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All results from a given calculation for SiH3OH (silanol)

using model chemistry: PBE1PBE/daug-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 PBE1PBE/daug-cc-pVTZ
 hartrees
Energy at 0K-366.987740
Energy at 298.15K 
HF Energy-366.987740
Nuclear repulsion energy64.507581
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 PBE1PBE/daug-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' 3935 3935 92.90 81.40 0.18 0.31
2 A' 2258 2258 96.49 128.51 0.18 0.31
3 A' 2211 2211 85.81 251.24 0.05 0.09
4 A' 980 980 164.84 1.56 0.75 0.86
5 A' 961 961 90.22 4.72 0.71 0.83
6 A' 906 906 19.17 7.31 0.34 0.51
7 A' 846 846 179.73 5.84 0.23 0.37
8 A' 678 678 61.49 2.74 0.63 0.77
9 A" 2209 2209 159.73 62.58 0.75 0.86
10 A" 942 942 65.91 5.90 0.75 0.86
11 A" 712 712 61.72 4.68 0.75 0.86
12 A" 188 188 95.85 0.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8412.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8412.3 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 PBE1PBE/daug-cc-pVTZ
ABC
2.55755 0.45792 0.44914

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.030 -0.533 0.000
O2 0.030 1.124 0.000
H3 1.457 -0.937 0.000
H4 -0.653 -1.081 1.207
H5 -0.653 -1.081 -1.207
H6 -0.817 1.569 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.65711.48261.49101.49102.2661
O21.65712.50642.60482.60480.9565
H31.48262.50642.43472.43473.3832
H41.49102.60482.43472.41372.9162
H51.49102.60482.43472.41372.9162
H62.26610.95653.38322.91622.9162

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 117.712 O2 Si1 H3 105.797
O2 Si1 H4 111.556 O2 Si1 H5 111.556
H3 Si1 H4 109.923 H3 Si1 H5 109.923
H4 Si1 H5 108.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.920      
2 O -0.204      
3 H -0.237      
4 H -0.243      
5 H -0.243      
6 H 0.007      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.277 0.011 0.000 1.277
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.027 -2.904 0.000
y -2.904 -20.645 0.000
z 0.000 0.000 -21.922
Traceless
 xyz
x 1.257 -2.904 0.000
y -2.904 0.329 0.000
z 0.000 0.000 -1.586
Polar
3z2-r2-3.172
x2-y20.618
xy-2.904
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.005 -0.031 0.000
y -0.031 5.078 0.000
z 0.000 0.000 4.951


<r2> (average value of r2) Å2
<r2> 39.368
(<r2>)1/2 6.274