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All results from a given calculation for SiH3OH (silanol)

using model chemistry: HF/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 HF/cc-pVTZ
 hartrees
Energy at 0K-366.207177
Energy at 298.15K 
HF Energy-366.207177
Nuclear repulsion energy65.238122
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 HF/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' 4210 3832 127.92 64.31 0.25 0.39
2 A' 2349 2138 110.14 161.40 0.11 0.19
3 A' 2311 2103 142.40 156.91 0.12 0.21
4 A' 1076 980 227.53 4.16 0.74 0.85
5 A' 1053 958 130.10 8.00 0.75 0.86
6 A' 954 868 11.84 6.06 0.51 0.67
7 A' 903 821 241.52 3.98 0.36 0.53
8 A' 733 667 82.02 3.46 0.74 0.85
9 A" 2295 2089 226.55 59.05 0.75 0.86
10 A" 1033 940 106.10 9.56 0.75 0.86
11 A" 781 711 93.21 6.69 0.75 0.86
12 A" 200 182 114.28 1.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8948.5 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 8144.1 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 HF/cc-pVTZ
ABC
2.61564 0.46795 0.45949

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.030 -0.527 0.000
O2 0.030 1.109 0.000
H3 1.441 -0.948 0.000
H4 -0.655 -1.064 1.198
H5 -0.655 -1.064 -1.198
H6 -0.780 1.583 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.63531.47271.48031.48032.2600
O21.63532.49442.57362.57360.9385
H31.47272.49442.41632.41633.3675
H41.48032.57362.41632.39512.9084
H51.48032.57362.41632.39512.9084
H62.26000.93853.36752.90842.9084

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 120.384 O2 Si1 H3 106.634
O2 Si1 H4 111.288 O2 Si1 H5 111.288
H3 Si1 H4 109.818 H3 Si1 H5 109.818
H4 Si1 H5 107.994
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.452      
2 O -0.438      
3 H -0.057      
4 H -0.086      
5 H -0.086      
6 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.329 0.135 0.000 1.336
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.188 -2.951 0.000
y -2.951 -20.435 0.000
z 0.000 0.000 -21.970
Traceless
 xyz
x 1.015 -2.951 0.000
y -2.951 0.643 0.000
z 0.000 0.000 -1.658
Polar
3z2-r2-3.316
x2-y20.248
xy-2.951
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.230 -0.087 0.000
y -0.087 4.014 0.000
z 0.000 0.000 4.103


<r2> (average value of r2) Å2
<r2> 38.848
(<r2>)1/2 6.233