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All results from a given calculation for SiH3OH (silanol)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-367.111768
Energy at 298.15K 
HF Energy-367.111768
Nuclear repulsion energy64.460289
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 B1B95/6-31G*
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' 3878 3681 75.66 85.80 0.29 0.45
2 A' 2311 2194 138.63 99.52 0.26 0.42
3 A' 2255 2141 122.77 153.79 0.08 0.16
4 A' 1022 970 219.41 15.86 0.68 0.81
5 A' 972 923 112.84 17.98 0.75 0.86
6 A' 915 869 58.21 13.89 0.74 0.85
7 A' 859 815 162.25 7.78 0.21 0.34
8 A' 689 654 71.94 6.07 0.68 0.81
9 A" 2250 2136 234.44 64.11 0.75 0.86
10 A" 942 894 86.91 22.32 0.75 0.86
11 A" 726 689 82.12 11.39 0.75 0.86
12 A" 229 217 121.18 2.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8523.5 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 8091.4 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.
Rotational Constants (cm-1) from geometry optimized at B1B95/6-31G*
ABC
2.57291 0.45693 0.44781

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.030 -0.532 0.000
O2 0.030 1.128 0.000
H3 1.453 -0.936 0.000
H4 -0.646 -1.097 1.200
H5 -0.646 -1.097 -1.200
H6 -0.831 1.556 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.65941.47851.48881.48882.2587
O21.65942.50602.61652.61650.9623
H31.47852.50602.42302.42303.3801
H41.48882.61652.42302.39922.9177
H51.48882.61652.42302.39922.9177
H62.25870.96233.38012.91772.9177

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 116.443 O2 Si1 H3 105.849
O2 Si1 H4 112.316 O2 Si1 H5 112.316
H3 Si1 H4 109.483 H3 Si1 H5 109.483
H4 Si1 H5 107.366
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.553      
2 O -0.718      
3 H -0.073      
4 H -0.095      
5 H -0.095      
6 H 0.429      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.497 0.016 0.000 1.497
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.572 -3.102 0.000
y -3.102 -20.042 0.000
z 0.000 0.000 -21.551
Traceless
 xyz
x 1.224 -3.102 0.000
y -3.102 0.520 0.000
z 0.000 0.000 -1.743
Polar
3z2-r2-3.487
x2-y20.469
xy-3.102
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.639 -0.119 0.000
y -0.119 3.587 0.000
z 0.000 0.000 3.406


<r2> (average value of r2) Å2
<r2> 39.105
(<r2>)1/2 6.253