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All results from a given calculation for SiH3OH (silanol)

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-362.629998
Energy at 298.15K 
HF Energy-362.629998
Nuclear repulsion energy62.745858
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at BLYP/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3506 3244 54.05 48.15 0.31 0.47
2 A' 2621 2425 26.04 40.96 0.55 0.71
3 A' 2508 2320 36.70 74.08 0.05 0.10
4 A' 1253 1159 15.74 10.84 0.67 0.80
5 A' 1109 1026 127.24 20.39 0.75 0.86
6 A' 1069 989 179.27 11.84 0.75 0.85
7 A' 811 750 4.76 6.11 0.32 0.48
8 A' 699 647 65.85 3.72 0.70 0.82
9 A" 2544 2354 67.15 45.52 0.75 0.86
10 A" 1065 985 61.98 19.02 0.75 0.86
11 A" 698 646 57.51 8.68 0.75 0.86
12 A" 298 275 53.37 8.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9090.2 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 8410.3 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.
Rotational Constants (cm-1) from geometry optimized at BLYP/STO-3G
ABC
2.54329 0.42941 0.41830

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.036 -0.552 0.000
O2 0.036 1.187 0.000
H3 1.438 -0.937 0.000
H4 -0.624 -1.120 1.177
H5 -0.624 -1.120 -1.177
H6 -0.981 1.411 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.73901.45351.46431.46432.2112
O21.73902.54442.67282.67281.0415
H31.45352.54442.38142.38143.3708
H41.46432.67282.38142.35432.8144
H51.46432.67282.38142.35432.8144
H62.21121.04153.37082.81442.8144

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 102.441 O2 Si1 H3 105.336
O2 Si1 H4 112.821 O2 Si1 H5 112.821
H3 Si1 H4 109.406 H3 Si1 H5 109.406
H4 Si1 H5 107.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.615      
2 O -0.341      
3 H -0.131      
4 H -0.140      
5 H -0.140      
6 H 0.138      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.068 -0.312 0.000 1.113
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.782 -1.773 0.000
y -1.773 -19.805 0.000
z 0.000 0.000 -19.149
Traceless
 xyz
x 1.695 -1.773 0.000
y -1.773 -1.339 0.000
z 0.000 0.000 -0.355
Polar
3z2-r2-0.710
x2-y22.023
xy-1.773
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.019 -0.241 0.000
y -0.241 2.330 0.000
z 0.000 0.000 1.495


<r2> (average value of r2) Å2
<r2> 39.337
(<r2>)1/2 6.272