| Vibrational energy observed (cm−1)g | Calc. from Equation (16) | Calc. from Equation (17) |
| 4547 | 9150 | 8352 |
| 13,265 | 15,358 | 14,029 |
| 21,481 | 21,566 | 21,003 |
| 29,195 | 27,774 | 27,977 |
| 36,407 | 33,982 | 34,735 |
| 43,117 | 40,190 | 41,276 |
| 49,331 | 46,398 | 47,548 |
| 55,037 | 52,606 | 53,603 |
| 60,237 | 58,814 | 59,442 |
| 64,931 | 65,022 | 65,064 |
| 69,137 | 71,230 | 70,579 |
| 72,836 | 77,438 | 75,931 |