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 |
A' |
3626 |
3488 |
39.97 |
124.08 |
0.32 |
0.48 |
2 |
A' |
2312 |
2224 |
116.57 |
94.39 |
0.22 |
0.37 |
3 |
A' |
2250 |
2165 |
123.68 |
126.75 |
0.10 |
0.18 |
4 |
A' |
1083 |
1042 |
245.14 |
13.33 |
0.63 |
0.77 |
5 |
A' |
969 |
932 |
104.58 |
20.65 |
0.74 |
0.85 |
6 |
A' |
946 |
910 |
1.68 |
16.03 |
0.63 |
0.77 |
7 |
A' |
796 |
766 |
132.38 |
8.82 |
0.33 |
0.49 |
8 |
A' |
705 |
678 |
179.17 |
5.12 |
0.70 |
0.82 |
9 |
A" |
2240 |
2155 |
212.42 |
55.54 |
0.75 |
0.86 |
10 |
A" |
936 |
900 |
94.73 |
23.73 |
0.75 |
0.86 |
11 |
A" |
762 |
733 |
87.84 |
10.22 |
0.75 |
0.86 |
12 |
A" |
276 |
265 |
147.65 |
4.00 |
0.75 |
0.86 |
Unscaled Zero Point Vibrational Energy (zpe) 8450.1 cm
-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 8129.0 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 |
Si |
0.548 |
|
|
|
2 |
O |
-0.608 |
|
|
|
3 |
H |
-0.089 |
|
|
|
4 |
H |
-0.112 |
|
|
|
5 |
H |
-0.112 |
|
|
|
6 |
H |
0.372 |
|
|
|
Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section
VII.A.3)
|
x |
y |
z |
Total |
|
-1.614 |
0.581 |
0.000 |
1.715 |
CHELPG |
|
|
|
|
AIM |
|
|
|
|
ESP |
|
|
|
|
Electric Quadrupole moment
Quadrupole components in D Å
Primitive |
| x | y | z |
x |
-20.056 |
-3.279 |
0.000 |
y |
-3.279 |
-19.500 |
0.000 |
z |
0.000 |
0.000 |
-21.743 |
|
Traceless |
| x | y | z |
x |
0.566 |
-3.279 |
0.000 |
y |
-3.279 |
1.399 |
0.000 |
z |
0.000 |
0.000 |
-1.966 |
|
Polar |
3z2-r2 | -3.931 |
x2-y2 | -0.555 |
xy | -3.279 |
xz | 0.000 |
yz | 0.000 |
|
Polarizabilities
Components of the polarizability tensor.
Units are
Å
3 (Angstrom cubed)
Change units.
|
x |
y |
z |
x |
3.374 |
-0.230 |
0.000 |
y |
-0.230 |
3.553 |
0.000 |
z |
0.000 |
0.000 |
3.045 |
<r2> (average value of r
2) Å
2
<r2> |
39.364 |
(<r2>)1/2 |
6.274 |