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All results from a given calculation for SiH3OH (silanol)

using model chemistry: B3LYP/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 B3LYP/6-31G**
 hartrees
Energy at 0K-367.152087
Energy at 298.15K 
HF Energy-367.152087
Nuclear repulsion energy64.290389
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 B3LYP/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' 3887 3735 64.36 89.37 0.28 0.44
2 A' 2275 2186 127.49 101.25 0.24 0.39
3 A' 2220 2133 119.46 149.99 0.09 0.16
4 A' 1032 991 218.84 14.92 0.69 0.81
5 A' 976 938 107.45 17.92 0.75 0.86
6 A' 912 877 44.67 12.40 0.71 0.83
7 A' 845 812 164.80 7.61 0.19 0.32
8 A' 696 668 71.25 5.78 0.67 0.80
9 A" 2213 2127 221.68 63.12 0.75 0.86
10 A" 949 911 87.40 20.74 0.75 0.86
11 A" 731 702 76.53 11.09 0.75 0.86
12 A" 222 213 115.58 2.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8478.2 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 8145.8 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 B3LYP/6-31G**
ABC
2.57006 0.45387 0.44501

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.030 -0.534 0.000
O2 0.030 1.131 0.000
H3 1.454 -0.940 0.000
H4 -0.646 -1.101 1.202
H5 -0.646 -1.101 -1.202
H6 -0.829 1.566 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.66491.48031.49071.49072.2688
O21.66492.51312.62322.62320.9632
H31.48032.51312.42442.42443.3899
H41.49072.62322.42442.40302.9304
H51.49072.62322.42442.40302.9304
H62.26880.96323.38992.93042.9304

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 116.834 O2 Si1 H3 105.929
O2 Si1 H4 112.349 O2 Si1 H5 112.349
H3 Si1 H4 109.380 H3 Si1 H5 109.380
H4 Si1 H5 107.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.637      
2 O -0.613      
3 H -0.101      
4 H -0.123      
5 H -0.123      
6 H 0.322      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.459 0.015 0.000 1.459
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.694 -3.017 0.000
y -3.017 -20.104 0.000
z 0.000 0.000 -21.597
Traceless
 xyz
x 1.157 -3.017 0.000
y -3.017 0.541 0.000
z 0.000 0.000 -1.698
Polar
3z2-r2-3.396
x2-y20.410
xy-3.017
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.693 -0.142 0.000
y -0.142 3.687 0.000
z 0.000 0.000 3.453


<r2> (average value of r2) Å2
<r2> 39.307
(<r2>)1/2 6.270