State | Parametrers | ScOb | ScSa | ScSea | ScTea | Trend |
Electronegativity of the chalcogenides |
| 3.44 | 2.58 | 2.55 | 2.1 |
|
Difference in Electronegativity |
| 2.08 | 1.22 | 1.19 | 0.74 |
|
X2Σ+ | Te (cm−1) | 0.0 (GS) | 0.0 (GS) | 0.0 (GS) | 0.0 (GS) | Same GS* |
Re (Ǻ) | 1.701 | 2.181 | 2.379 | 2.562 |
| |
ωe (cm−1) | 1010 | 540.6 | 348.7 | 301.9 |
| |
Be × 102 (cm−1) | 49.39 | 18.93 | 10.39 | 7.73 |
| |
(1)2Δ | Te (cm−1) | 15,731.3 (1st ES) | 8760 (1st ES) | 8322 (1st ES) | 9039 (8th ES) | Exception |
Re (Ǻ) | 1.777 | 2.229 | 2.409 | 2.541 |
| |
ωe (cm−1) | 886.1 | 581.6 | 401.1 | 361.9 |
| |
Be × 102 (cm−1) | 45.22 | 18.13 | 10.19 | 7.85 |
| |
(2)2Σ+ | Te (cm−1) | 21,071.2 (2nd ES) | 11,604 (5th ES) | 10,437 (5th ES) | 7671 (5th ES) |
|
Re (Ǻ) | 1.757 | 2.222 | 2.399 | 2.568 |
| |
ωe (cm−1) | 831.1 | 557.4 | 380.5 | 328.1 |
| |
Be × 102 (cm−1) | 46.27 | 18.24 | 10.21 | 7.69 |
| |
(1)4Σ+ | Te (cm−1) | 28,364.8 (6th ES) | 12,828 (7th ES) | 8486 (2nd ES) | 7287 (4th ES) |
|
Re (Ǻ) | 2.059 | 2.522 | 2.695 | 2.846 |
| |
ωe (cm−1) | 624.1 | 350.6 | 252.8 | 231.9 |
| |
Be × 102 (cm−1) | 35.46 | 14.16 | 8.11 | 6.26 |
| |
(1)4Δ | Te (cm−1) | 28,918.2 (7th ES) | 13,581 (8th ES) | 9339 (3rd ES) | 8171 (6th ES) |
|
Re (Ǻ) | 1.993 | 2.537 | 2.713 | 2.865 |
| |
ωe (cm−1) | 653.9 | 344.9 | 246.5 | 227.2 |
| |
Be × 102 (cm−1) | 33.85 | 13.99 | 7.99 | 6.18 |
|