Calculated by Gaussian 98W A.7 at MP2 with cc-pVDZ basis set.
| Vibration | Symmetry | Wavenumber / cm-1 |
| 1 | A' | 3337 |
| 2 | A' | 3317 |
| 3 | A' | 3314 |
| 4 | A' | 3299 |
| 5 | A' | 3227 |
| 6 | A' | 1798 |
| 7 | A' | 1648 |
| 8 | A' | 1580 |
| 9 | A' | 1493 |
| 10 | A' | 1309 |
| 11 | A' | 1279 |
| 12 | A' | 1147 |
| 13 | A' | 1120 |
| 14 | A' | 1113 |
| 15 | A' | 1081 |
| 16 | A' | 1007 |
| 17 | A' | 847 |
| 18 | A' | 822 |
| 19 | A' | 770 |
| 20 | A' | 561 |
| 21 | A' | 516 |
| 22 | A' | 220 |
| 23 | A" | 3327 |
| 24 | A" | 3321 |
| 25 | A" | 3306 |
| 26 | A" | 1782 |
| 27 | A" | 1607 |
| 28 | A" | 1566 |
| 29 | A" | 1452 |
| 30 | A" | 1339 |
| 31 | A" | 1222 |
| 32 | A" | 1170 |
| 33 | A" | 1094 |
| 34 | A" | 1067 |
| 35 | A" | 954 |
| 36 | A" | 678 |
| 37 | A" | 456 |
| 38 | A" | 367 |
| 39 | A" | 0 |