Vibrational Frequencies calculated at MP2/6-31G(2df,p)
| Mode Number |
Symmetry |
Frequency (cm-1) |
Scaled Frequency (cm-1) |
IR Intensities (km mol-1) |
Raman Act (Å4/u) |
Dep P |
Dep U |
| 1 |
Σ |
1729 |
1633 |
121.45 |
119.20 |
0.31 |
0.47 |
| 2 |
Σ |
1081 |
1021 |
0.22 |
9.82 |
0.32 |
0.48 |
| 3 |
Π |
419 |
395 |
3.89 |
0.01 |
0.75 |
0.86 |
| 3 |
Π |
419 |
395 |
3.89 |
0.01 |
0.75 |
0.86 |
Unscaled Zero Point Vibrational Energy (zpe) 1823.4 cm
-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 1722.2 cm
-1
See section
III.C.1 List or set vibrational scaling factors
to change the scale factors used here.
See section
III.C.2
Calculate a vibrational scaling factor for a given set of molecules
to determine the least squares best scaling factor.