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All results from a given calculation for SiH3OH (silanol)

using model chemistry: PBE1PBE/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-366.984762
Energy at 298.15K 
HF Energy-366.984762
Nuclear repulsion energy64.743146
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/6-311+G(3df,2p)
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' 3964 3964 97.71 75.12 0.21 0.35
2 A' 2260 2260 94.99 125.45 0.19 0.32
3 A' 2214 2214 88.33 217.59 0.06 0.11
4 A' 987 987 172.72 1.84 0.75 0.86
5 A' 965 965 87.58 6.74 0.74 0.85
6 A' 905 905 12.29 7.46 0.39 0.56
7 A' 840 840 185.86 5.91 0.23 0.37
8 A' 679 679 64.80 3.21 0.69 0.82
9 A" 2210 2210 160.79 64.15 0.75 0.86
10 A" 946 946 65.84 7.77 0.75 0.86
11 A" 714 714 62.05 5.91 0.75 0.86
12 A" 187 187 98.87 0.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8436.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8436.5 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/6-311+G(3df,2p)
ABC
2.57143 0.46169 0.45289

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.030 -0.531 0.000
O2 0.030 1.118 0.000
H3 1.454 -0.933 0.000
H4 -0.651 -1.078 1.204
H5 -0.651 -1.078 -1.204
H6 -0.811 1.572 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.64891.47971.48801.48802.2645
O21.64892.49732.59582.59580.9552
H31.47972.49732.42962.42963.3771
H41.48802.59582.42962.40862.9153
H51.48802.59582.42962.40862.9153
H62.26450.95523.37712.91532.9153

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 118.364 O2 Si1 H3 105.793
O2 Si1 H4 111.586 O2 Si1 H5 111.586
H3 Si1 H4 109.902 H3 Si1 H5 109.902
H4 Si1 H5 108.064
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.555      
2 O -0.516      
3 H -0.075      
4 H -0.081      
5 H -0.081      
6 H 0.198      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.298 0.076 0.000 1.301
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.973 -2.930 0.000
y -2.930 -20.506 0.000
z 0.000 0.000 -21.913
Traceless
 xyz
x 1.236 -2.930 0.000
y -2.930 0.437 0.000
z 0.000 0.000 -1.673
Polar
3z2-r2-3.346
x2-y20.533
xy-2.930
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.787 -0.022 0.000
y -0.022 4.855 0.000
z 0.000 0.000 4.754


<r2> (average value of r2) Å2
<r2> 39.143
(<r2>)1/2 6.256