Vibrational Frequencies calculated at PBE1PBE/cc-pVDZ
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' |
3891 |
3741 |
83.64 |
80.88 |
0.28 |
0.43 |
2 |
A' |
2251 |
2164 |
99.87 |
113.91 |
0.27 |
0.43 |
3 |
A' |
2198 |
2113 |
84.90 |
197.71 |
0.08 |
0.14 |
4 |
A' |
992 |
954 |
172.88 |
10.12 |
0.71 |
0.83 |
5 |
A' |
948 |
912 |
98.56 |
15.20 |
0.75 |
0.86 |
6 |
A' |
914 |
879 |
62.05 |
13.88 |
0.75 |
0.85 |
7 |
A' |
836 |
804 |
111.92 |
8.23 |
0.25 |
0.40 |
8 |
A' |
683 |
657 |
62.74 |
7.20 |
0.71 |
0.83 |
9 |
A" |
2196 |
2112 |
169.92 |
72.90 |
0.75 |
0.86 |
10 |
A" |
925 |
890 |
70.44 |
21.09 |
0.75 |
0.86 |
11 |
A" |
708 |
681 |
67.63 |
13.75 |
0.75 |
0.86 |
12 |
A" |
223 |
215 |
105.49 |
2.50 |
0.75 |
0.86 |
Unscaled Zero Point Vibrational Energy (zpe) 8383.2 cm
-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 8060.4 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/cc-pVDZ
Charges (e)
Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
1 |
Si |
0.412 |
|
|
|
2 |
O |
-0.372 |
|
|
|
3 |
H |
-0.056 |
|
|
|
4 |
H |
-0.078 |
|
|
|
5 |
H |
-0.078 |
|
|
|
6 |
H |
0.172 |
|
|
|
Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section
VII.A.3)
|
x |
y |
z |
Total |
|
-1.361 |
-0.064 |
0.000 |
1.363 |
CHELPG |
|
|
|
|
AIM |
|
|
|
|
ESP |
|
|
|
|
Electric Quadrupole moment
Quadrupole components in D Å
Primitive |
| x | y | z |
x |
-19.746 |
-2.901 |
0.000 |
y |
-2.901 |
-20.419 |
0.000 |
z |
0.000 |
0.000 |
-21.705 |
|
Traceless |
| x | y | z |
x |
1.317 |
-2.901 |
0.000 |
y |
-2.901 |
0.306 |
0.000 |
z |
0.000 |
0.000 |
-1.623 |
|
Polar |
3z2-r2 | -3.246 |
x2-y2 | 0.674 |
xy | -2.901 |
xz | 0.000 |
yz | 0.000 |
|
Polarizabilities
Components of the polarizability tensor.
Units are
Å
3 (Angstrom cubed)
Change units.
|
x |
y |
z |
x |
4.224 |
-0.089 |
0.000 |
y |
-0.089 |
4.064 |
0.000 |
z |
0.000 |
0.000 |
4.015 |
<r2> (average value of r
2) Å
2
<r2> |
39.898 |
(<r2>)1/2 |
6.316 |