Vibrational Frequencies calculated at PBEPBEultrafine/aug-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 |
A' |
3774 |
3731 |
71.77 |
92.51 |
0.18 |
0.31 |
2 |
A' |
2196 |
2171 |
92.75 |
127.62 |
0.22 |
0.35 |
3 |
A' |
2143 |
2119 |
81.78 |
269.23 |
0.04 |
0.08 |
4 |
A' |
946 |
935 |
145.89 |
1.90 |
0.74 |
0.85 |
5 |
A' |
928 |
917 |
82.16 |
4.68 |
0.66 |
0.79 |
6 |
A' |
888 |
878 |
40.09 |
7.05 |
0.42 |
0.60 |
7 |
A' |
809 |
800 |
139.04 |
9.28 |
0.20 |
0.33 |
8 |
A' |
657 |
650 |
55.56 |
3.08 |
0.60 |
0.75 |
9 |
A" |
2143 |
2119 |
153.05 |
70.65 |
0.75 |
0.86 |
10 |
A" |
909 |
899 |
57.45 |
6.55 |
0.75 |
0.86 |
11 |
A" |
682 |
675 |
51.87 |
5.17 |
0.75 |
0.86 |
12 |
A" |
191 |
189 |
88.60 |
0.59 |
0.75 |
0.86 |
Unscaled Zero Point Vibrational Energy (zpe) 8132.4 cm
-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 8041.3 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 PBEPBEultrafine/aug-cc-pVTZ
Charges (e)
Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
1 |
Si |
0.732 |
|
|
|
2 |
O |
-0.453 |
|
|
|
3 |
H |
-0.118 |
|
|
|
4 |
H |
-0.130 |
|
|
|
5 |
H |
-0.130 |
|
|
|
6 |
H |
0.098 |
|
|
|
Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section
VII.A.3)
|
x |
y |
z |
Total |
|
-1.253 |
-0.020 |
0.000 |
1.253 |
CHELPG |
|
|
|
|
AIM |
|
|
|
|
ESP |
|
|
|
|
Electric Quadrupole moment
Quadrupole components in D Å
Primitive |
| x | y | z |
x |
-20.215 |
-2.877 |
0.000 |
y |
-2.877 |
-20.926 |
0.000 |
z |
0.000 |
0.000 |
-22.162 |
|
Traceless |
| x | y | z |
x |
1.329 |
-2.877 |
0.000 |
y |
-2.877 |
0.263 |
0.000 |
z |
0.000 |
0.000 |
-1.592 |
|
Polar |
3z2-r2 | -3.184 |
x2-y2 | 0.711 |
xy | -2.877 |
xz | 0.000 |
yz | 0.000 |
|
Polarizabilities
Components of the polarizability tensor.
Units are
Å
3 (Angstrom cubed)
Change units.
|
x |
y |
z |
x |
5.289 |
-0.022 |
0.000 |
y |
-0.022 |
5.462 |
0.000 |
z |
0.000 |
0.000 |
5.242 |
<r2> (average value of r
2) Å
2
<r2> |
40.021 |
(<r2>)1/2 |
6.326 |