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All results from a given calculation for SiH3OH (silanol)

using model chemistry: B3PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-367.137370
Energy at 298.15K 
HF Energy-367.137370
Nuclear repulsion energy64.677195
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 B3PW91/6-311+G(3df,2p)
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' 3938 3769 92.75 76.44 0.21 0.35
2 A' 2256 2160 97.13 124.79 0.19 0.32
3 A' 2209 2115 90.24 216.76 0.06 0.11
4 A' 988 946 174.16 2.05 0.74 0.85
5 A' 966 925 87.96 6.86 0.74 0.85
6 A' 902 864 15.31 7.13 0.40 0.57
7 A' 834 798 181.22 6.35 0.22 0.36
8 A' 680 651 65.17 3.19 0.69 0.82
9 A" 2205 2111 163.84 64.85 0.75 0.86
10 A" 948 907 66.62 7.88 0.75 0.86
11 A" 714 684 60.79 6.01 0.75 0.86
12 A" 187 179 98.71 0.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8413.3 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 8054.1 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 B3PW91/6-311+G(3df,2p)
ABC
2.57460 0.46034 0.45161

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.030 -0.532 0.000
O2 0.030 1.120 0.000
H3 1.453 -0.933 0.000
H4 -0.650 -1.079 1.204
H5 -0.650 -1.079 -1.204
H6 -0.811 1.576 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.65171.47871.48701.48702.2693
O21.65172.49812.59772.59770.9565
H31.47872.49812.42782.42783.3796
H41.48702.59772.42782.40712.9199
H51.48702.59772.42782.40712.9199
H62.26930.95653.37962.91992.9199

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 118.481 O2 Si1 H3 105.751
O2 Si1 H4 111.610 O2 Si1 H5 111.610
H3 Si1 H4 109.895 H3 Si1 H5 109.895
H4 Si1 H5 108.071
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.535      
2 O -0.505      
3 H -0.073      
4 H -0.080      
5 H -0.080      
6 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.296 0.075 0.000 1.298
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.928 -2.928 0.000
y -2.928 -20.453 0.000
z 0.000 0.000 -21.858
Traceless
 xyz
x 1.228 -2.928 0.000
y -2.928 0.439 0.000
z 0.000 0.000 -1.667
Polar
3z2-r2-3.334
x2-y20.525
xy-2.928
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.783 -0.023 0.000
y -0.023 4.869 0.000
z 0.000 0.000 4.749


<r2> (average value of r2) Å2
<r2> 39.167
(<r2>)1/2 6.258