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All results from a given calculation for SiH3OH (silanol)

using model chemistry: HF/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-366.189108
Energy at 298.15K 
HF Energy-366.189108
Nuclear repulsion energy64.821829
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 HF/TZVP
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' 4207 3822 119.35 69.23 0.28 0.44
2 A' 2355 2140 114.04 154.99 0.14 0.25
3 A' 2316 2104 142.81 159.29 0.14 0.24
4 A' 1069 971 257.07 14.59 0.73 0.85
5 A' 1052 956 156.49 15.57 0.75 0.86
6 A' 928 843 21.03 7.45 0.62 0.77
7 A' 889 808 261.89 7.43 0.44 0.61
8 A' 713 648 91.97 7.00 0.75 0.86
9 A" 2299 2089 231.55 71.01 0.75 0.86
10 A" 1032 938 120.31 19.47 0.75 0.86
11 A" 775 704 110.27 14.12 0.75 0.86
12 A" 193 175 137.75 2.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8913.6 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 8098.9 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 HF/TZVP
ABC
2.60138 0.46068 0.45240

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.030 -0.533 0.000
O2 0.030 1.118 0.000
H3 1.443 -0.956 0.000
H4 -0.661 -1.063 1.201
H5 -0.661 -1.063 -1.201
H6 -0.779 1.596 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.65051.47471.48291.48292.2775
O21.65052.50902.58322.58320.9400
H31.47472.50902.42422.42423.3836
H41.48292.58322.42422.40102.9198
H51.48292.58322.42422.40102.9198
H62.27750.94003.38362.91982.9198

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 120.591 O2 Si1 H3 106.669
O2 Si1 H4 110.942 O2 Si1 H5 110.942
H3 Si1 H4 110.097 H3 Si1 H5 110.097
H4 Si1 H5 108.104
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.800      
2 O -0.615      
3 H -0.151      
4 H -0.171      
5 H -0.171      
6 H 0.307      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.481 -0.149 0.000 1.489
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.201 -3.253 0.000
y -3.253 -20.659 0.000
z 0.000 0.000 -22.015
Traceless
 xyz
x 1.137 -3.253 0.000
y -3.253 0.449 0.000
z 0.000 0.000 -1.586
Polar
3z2-r2-3.172
x2-y20.458
xy-3.253
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.945 -0.065 0.000
y -0.065 3.561 0.000
z 0.000 0.000 3.787


<r2> (average value of r2) Å2
<r2> 39.242
(<r2>)1/2 6.264