Vibrational Frequencies calculated at mPW1PW91/6-31G(2df,p)
| 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 |
3070 |
2930 |
2.79 |
|
|
|
| 2 |
A |
2225 |
2125 |
62.24 |
|
|
|
| 3 |
A |
1290 |
1232 |
10.76 |
|
|
|
| 4 |
A |
942 |
899 |
195.95 |
|
|
|
| 5 |
A |
704 |
672 |
9.62 |
|
|
|
| 6 |
A |
201 |
192 |
0.00 |
|
|
|
| 7 |
E |
3162 |
3018 |
5.00 |
|
|
|
| 7 |
E |
3162 |
3018 |
5.00 |
|
|
|
| 8 |
E |
2227 |
2126 |
132.69 |
|
|
|
| 8 |
E |
2227 |
2126 |
132.71 |
|
|
|
| 9 |
E |
1464 |
1398 |
2.20 |
|
|
|
| 9 |
E |
1464 |
1398 |
2.20 |
|
|
|
| 10 |
E |
957 |
913 |
35.29 |
|
|
|
| 10 |
E |
957 |
913 |
35.29 |
|
|
|
| 11 |
E |
887 |
847 |
64.44 |
|
|
|
| 11 |
E |
887 |
847 |
64.44 |
|
|
|
| 12 |
E |
517 |
494 |
6.25 |
|
|
|
| 12 |
E |
517 |
494 |
6.25 |
|
|
|
Unscaled Zero Point Vibrational Energy (zpe) 13430.0 cm
-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 12821.6 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 mPW1PW91/6-31G(2df,p)
Charges (e)
| Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
| 1 |
C |
-0.546 |
|
|
|
| 2 |
Si |
0.025 |
|
|
|
| 3 |
H |
0.163 |
|
|
|
| 4 |
H |
0.163 |
|
|
|
| 5 |
H |
0.163 |
|
|
|
| 6 |
H |
0.011 |
|
|
|
| 7 |
H |
0.011 |
|
|
|
| 8 |
H |
0.011 |
|
|
|
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 |
-0.871 |
0.871 |
| CHELPG |
|
|
|
|
| AIM |
|
|
|
|
| ESP |
|
|
|
|
Electric Quadrupole moment
Quadrupole components in D Å
| Primitive |
| | x | y | z |
| x |
-22.526 |
0.000 |
0.000 |
| y |
0.000 |
-22.526 |
0.000 |
| z |
0.000 |
0.000 |
-22.591 |
|
| Traceless |
| | x | y | z |
| x |
0.032 |
0.000 |
0.000 |
| y |
0.000 |
0.032 |
0.000 |
| z |
0.000 |
0.000 |
-0.065 |
|
| Polar |
| 3z2-r2 | -0.129 |
| 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 |
5.029 |
0.000 |
0.000 |
| y |
0.000 |
5.028 |
0.000 |
| z |
0.000 |
0.000 |
5.837 |
<r2> (average value of r
2) Å
2
| <r2> |
49.879 |
| (<r2>)1/2 |
7.063 |