Vibrational Frequencies calculated at B3LYP/CEP-31G
| 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 |
3160 |
3060 |
6.53 |
|
|
|
| 2 |
A1 |
2176 |
2107 |
36.55 |
|
|
|
| 3 |
A1 |
1420 |
1375 |
16.37 |
|
|
|
| 4 |
A1 |
961 |
931 |
16.06 |
|
|
|
| 5 |
A1 |
876 |
848 |
29.78 |
|
|
|
| 6 |
A2 |
749 |
726 |
0.00 |
|
|
|
| 7 |
B1 |
843 |
817 |
104.29 |
|
|
|
| 8 |
B1 |
431 |
418 |
4.54 |
|
|
|
| 9 |
B2 |
3267 |
3163 |
8.74 |
|
|
|
| 10 |
B2 |
2208 |
2138 |
137.36 |
|
|
|
| 11 |
B2 |
899 |
871 |
70.67 |
|
|
|
| 12 |
B2 |
500 |
484 |
12.21 |
|
|
|
Unscaled Zero Point Vibrational Energy (zpe) 8744.5 cm
-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 8468.1 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/CEP-31G
Charges (e)
| Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
| 1 |
C |
-0.531 |
|
|
|
| 2 |
Si |
0.156 |
|
|
|
| 3 |
H |
0.208 |
|
|
|
| 4 |
H |
0.208 |
|
|
|
| 5 |
H |
-0.020 |
|
|
|
| 6 |
H |
-0.020 |
|
|
|
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 |
0.461 |
0.461 |
| CHELPG |
|
|
|
|
| AIM |
|
|
|
|
| ESP |
|
|
|
|
Electric Quadrupole moment
Quadrupole components in D Å
| Primitive |
| | x | y | z |
| x |
-22.243 |
0.000 |
0.000 |
| y |
0.000 |
-19.303 |
0.000 |
| z |
0.000 |
0.000 |
-18.936 |
|
| Traceless |
| | x | y | z |
| x |
-3.123 |
0.000 |
0.000 |
| y |
0.000 |
1.286 |
0.000 |
| z |
0.000 |
0.000 |
1.838 |
|
| Polar |
| 3z2-r2 | 3.675 |
| x2-y2 | -2.940 |
| 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 |
3.737 |
0.000 |
0.000 |
| y |
0.000 |
4.014 |
0.000 |
| z |
0.000 |
0.000 |
7.932 |
<r2> (average value of r
2) Å
2
| <r2> |
34.213 |
| (<r2>)1/2 |
5.849 |