Vibrational Frequencies calculated at HF/daug-cc-pVTZ
| Mode Number |
Symmetry |
Frequency (cm-1) |
Scaled Frequency (cm-1) |
IR Intensities (km mol-1) |
Raman Act (Å4/u) |
Dep P |
Dep U |
| 1 |
A1 |
3152 |
2852 |
8.54 |
|
|
|
| 2 |
A1 |
2308 |
2088 |
82.36 |
|
|
|
| 3 |
A1 |
1408 |
1274 |
14.99 |
|
|
|
| 4 |
A1 |
1029 |
931 |
268.11 |
|
|
|
| 5 |
A1 |
724 |
655 |
11.85 |
|
|
|
| 6 |
A2 |
212 |
191 |
0.00 |
|
|
|
| 7 |
E |
3221 |
2914 |
17.38 |
|
|
|
| 7 |
E |
3221 |
2914 |
17.38 |
|
|
|
| 8 |
E |
2294 |
2075 |
188.63 |
|
|
|
| 8 |
E |
2294 |
2075 |
188.63 |
|
|
|
| 9 |
E |
1576 |
1425 |
2.02 |
|
|
|
| 9 |
E |
1576 |
1425 |
2.02 |
|
|
|
| 10 |
E |
1035 |
936 |
67.49 |
|
|
|
| 10 |
E |
1035 |
936 |
67.49 |
|
|
|
| 11 |
E |
952 |
861 |
62.27 |
|
|
|
| 11 |
E |
952 |
861 |
62.27 |
|
|
|
| 12 |
E |
558 |
505 |
14.20 |
|
|
|
| 12 |
E |
558 |
505 |
14.20 |
|
|
|
Unscaled Zero Point Vibrational Energy (zpe) 14052.5 cm
-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 12711.9 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.
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ
Charges (e)
| Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
| 1 |
C |
-1.904 |
|
|
|
| 2 |
Si |
2.273 |
|
|
|
| 3 |
H |
0.445 |
|
|
|
| 4 |
H |
0.445 |
|
|
|
| 5 |
H |
0.445 |
|
|
|
| 6 |
H |
-0.569 |
|
|
|
| 7 |
H |
-0.569 |
|
|
|
| 8 |
H |
-0.569 |
|
|
|
Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section
VII.A.3)
| |
x |
y |
z |
Total |
| |
0.000 |
0.000 |
-0.711 |
0.711 |
| CHELPG |
|
|
|
|
| AIM |
|
|
|
|
| ESP |
|
|
|
|
Electric Quadrupole moment
Quadrupole components in D Å
| Primitive |
| | x | y | z |
| x |
-23.273 |
0.000 |
0.000 |
| y |
0.000 |
-23.273 |
0.000 |
| z |
0.000 |
0.000 |
-23.659 |
|
| Traceless |
| | x | y | z |
| x |
0.193 |
0.000 |
0.000 |
| y |
0.000 |
0.193 |
0.000 |
| z |
0.000 |
0.000 |
-0.386 |
|
| Polar |
| 3z2-r2 | -0.772 |
| x2-y2 | 0.000 |
| xy | 0.000 |
| xz | 0.000 |
| yz | 0.000 |
|
Polarizabilities
Components of the polarizability tensor.
Units are
Å
3 (Angstrom cubed)
Change units.
| |
x |
y |
z |
| x |
5.701 |
0.000 |
0.000 |
| y |
0.000 |
5.701 |
0.000 |
| z |
0.000 |
0.000 |
6.575 |
<r2> (average value of r
2) Å
2
| <r2> |
50.419 |
| (<r2>)1/2 |
7.101 |