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All results from a given calculation for SiH3OH (silanol)

using model chemistry: B2PLYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-311G*
 hartrees
Energy at 0K-366.960381
Energy at 298.15K 
HF Energy-366.867935
Nuclear repulsion energy64.537740
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 B2PLYP/6-311G*
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' 3916 3916 67.22 88.57 0.30 0.46
2 A' 2301 2301 110.83 131.79 0.22 0.36
3 A' 2246 2246 118.83 179.61 0.10 0.19
4 A' 1048 1048 265.72 19.21 0.73 0.84
5 A' 992 992 133.18 24.80 0.75 0.86
6 A' 916 916 16.70 13.30 0.70 0.82
7 A' 831 831 215.71 9.28 0.30 0.46
8 A' 706 706 95.25 8.55 0.74 0.85
9 A" 2235 2235 210.08 82.59 0.75 0.86
10 A" 963 963 106.61 27.84 0.75 0.86
11 A" 740 740 93.91 16.82 0.75 0.86
12 A" 222 222 149.45 2.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8557.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8557.7 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 B2PLYP/6-311G*
ABC
2.61557 0.45610 0.44772

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.029 -0.534 0.000
O2 0.029 1.123 0.000
H3 1.447 -0.934 0.000
H4 -0.648 -1.097 1.195
H5 -0.648 -1.097 -1.195
H6 -0.787 1.621 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.65651.47381.48421.48422.3047
O21.65652.49862.60992.60990.9566
H31.47382.49862.41772.41773.3950
H41.48422.60992.41772.38922.9724
H51.48422.60992.41772.38922.9724
H62.30470.95663.39502.97242.9724

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 121.423 O2 Si1 H3 105.766
O2 Si1 H4 112.290 O2 Si1 H5 112.290
H3 Si1 H4 109.643 H3 Si1 H5 109.643
H4 Si1 H5 107.200
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.731      
2 O -0.793      
3 H -0.104      
4 H -0.132      
5 H -0.132      
6 H 0.430      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.568 0.101 0.000 1.571
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.268 -3.389 0.007
y -3.389 -20.303 0.016
z 0.007 0.016 -22.172
Traceless
 xyz
x 0.969 -3.389 0.007
y -3.389 0.917 0.016
z 0.007 0.016 -1.886
Polar
3z2-r2-3.773
x2-y20.035
xy-3.389
xz0.007
yz0.016


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.959 -0.063 -0.001
y -0.063 3.716 -0.001
z -0.001 -0.001 3.734


<r2> (average value of r2) Å2
<r2> 39.472
(<r2>)1/2 6.283