Vibrational Frequencies calculated at HF/3-21G
| 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 |
3191 |
2890 |
9.37 |
|
|
|
| 2 |
A1 |
2275 |
2060 |
85.00 |
|
|
|
| 3 |
A1 |
1477 |
1338 |
21.82 |
|
|
|
| 4 |
A1 |
1003 |
908 |
334.68 |
|
|
|
| 5 |
A1 |
718 |
650 |
6.62 |
|
|
|
| 6 |
A2 |
175 |
159 |
0.00 |
|
|
|
| 7 |
E |
3264 |
2956 |
10.11 |
|
|
|
| 7 |
E |
3264 |
2956 |
10.11 |
|
|
|
| 8 |
E |
2260 |
2046 |
205.57 |
|
|
|
| 8 |
E |
2260 |
2046 |
205.57 |
|
|
|
| 9 |
E |
1636 |
1481 |
7.79 |
|
|
|
| 9 |
E |
1636 |
1481 |
7.79 |
|
|
|
| 10 |
E |
1033 |
935 |
57.35 |
|
|
|
| 10 |
E |
1033 |
935 |
57.35 |
|
|
|
| 11 |
E |
999 |
905 |
104.65 |
|
|
|
| 11 |
E |
999 |
905 |
104.65 |
|
|
|
| 12 |
E |
573 |
519 |
25.60 |
|
|
|
| 12 |
E |
573 |
519 |
25.60 |
|
|
|
Unscaled Zero Point Vibrational Energy (zpe) 14182.9 cm
-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 12844.0 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/3-21G
Charges (e)
| Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
| 1 |
C |
-1.044 |
-0.578 |
|
-0.719 |
| 2 |
Si |
0.966 |
0.936 |
|
1.130 |
| 3 |
H |
0.224 |
0.123 |
|
0.152 |
| 4 |
H |
0.224 |
0.123 |
|
0.152 |
| 5 |
H |
0.224 |
0.123 |
|
0.152 |
| 6 |
H |
-0.198 |
-0.243 |
|
-0.288 |
| 7 |
H |
-0.198 |
-0.242 |
|
-0.289 |
| 8 |
H |
-0.198 |
-0.242 |
|
-0.289 |
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 |
-0.633 |
0.633 |
| CHELPG |
0.000 |
-0.000 |
-0.598 |
0.598 |
| AIM |
|
|
|
|
| ESP |
-0.003 |
0.000 |
0.608 |
0.608 |
Electric Quadrupole moment
Quadrupole components in D Å
| Primitive |
| | x | y | z |
| x |
-24.051 |
0.000 |
0.000 |
| y |
0.000 |
-24.051 |
0.000 |
| z |
0.000 |
0.000 |
-24.285 |
|
| Traceless |
| | x | y | z |
| x |
0.117 |
0.000 |
0.000 |
| y |
0.000 |
0.117 |
0.000 |
| z |
0.000 |
0.000 |
-0.234 |
|
| Polar |
| 3z2-r2 | -0.469 |
| 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 |
4.441 |
0.000 |
0.000 |
| y |
0.000 |
4.441 |
0.000 |
| z |
0.000 |
0.000 |
4.939 |
<r2> (average value of r
2) Å
2
| <r2> |
51.839 |
| (<r2>)1/2 |
7.200 |