968.011
1
50 812.73
1942.302
1
51 485.30
1928.096
4
51 864.62
21 418°7/2–73 2839/2
1922.829
20
52 006.72
6p2P°3/2–82 3983/2
1920.571
40
52 067.84
6s2S1/2–52 067°1/2
1910.872
20
52 332.12
21 418°7/2–73 7509/2
1899.484
10
52 645.87
1887.227
60
52 987.78
6s2S1/2–52 987°3/2
1882.258
1
53 127.68
1875.747
20
53 312.09
1874.167
4
53 357.03
1872.461
2
53 405.64
1870.986
30
53 447.74
6p2P°3/2–8d2D3/2
1867.682
1
53 542.31
1864.844
200
53 623.78
6p2P°3/2–8d2D5/2
1861.623
7
53 716.58
1850.255
3
54 046.61
1847.331
8
54 132.15
21 418°7/2–75 5505/2
1840.063
2
54 345.97
1826.435
20
54 751.48
21 418°7/2–76 1705/2
1817.207
20
55 029.51
6p2P°1/2–82 0911/2
1812.226
1
55 180.74
1810.890
500
55 221.45
6s2S1/2–55 221°3/2
1809.707
50
55 257.57
21 418°7/2–7d2D5/2
1807.852
40
55 314.25
1804.395
100
55 420.24
21 418°7/2–76 8395/2
1800.980
10
55 525.34
1794.371
2
55 729.85
1790.659
30
55 845.36
1781.697
30
56 126.26
5d2D5/2–6f2F°5/2
1781.572
10
56 130.22
1781.290
1000
56 139.09
5d2D5/2–6f2F°7/2
1779.745
40
56 187.81
21 418°7/2–77 6065/2
1778.196
100
56 236.78
1775.701
1
56 315.78
1775.295
30
56 328.66
21 418°7/2–77 7479/2
1773.804
15
56 376.00
6p2P°3/2–10s2S1/2
1772.834
1
56 406.84
1771.064
3
56 463.25
21 418°7/2–77 8827/2
1768.884
200
56 532.81
1765.183
100
56 651.36
21 418°7/2–78 0709/2
1762.784
30
56 728.45
1761.248
100
56 777.92
6p2P°1/2–8d2D3/2
1759.508
30
56 834.08
1759.327
30
56 839.91
6s2S1/2–56 840°3/2
1750.388
3
57 130.19
1749.383
10
57 163.01
1744.291
10
57 329.89
1739.181
1000
57 498.32
5d2D3/2–6f2F°5/2
1736.450
80
57 588.77
6p2P°3/2–9d2D5/2
1724.981
1
57 971.64
1719.833
40
58 145.19
31 568°5/2–89 7135/2
1719.310
20
58 162.88
6s2S1/2–58 162°1/2
1718.453
2
58 191.86
1717.914
100
58 210.14
21 418°7/2–79 6287/2
1717.627
2
58 219.84
1704.371
100
58 672.68
6s2S1/2–58 672°1/2
1702.923
1
58 722.56
1695.901
2
58 965.69
1688.706
4
59 216.95
1685.426
2
59 332.18
1684.990
4
59 347.53
1674.861
10
59 706.45
6p2P°1/2–10s2S1/2
1669.619
40
59 893.91
21 418°7/2–81 3125/2
1667.952
2
59 953.78
1663.140
40
60 127.25
6p2P°3/2–10d2D5/2
1662.301
1
60 157.57
1659.027
1
60 276.30
1655.183
4
60 416.28
1652.559
5
60 512.21
1646.279
20
60 743.03
6p2P°1/2–9d 2D3/2
1645.964
1
60 754.66
1645.660
1
60 765.89
1641.768
1
60 909.96
6s2S1/2–60 910°3/2
1638.294
20
61 039.11
1636.072
3
61 122.00
1634.476
1
61 181.70
1634,392
2
61 184.81
1629.594
3
61 364.99
1624.290
20
61 565.38
5d2D5/2–7f2F°5/2
1624.074
500
61 573.54
5d2D5/2–7f2F°7/2
1623.441
2
61 597.56
1617.409
10
61 827.29
6p2P°3/2–11d2D5/2
1614.494
20
61 938.90
1609.344
1
62 137.12
1608.394
20
62 173.80
1606.196
20
62 258.92
1605.146
1
62 299.61
1604.210
3
62 336.00
1603.230
1
62 374.08
1600.011
10
62 499.57
1597.515
8
62 297.21
21 418°7/2–8d2D5/2
1595.458
2
62 677.92
1593.853
3
62 741.03
1588.880
500
62 937.70
5d2D3/2–7f2F°5/2
1586.760
3
63 021.49
1585.431
5
63 074.32
1582.608
2
63 186.85
1581.465
10
63 232.51
1578.465
3
63 352.69
6p2P°1/2–10d2D3/2
1576.053
1
63 449.62
1570.036
10
63 692.79
1569.707
5
63 706.17
6s2S1/2–7p2P°1/2
1564.773
10
63 907.03
1559.568
20
64 120.30
1559.160
60
64 137.09
1558.162
1
64 178.20
1557.830
100
64 191.87
6s2S1/2–64 191°3/2
1556.768
20
64 235.65
1554.296
20
64337.82
1553.348
5
64 377.08
1553.304
2
64 378.89
1552.328
2
64 419.38
1552.009
1
64 432.60
1550.099
2
64 511.99
1548.606
10
64 574.20
1548.417
20
64 582.07
1545.976
10
64 648.07
1543.631
1
64 782.32
1543.522
3
64 786.90
1543.132
2
64 803.27
1542.398
30
64 834.10
1542.334
30
64 836.81
1542.182
30
64 843.21
5d2D5/2–8f2F°5/2
1541.954
400
64 852.78
5d2D5/2–8f2F°7/2
1541.409
10
64 875.72
1541.349
1
64 878.24
1541.066
10
64 890.14
1539.774
2
64 944.58
1539.647
50
64 949.94
1538.520
10
64 997.55
1538.210
2
65 010.64
1537.321
10
65 048.22
1536.928
3
65 064.84
1535.372
10
65 130.82
1534.627
20
65 162.41
1532.810
5
65 239.64
1532.503
1
65 252.71
1531.412
3
65 299.20
1531.332
10
65 302.60
1531.286
30
65 304.56
1531.210
3
65 307.84
1529.082
1
65 398.70
1528.349
200
65 430.08
1528.156
20
65 438.35
1527.414
10
65 470.16
1526.993
20
65 488.20
1524.527
300
65 594.10
6s2S1/2–7p2P°3/2
1523.682
1
65 630.48
1523.389
10
65 643.12
1522.792
2
65 668.87
1522.506
1
65 681.19
1520.390
20
65 772.61
1520.018
10
65 788.68
1516.440
10
65 943.92
1514.794
2
66 015.56
1514.646
20
66 022.01
1514.339
20
66 035.41
1513.934
2
66 053.06
1510.824
60
66 189.02
6s2S1/2–66 189°3/2
1510.230
300
66 215.06
5d2D3/2–8f2F°5/2
1508.115
10
66 307.93
1507.601
1
66 330.54
1507.556
2
66 332.51
1504.995
3
66 445.42
1501.964
8
66 579.50
1501.044
1
66 620.29
1500.458
2
66 646.30
1495.337
2
66 874.57
1494.371
3
66 917.81
1493.009
200
66 978.82
5d2D5/2–9f2F°7/2
1492.938
4
66 982.01
5d2D5/2–9f2F°5/2
1490.084
1
67 110.29
1489.266
10
67 147.15
1488.287
3
67 191.36
1488.114
20
67 199.16
1488.024
3
67 203.21
1487.972
30
67 205.58
1487.778
20
67 214.32
1487.440
20
67 229.62
1485.212
2
67 330.44
1483.931
1
67 388.60
1483.059
1
67 428.22
1480.070
1
67 564.35
1479.446
40
67 592.85
1479.329
10
67 598.23
1476.163
1
67 743.19
1471.672
1
67 949.93
1469.843
50
68 034.48
1466.252
4
68 201.10
1464.696
2
68 273.56
1464.602
20
68 277.93
1463.994
10
68 306.30
1462.969
100
68 354.16
5d2D3/2–9f2F°5/2
1461.257
100
68 434.22
5d2D5/2–10f2F°7/2
1460.462
10
68 471.49
1459.983
5
68 493.93
1459.900
10
68 497.86
1459.034
7
68 538.51
1458.586
5
68 559.56
1457.117
10
68 628.65
1456.902
5
68 638.78
1456.344
8
68 665.07
1452.894
2
68 828.16
1446.341
10
69 140.00
1446.062
3
69 153.32
1442.834
1
69 308.05
1441.189
2
69 387.14
1439.358
60
69 475.43
5d2D5/2–11f2F°7/2
1436.952
2
69 591.73
1434.399
2
69 715.60
1433.013
10
69 783.06
1432.586
50
69 803.82
5d2D3/2–10f2F°5/2
1432.462
5
69 809.87
1431.565
5
69 853.61
1423.919
30
70 228.70
1423.562
30
70 246.35
5d2D5/2–12f2F°7/2
1422.553
20
70 296.17
1414.998
1
70 671.45
1414.440
5
70 699.36
1414.055
10
70 718.63
1412.829
4
70 779.95
1411.818
40
70 830.66
5d2D5/2–13f2F°7/2
1408.144
4
71 015.44
1407.597
2
71 043.08
1407.511
1
71 047.40
1404.477
3
71 200.88
1402.78
1
71 287.0
5d2D5/2–14f2F°7/2
1402.412
10
71 305.44
1401.850
30
71 334.32
1391.342
30
71 873.05
1377.736
5
72 582.85
Table III
The 4f14 (1S)nl energy levels of Yb ii. Units are cm−1.
The uncertainties of the values of the newly determined levels are about ±0.1 cm−1.
The effective quantum number n* is based on an ionization energy of 98 269 cm−1.
Levels found by Meggers (Ref. 1) are indicated by M. All other levels are newly derived.
The designation and J value of this level are changed from those given in Ref. 1.
The designation of this level is changed from that given in Ref. 1.
Tables (3)
Table I
Newly classified lines of Yb ii above 2107 Å. Observations are from Ref. 1.
This line is listed in Ref. 6 as belonging to Yb i. According to Corliss, that was a typographical error.
This line was given another classification in Ref. 1.
The Zeeman effect reported for this line by Meggers in Ref. 1 is inconsistent with our classification. We re-examined the photographic plate containing the pattern and found that it is unquestionably due to a
transition; the p components are blended, but the four n components are resolved. Assuming Meggers’s value of 0.84 for the g value of the 7d2D3/2 level (76 517 cm−1) and his measurement of 0.938 for the displacement of the strong n component, we deduce a value of g = 0.661 for the 7p2P°1/2 level.
From the Zeeman effect of this line as reported in Ref. 1, we deduce a g value of 1.20 for the 8d2D5/2 level.
Table II
Observed lines of Yb ii in the vacuum-ultraviolet region.
Vacuum wavelength (Å)
Int.
Wave number (cm−1)
Classification
2107.393
5
47 452.00
2105.785
3
47 488.22
2105.319
5
47 498.74
2103.402
2000
47 542.03
5d2D3/2–5f2F°5/2
2101.061
3
47 595.01
2097.456
10
47 676.81
2095.977
20
47 710.45
33 494°7/2–81 2059/2
2086.882
7
47 918.38
28 757°3/2–7d2D5/2
2082.257
20
48 024.81
6s2S1/2–48 024°3/2
2080.191
50
48 072.50
6p2P°3/2–78 4645/2
2059.270
1
48 560.90
2052.455
1
48 722.14
2047.333
20
48 844.03
6p2P°1/2–75 9051/2
2046.342
10
48 867.68
2045.319
1
48 892.13
2034.497
5
49 152.21
2031.954
5
49 213.71
6p2P°3/2–79 6053/2
2030.124
3
49 258.08
2026.571
1
49 344.44
2026.476
5
49 346.75
2023.510
2
49 419.08
6s2S1/2–49 419°1/2
2022.847
15
49 435.28
2022.677
10
49 439.43
21 418°7/2–70 8589/2
2022.628
20
49 440.62
2022.026
100
49 455.35
6p2P°1/2–7d2D3/2
2018.754
5
49 535.52
21 418°7/2–70 9545/2
2018.262
20
49 547.57
2016.517
1
49 590.46
2010.564
1
49 737.28
6p2P°1/2–76 7993/2
2003.533
10
49 911.33
1999.534
20
50 011.66
1998.561
2
50 036.01
1994.261
1
50 143.89
1993.841
10
50 154.45
1991.150
50
50 222.24
6p2P°1/2–77 2843/2
1990.181
60
50 246.68
1986.310
2
50 344.61
1982.148
1
50 450.31
1968.011
1
50 812.73
1942.302
1
51 485.30
1928.096
4
51 864.62
21 418°7/2–73 2839/2
1922.829
20
52 006.72
6p2P°3/2–82 3983/2
1920.571
40
52 067.84
6s2S1/2–52 067°1/2
1910.872
20
52 332.12
21 418°7/2–73 7509/2
1899.484
10
52 645.87
1887.227
60
52 987.78
6s2S1/2–52 987°3/2
1882.258
1
53 127.68
1875.747
20
53 312.09
1874.167
4
53 357.03
1872.461
2
53 405.64
1870.986
30
53 447.74
6p2P°3/2–8d2D3/2
1867.682
1
53 542.31
1864.844
200
53 623.78
6p2P°3/2–8d2D5/2
1861.623
7
53 716.58
1850.255
3
54 046.61
1847.331
8
54 132.15
21 418°7/2–75 5505/2
1840.063
2
54 345.97
1826.435
20
54 751.48
21 418°7/2–76 1705/2
1817.207
20
55 029.51
6p2P°1/2–82 0911/2
1812.226
1
55 180.74
1810.890
500
55 221.45
6s2S1/2–55 221°3/2
1809.707
50
55 257.57
21 418°7/2–7d2D5/2
1807.852
40
55 314.25
1804.395
100
55 420.24
21 418°7/2–76 8395/2
1800.980
10
55 525.34
1794.371
2
55 729.85
1790.659
30
55 845.36
1781.697
30
56 126.26
5d2D5/2–6f2F°5/2
1781.572
10
56 130.22
1781.290
1000
56 139.09
5d2D5/2–6f2F°7/2
1779.745
40
56 187.81
21 418°7/2–77 6065/2
1778.196
100
56 236.78
1775.701
1
56 315.78
1775.295
30
56 328.66
21 418°7/2–77 7479/2
1773.804
15
56 376.00
6p2P°3/2–10s2S1/2
1772.834
1
56 406.84
1771.064
3
56 463.25
21 418°7/2–77 8827/2
1768.884
200
56 532.81
1765.183
100
56 651.36
21 418°7/2–78 0709/2
1762.784
30
56 728.45
1761.248
100
56 777.92
6p2P°1/2–8d2D3/2
1759.508
30
56 834.08
1759.327
30
56 839.91
6s2S1/2–56 840°3/2
1750.388
3
57 130.19
1749.383
10
57 163.01
1744.291
10
57 329.89
1739.181
1000
57 498.32
5d2D3/2–6f2F°5/2
1736.450
80
57 588.77
6p2P°3/2–9d2D5/2
1724.981
1
57 971.64
1719.833
40
58 145.19
31 568°5/2–89 7135/2
1719.310
20
58 162.88
6s2S1/2–58 162°1/2
1718.453
2
58 191.86
1717.914
100
58 210.14
21 418°7/2–79 6287/2
1717.627
2
58 219.84
1704.371
100
58 672.68
6s2S1/2–58 672°1/2
1702.923
1
58 722.56
1695.901
2
58 965.69
1688.706
4
59 216.95
1685.426
2
59 332.18
1684.990
4
59 347.53
1674.861
10
59 706.45
6p2P°1/2–10s2S1/2
1669.619
40
59 893.91
21 418°7/2–81 3125/2
1667.952
2
59 953.78
1663.140
40
60 127.25
6p2P°3/2–10d2D5/2
1662.301
1
60 157.57
1659.027
1
60 276.30
1655.183
4
60 416.28
1652.559
5
60 512.21
1646.279
20
60 743.03
6p2P°1/2–9d 2D3/2
1645.964
1
60 754.66
1645.660
1
60 765.89
1641.768
1
60 909.96
6s2S1/2–60 910°3/2
1638.294
20
61 039.11
1636.072
3
61 122.00
1634.476
1
61 181.70
1634,392
2
61 184.81
1629.594
3
61 364.99
1624.290
20
61 565.38
5d2D5/2–7f2F°5/2
1624.074
500
61 573.54
5d2D5/2–7f2F°7/2
1623.441
2
61 597.56
1617.409
10
61 827.29
6p2P°3/2–11d2D5/2
1614.494
20
61 938.90
1609.344
1
62 137.12
1608.394
20
62 173.80
1606.196
20
62 258.92
1605.146
1
62 299.61
1604.210
3
62 336.00
1603.230
1
62 374.08
1600.011
10
62 499.57
1597.515
8
62 297.21
21 418°7/2–8d2D5/2
1595.458
2
62 677.92
1593.853
3
62 741.03
1588.880
500
62 937.70
5d2D3/2–7f2F°5/2
1586.760
3
63 021.49
1585.431
5
63 074.32
1582.608
2
63 186.85
1581.465
10
63 232.51
1578.465
3
63 352.69
6p2P°1/2–10d2D3/2
1576.053
1
63 449.62
1570.036
10
63 692.79
1569.707
5
63 706.17
6s2S1/2–7p2P°1/2
1564.773
10
63 907.03
1559.568
20
64 120.30
1559.160
60
64 137.09
1558.162
1
64 178.20
1557.830
100
64 191.87
6s2S1/2–64 191°3/2
1556.768
20
64 235.65
1554.296
20
64337.82
1553.348
5
64 377.08
1553.304
2
64 378.89
1552.328
2
64 419.38
1552.009
1
64 432.60
1550.099
2
64 511.99
1548.606
10
64 574.20
1548.417
20
64 582.07
1545.976
10
64 648.07
1543.631
1
64 782.32
1543.522
3
64 786.90
1543.132
2
64 803.27
1542.398
30
64 834.10
1542.334
30
64 836.81
1542.182
30
64 843.21
5d2D5/2–8f2F°5/2
1541.954
400
64 852.78
5d2D5/2–8f2F°7/2
1541.409
10
64 875.72
1541.349
1
64 878.24
1541.066
10
64 890.14
1539.774
2
64 944.58
1539.647
50
64 949.94
1538.520
10
64 997.55
1538.210
2
65 010.64
1537.321
10
65 048.22
1536.928
3
65 064.84
1535.372
10
65 130.82
1534.627
20
65 162.41
1532.810
5
65 239.64
1532.503
1
65 252.71
1531.412
3
65 299.20
1531.332
10
65 302.60
1531.286
30
65 304.56
1531.210
3
65 307.84
1529.082
1
65 398.70
1528.349
200
65 430.08
1528.156
20
65 438.35
1527.414
10
65 470.16
1526.993
20
65 488.20
1524.527
300
65 594.10
6s2S1/2–7p2P°3/2
1523.682
1
65 630.48
1523.389
10
65 643.12
1522.792
2
65 668.87
1522.506
1
65 681.19
1520.390
20
65 772.61
1520.018
10
65 788.68
1516.440
10
65 943.92
1514.794
2
66 015.56
1514.646
20
66 022.01
1514.339
20
66 035.41
1513.934
2
66 053.06
1510.824
60
66 189.02
6s2S1/2–66 189°3/2
1510.230
300
66 215.06
5d2D3/2–8f2F°5/2
1508.115
10
66 307.93
1507.601
1
66 330.54
1507.556
2
66 332.51
1504.995
3
66 445.42
1501.964
8
66 579.50
1501.044
1
66 620.29
1500.458
2
66 646.30
1495.337
2
66 874.57
1494.371
3
66 917.81
1493.009
200
66 978.82
5d2D5/2–9f2F°7/2
1492.938
4
66 982.01
5d2D5/2–9f2F°5/2
1490.084
1
67 110.29
1489.266
10
67 147.15
1488.287
3
67 191.36
1488.114
20
67 199.16
1488.024
3
67 203.21
1487.972
30
67 205.58
1487.778
20
67 214.32
1487.440
20
67 229.62
1485.212
2
67 330.44
1483.931
1
67 388.60
1483.059
1
67 428.22
1480.070
1
67 564.35
1479.446
40
67 592.85
1479.329
10
67 598.23
1476.163
1
67 743.19
1471.672
1
67 949.93
1469.843
50
68 034.48
1466.252
4
68 201.10
1464.696
2
68 273.56
1464.602
20
68 277.93
1463.994
10
68 306.30
1462.969
100
68 354.16
5d2D3/2–9f2F°5/2
1461.257
100
68 434.22
5d2D5/2–10f2F°7/2
1460.462
10
68 471.49
1459.983
5
68 493.93
1459.900
10
68 497.86
1459.034
7
68 538.51
1458.586
5
68 559.56
1457.117
10
68 628.65
1456.902
5
68 638.78
1456.344
8
68 665.07
1452.894
2
68 828.16
1446.341
10
69 140.00
1446.062
3
69 153.32
1442.834
1
69 308.05
1441.189
2
69 387.14
1439.358
60
69 475.43
5d2D5/2–11f2F°7/2
1436.952
2
69 591.73
1434.399
2
69 715.60
1433.013
10
69 783.06
1432.586
50
69 803.82
5d2D3/2–10f2F°5/2
1432.462
5
69 809.87
1431.565
5
69 853.61
1423.919
30
70 228.70
1423.562
30
70 246.35
5d2D5/2–12f2F°7/2
1422.553
20
70 296.17
1414.998
1
70 671.45
1414.440
5
70 699.36
1414.055
10
70 718.63
1412.829
4
70 779.95
1411.818
40
70 830.66
5d2D5/2–13f2F°7/2
1408.144
4
71 015.44
1407.597
2
71 043.08
1407.511
1
71 047.40
1404.477
3
71 200.88
1402.78
1
71 287.0
5d2D5/2–14f2F°7/2
1402.412
10
71 305.44
1401.850
30
71 334.32
1391.342
30
71 873.05
1377.736
5
72 582.85
Table III
The 4f14 (1S)nl energy levels of Yb ii. Units are cm−1.
The uncertainties of the values of the newly determined levels are about ±0.1 cm−1.
The effective quantum number n* is based on an ionization energy of 98 269 cm−1.
Levels found by Meggers (Ref. 1) are indicated by M. All other levels are newly derived.
The designation and J value of this level are changed from those given in Ref. 1.
The designation of this level is changed from that given in Ref. 1.