Vibrational Frequencies calculated at B3LYP/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 |
3056 |
2949 |
6.44 |
|
|
|
| 2 |
A1 |
2179 |
2103 |
63.73 |
|
|
|
| 3 |
A1 |
1370 |
1322 |
14.30 |
|
|
|
| 4 |
A1 |
916 |
884 |
214.37 |
|
|
|
| 5 |
A1 |
684 |
660 |
4.29 |
|
|
|
| 6 |
A2 |
177 |
171 |
0.00 |
|
|
|
| 7 |
E |
3133 |
3023 |
8.24 |
|
|
|
| 7 |
E |
3133 |
3023 |
8.24 |
|
|
|
| 8 |
E |
2186 |
2109 |
149.62 |
|
|
|
| 8 |
E |
2186 |
2109 |
149.63 |
|
|
|
| 9 |
E |
1537 |
1483 |
6.36 |
|
|
|
| 9 |
E |
1537 |
1483 |
6.36 |
|
|
|
| 10 |
E |
955 |
922 |
5.46 |
|
|
|
| 10 |
E |
955 |
922 |
5.46 |
|
|
|
| 11 |
E |
931 |
899 |
102.35 |
|
|
|
| 11 |
E |
931 |
899 |
102.35 |
|
|
|
| 12 |
E |
529 |
511 |
13.19 |
|
|
|
| 12 |
E |
529 |
511 |
13.19 |
|
|
|
Unscaled Zero Point Vibrational Energy (zpe) 13463.4 cm
-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 12990.8 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/3-21G
Charges (e)
| Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
| 1 |
C |
-0.916 |
|
|
-0.631 |
| 2 |
Si |
0.633 |
|
|
0.809 |
| 3 |
H |
0.212 |
|
|
0.147 |
| 4 |
H |
0.212 |
|
|
0.148 |
| 5 |
H |
0.212 |
|
|
0.148 |
| 6 |
H |
-0.118 |
|
|
-0.208 |
| 7 |
H |
-0.118 |
|
|
-0.207 |
| 8 |
H |
-0.118 |
|
|
-0.207 |
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 |
-0.713 |
0.713 |
| CHELPG |
|
|
|
|
| AIM |
|
|
|
|
| ESP |
0.002 |
-0.002 |
-0.673 |
0.673 |
Electric Quadrupole moment
Quadrupole components in D Å
| Primitive |
| | x | y | z |
| x |
-23.390 |
0.000 |
0.000 |
| y |
0.000 |
-23.390 |
0.000 |
| z |
0.000 |
0.000 |
-23.434 |
|
| Traceless |
| | x | y | z |
| x |
0.022 |
0.000 |
0.000 |
| y |
0.000 |
0.022 |
0.000 |
| z |
0.000 |
0.000 |
-0.044 |
|
| Polar |
| 3z2-r2 | -0.088 |
| 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 |
4.546 |
0.000 |
0.000 |
| y |
0.000 |
4.546 |
0.000 |
| z |
0.000 |
0.000 |
5.221 |
<r2> (average value of r
2) Å
2
| <r2> |
51.649 |
| (<r2>)1/2 |
7.187 |