Vibrational Frequencies calculated at B3LYP/cc-pVQZ
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' |
3890 |
3769 |
87.92 |
82.42 |
0.22 |
0.36 |
2 |
A' |
2265 |
2194 |
99.40 |
136.40 |
0.17 |
0.29 |
3 |
A' |
2219 |
2149 |
99.75 |
208.17 |
0.07 |
0.13 |
4 |
A' |
1003 |
971 |
185.33 |
2.63 |
0.74 |
0.85 |
5 |
A' |
977 |
947 |
95.68 |
7.20 |
0.75 |
0.86 |
6 |
A' |
904 |
876 |
17.96 |
6.73 |
0.44 |
0.61 |
7 |
A' |
836 |
810 |
181.69 |
5.90 |
0.24 |
0.39 |
8 |
A' |
688 |
667 |
66.38 |
3.19 |
0.67 |
0.80 |
9 |
A" |
2211 |
2142 |
175.58 |
63.97 |
0.75 |
0.86 |
10 |
A" |
959 |
929 |
75.35 |
8.36 |
0.75 |
0.86 |
11 |
A" |
724 |
701 |
63.89 |
6.50 |
0.75 |
0.86 |
12 |
A" |
198 |
191 |
99.68 |
0.97 |
0.75 |
0.86 |
Unscaled Zero Point Vibrational Energy (zpe) 8436.1 cm
-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 8172.9 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-pVQZ
Charges (e)
Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
1 |
Si |
0.511 |
|
|
|
2 |
O |
-0.522 |
|
|
|
3 |
H |
-0.056 |
|
|
|
4 |
H |
-0.079 |
|
|
|
5 |
H |
-0.079 |
|
|
|
6 |
H |
0.226 |
|
|
|
Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section
VII.A.3)
|
x |
y |
z |
Total |
|
-1.284 |
0.080 |
0.000 |
1.286 |
CHELPG |
|
|
|
|
AIM |
|
|
|
|
ESP |
|
|
|
|
Electric Quadrupole moment
Quadrupole components in D Å
Primitive |
| x | y | z |
x |
-20.177 |
-2.908 |
0.000 |
y |
-2.908 |
-20.555 |
0.000 |
z |
0.000 |
0.000 |
-22.009 |
|
Traceless |
| x | y | z |
x |
1.105 |
-2.908 |
0.000 |
y |
-2.908 |
0.538 |
0.000 |
z |
0.000 |
0.000 |
-1.643 |
|
Polar |
3z2-r2 | -3.286 |
x2-y2 | 0.378 |
xy | -2.908 |
xz | 0.000 |
yz | 0.000 |
|
Polarizabilities
Components of the polarizability tensor.
Units are
Å
3 (Angstrom cubed)
Change units.
|
x |
y |
z |
x |
4.770 |
-0.052 |
0.000 |
y |
-0.052 |
4.780 |
0.000 |
z |
0.000 |
0.000 |
4.680 |
<r2> (average value of r
2) Å
2
<r2> |
39.309 |
(<r2>)1/2 |
6.270 |