Vibrational Frequencies calculated at B3LYP/aug-cc-pVQZ
| Mode Number |
Symmetry |
Frequency (cm-1) |
Scaled Frequency (cm-1) |
IR Intensities (km mol-1) |
Raman Act (Å4/u) |
Dep P |
Dep U |
| 1 |
A |
3032 |
2938 |
5.33 |
|
|
|
| 2 |
A |
2221 |
2152 |
65.63 |
|
|
|
| 3 |
A |
1295 |
1255 |
12.32 |
|
|
|
| 4 |
A |
950 |
921 |
216.22 |
|
|
|
| 5 |
A |
692 |
670 |
11.45 |
|
|
|
| 6 |
A |
196 |
190 |
0.00 |
|
|
|
| 7 |
E |
3104 |
3008 |
8.25 |
|
|
|
| 7 |
E |
3104 |
3008 |
8.25 |
|
|
|
| 8 |
E |
2217 |
2148 |
140.65 |
|
|
|
| 8 |
E |
2217 |
2148 |
140.68 |
|
|
|
| 9 |
E |
1466 |
1420 |
2.50 |
|
|
|
| 9 |
E |
1466 |
1420 |
2.50 |
|
|
|
| 10 |
E |
964 |
934 |
42.59 |
|
|
|
| 10 |
E |
964 |
934 |
42.59 |
|
|
|
| 11 |
E |
890 |
862 |
58.06 |
|
|
|
| 11 |
E |
890 |
862 |
58.06 |
|
|
|
| 12 |
E |
524 |
508 |
10.13 |
|
|
|
| 12 |
E |
524 |
508 |
10.13 |
|
|
|
Unscaled Zero Point Vibrational Energy (zpe) 13358.0 cm
-1
Scaled (by 0.9689) Zero Point Vibrational Energy (zpe) 12942.5 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 B3LYP/aug-cc-pVQZ
Charges (e)
| Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
| 1 |
C |
-1.019 |
|
|
|
| 2 |
Si |
1.170 |
|
|
|
| 3 |
H |
0.225 |
|
|
|
| 4 |
H |
0.225 |
|
|
|
| 5 |
H |
0.225 |
|
|
|
| 6 |
H |
-0.276 |
|
|
|
| 7 |
H |
-0.276 |
|
|
|
| 8 |
H |
-0.276 |
|
|
|
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 |
-0.762 |
0.762 |
| CHELPG |
|
|
|
|
| AIM |
|
|
|
|
| ESP |
|
|
|
|
Electric Quadrupole moment
Quadrupole components in D Å
| Primitive |
| | x | y | z |
| x |
-23.197 |
0.000 |
0.000 |
| y |
0.000 |
-23.197 |
0.000 |
| z |
0.000 |
0.000 |
-23.508 |
|
| Traceless |
| | x | y | z |
| x |
0.156 |
0.000 |
0.000 |
| y |
0.000 |
0.156 |
0.000 |
| z |
0.000 |
0.000 |
-0.311 |
|
| Polar |
| 3z2-r2 | -0.622 |
| 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 |
6.112 |
0.000 |
0.000 |
| y |
0.000 |
6.112 |
0.000 |
| z |
0.000 |
0.000 |
7.206 |
<r2> (average value of r
2) Å
2
| <r2> |
50.383 |
| (<r2>)1/2 |
7.098 |