Vibrational Frequencies calculated at B3PW91/6-311G*
| 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 |
3042 |
2929 |
6.88 |
|
|
|
| 2 |
A1 |
2215 |
2133 |
68.48 |
|
|
|
| 3 |
A1 |
1316 |
1267 |
21.00 |
|
|
|
| 4 |
A1 |
940 |
905 |
231.16 |
|
|
|
| 5 |
A1 |
701 |
675 |
9.30 |
|
|
|
| 6 |
A2 |
190 |
183 |
0.00 |
|
|
|
| 7 |
E |
3122 |
3005 |
10.02 |
|
|
|
| 7 |
E |
3122 |
3005 |
10.02 |
|
|
|
| 8 |
E |
2215 |
2132 |
144.61 |
|
|
|
| 8 |
E |
2215 |
2132 |
144.63 |
|
|
|
| 9 |
E |
1481 |
1426 |
6.47 |
|
|
|
| 9 |
E |
1481 |
1426 |
6.47 |
|
|
|
| 10 |
E |
957 |
921 |
42.28 |
|
|
|
| 10 |
E |
957 |
921 |
42.28 |
|
|
|
| 11 |
E |
897 |
864 |
75.27 |
|
|
|
| 11 |
E |
897 |
864 |
75.27 |
|
|
|
| 12 |
E |
523 |
503 |
10.39 |
|
|
|
| 12 |
E |
523 |
503 |
10.39 |
|
|
|
Unscaled Zero Point Vibrational Energy (zpe) 13397.0 cm
-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 12897.2 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.
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G*
Charges (e)
| Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
| 1 |
C |
-0.991 |
|
|
|
| 2 |
Si |
0.459 |
|
|
|
| 3 |
H |
0.248 |
|
|
|
| 4 |
H |
0.248 |
|
|
|
| 5 |
H |
0.248 |
|
|
|
| 6 |
H |
-0.071 |
|
|
|
| 7 |
H |
-0.071 |
|
|
|
| 8 |
H |
-0.071 |
|
|
|
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 |
-0.792 |
0.792 |
| CHELPG |
|
|
|
|
| AIM |
|
|
|
|
| ESP |
|
|
|
|
Electric Quadrupole moment
Quadrupole components in D Å
| Primitive |
| | x | y | z |
| x |
-22.993 |
0.000 |
0.000 |
| y |
0.000 |
-22.993 |
0.000 |
| z |
0.000 |
0.000 |
-23.267 |
|
| Traceless |
| | x | y | z |
| x |
0.137 |
0.000 |
0.000 |
| y |
0.000 |
0.137 |
0.000 |
| z |
0.000 |
0.000 |
-0.274 |
|
| Polar |
| 3z2-r2 | -0.548 |
| 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 |
0.000 |
0.000 |
0.000 |
| y |
0.000 |
0.000 |
0.000 |
| z |
0.000 |
0.000 |
0.000 |
<r2> (average value of r
2) Å
2
| <r2> |
50.425 |
| (<r2>)1/2 |
7.101 |