Vibrational Frequencies calculated at PBE1PBE/daug-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' |
3935 |
3935 |
92.90 |
81.40 |
0.18 |
0.31 |
2 |
A' |
2258 |
2258 |
96.49 |
128.51 |
0.18 |
0.31 |
3 |
A' |
2211 |
2211 |
85.81 |
251.24 |
0.05 |
0.09 |
4 |
A' |
980 |
980 |
164.84 |
1.56 |
0.75 |
0.86 |
5 |
A' |
961 |
961 |
90.22 |
4.72 |
0.71 |
0.83 |
6 |
A' |
906 |
906 |
19.17 |
7.31 |
0.34 |
0.51 |
7 |
A' |
846 |
846 |
179.73 |
5.84 |
0.23 |
0.37 |
8 |
A' |
678 |
678 |
61.49 |
2.74 |
0.63 |
0.77 |
9 |
A" |
2209 |
2209 |
159.73 |
62.58 |
0.75 |
0.86 |
10 |
A" |
942 |
942 |
65.91 |
5.90 |
0.75 |
0.86 |
11 |
A" |
712 |
712 |
61.72 |
4.68 |
0.75 |
0.86 |
12 |
A" |
188 |
188 |
95.85 |
0.60 |
0.75 |
0.86 |
Unscaled Zero Point Vibrational Energy (zpe) 8412.3 cm
-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8412.3 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 PBE1PBE/daug-cc-pVTZ
Charges (e)
Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
1 |
Si |
0.920 |
|
|
|
2 |
O |
-0.204 |
|
|
|
3 |
H |
-0.237 |
|
|
|
4 |
H |
-0.243 |
|
|
|
5 |
H |
-0.243 |
|
|
|
6 |
H |
0.007 |
|
|
|
Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section
VII.A.3)
|
x |
y |
z |
Total |
|
-1.277 |
0.011 |
0.000 |
1.277 |
CHELPG |
|
|
|
|
AIM |
|
|
|
|
ESP |
|
|
|
|
Electric Quadrupole moment
Quadrupole components in D Å
Primitive |
| x | y | z |
x |
-20.027 |
-2.904 |
0.000 |
y |
-2.904 |
-20.645 |
0.000 |
z |
0.000 |
0.000 |
-21.922 |
|
Traceless |
| x | y | z |
x |
1.257 |
-2.904 |
0.000 |
y |
-2.904 |
0.329 |
0.000 |
z |
0.000 |
0.000 |
-1.586 |
|
Polar |
3z2-r2 | -3.172 |
x2-y2 | 0.618 |
xy | -2.904 |
xz | 0.000 |
yz | 0.000 |
|
Polarizabilities
Components of the polarizability tensor.
Units are
Å
3 (Angstrom cubed)
Change units.
|
x |
y |
z |
x |
5.005 |
-0.031 |
0.000 |
y |
-0.031 |
5.078 |
0.000 |
z |
0.000 |
0.000 |
4.951 |
<r2> (average value of r
2) Å
2
<r2> |
39.368 |
(<r2>)1/2 |
6.274 |