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All results from a given calculation for SiH3OH (silanol)

using model chemistry: BLYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-367.174805
Energy at 298.15K 
HF Energy-367.174805
Nuclear repulsion energy63.804839
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 BLYP/aug-cc-pVTZ
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' 3740 3727 66.27 96.25 0.19 0.32
2 A' 2205 2198 100.69 132.47 0.20 0.34
3 A' 2153 2145 90.37 262.85 0.05 0.09
4 A' 965 962 164.12 2.31 0.75 0.85
5 A' 945 942 90.86 4.86 0.72 0.84
6 A' 890 887 40.33 6.06 0.40 0.57
7 A' 799 796 142.55 9.92 0.19 0.32
8 A' 668 666 57.68 3.05 0.60 0.75
9 A" 2152 2144 166.67 71.56 0.75 0.86
10 A" 928 925 65.52 6.47 0.75 0.86
11 A" 692 690 52.90 5.21 0.75 0.86
12 A" 194 193 90.91 0.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8164.8 cm-1
Scaled (by 0.9966) Zero Point Vibrational Energy (zpe) 8137.1 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 BLYP/aug-cc-pVTZ
ABC
2.53741 0.44625 0.43769

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.030 -0.542 0.000
O2 0.030 1.140 0.000
H3 1.464 -0.932 0.000
H4 -0.651 -1.094 1.210
H5 -0.651 -1.094 -1.210
H6 -0.829 1.586 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.68191.48551.49441.49442.2954
O21.68192.51922.63042.63040.9686
H31.48552.51922.44162.44163.4057
H41.49442.63042.44162.42062.9464
H51.49442.63042.44162.42062.9464
H62.29540.96863.40572.94642.9464

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 117.445 O2 Si1 H3 105.210
O2 Si1 H4 111.681 O2 Si1 H5 111.681
H3 Si1 H4 110.044 H3 Si1 H5 110.044
H4 Si1 H5 108.170
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.985      
2 O -0.471      
3 H -0.192      
4 H -0.204      
5 H -0.204      
6 H 0.085      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.254 -0.059 0.000 1.256
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.426 -2.897 0.000
y -2.897 -21.068 0.000
z 0.000 0.000 -22.328
Traceless
 xyz
x 1.272 -2.897 0.000
y -2.897 0.309 0.000
z 0.000 0.000 -1.581
Polar
3z2-r2-3.161
x2-y20.642
xy-2.897
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.253 -0.026 0.000
y -0.026 5.443 0.000
z 0.000 0.000 5.201


<r2> (average value of r2) Å2
<r2> 40.201
(<r2>)1/2 6.340