Vibrational Frequencies calculated at B3LYP/cc-pVTZ
| 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 |
3032 |
2930 |
5.30 |
|
|
|
| 2 |
A1 |
2213 |
2139 |
65.40 |
|
|
|
| 3 |
A1 |
1299 |
1255 |
10.65 |
|
|
|
| 4 |
A1 |
945 |
913 |
212.92 |
|
|
|
| 5 |
A1 |
691 |
667 |
11.62 |
|
|
|
| 6 |
A2 |
197 |
191 |
0.00 |
|
|
|
| 7 |
E |
3103 |
2999 |
8.92 |
|
|
|
| 7 |
E |
3103 |
2999 |
8.92 |
|
|
|
| 8 |
E |
2214 |
2140 |
139.57 |
|
|
|
| 8 |
E |
2214 |
2140 |
139.58 |
|
|
|
| 9 |
E |
1467 |
1418 |
2.37 |
|
|
|
| 9 |
E |
1467 |
1418 |
2.37 |
|
|
|
| 10 |
E |
961 |
929 |
41.35 |
|
|
|
| 10 |
E |
961 |
929 |
41.36 |
|
|
|
| 11 |
E |
891 |
861 |
59.50 |
|
|
|
| 11 |
E |
891 |
861 |
59.50 |
|
|
|
| 12 |
E |
524 |
507 |
9.95 |
|
|
|
| 12 |
E |
524 |
507 |
9.94 |
|
|
|
Unscaled Zero Point Vibrational Energy (zpe) 13347.3 cm
-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 12901.5 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/cc-pVTZ
Charges (e)
| Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
| 1 |
C |
-0.385 |
|
|
-0.490 |
| 2 |
Si |
0.214 |
|
|
0.800 |
| 3 |
H |
0.104 |
|
|
0.110 |
| 4 |
H |
0.104 |
|
|
0.108 |
| 5 |
H |
0.104 |
|
|
0.108 |
| 6 |
H |
-0.047 |
|
|
-0.212 |
| 7 |
H |
-0.047 |
|
|
-0.212 |
| 8 |
H |
-0.047 |
|
|
-0.212 |
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 |
-0.785 |
0.785 |
| CHELPG |
|
|
|
|
| AIM |
|
|
|
|
| ESP |
-0.006 |
0.000 |
-0.735 |
0.735 |
Electric Quadrupole moment
Quadrupole components in D Å
| Primitive |
| | x | y | z |
| x |
-23.217 |
0.000 |
0.000 |
| y |
0.000 |
-23.217 |
0.000 |
| z |
0.000 |
0.000 |
-23.481 |
|
| Traceless |
| | x | y | z |
| x |
0.132 |
0.000 |
0.000 |
| y |
0.000 |
0.132 |
0.000 |
| z |
0.000 |
0.000 |
-0.264 |
|
| Polar |
| 3z2-r2 | -0.528 |
| 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 |
5.786 |
0.000 |
0.000 |
| y |
0.000 |
5.786 |
0.000 |
| z |
0.000 |
0.000 |
6.679 |
<r2> (average value of r
2) Å
2
| <r2> |
50.553 |
| (<r2>)1/2 |
7.110 |