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All results from a given calculation for SiH3OH (silanol)

using model chemistry: B3LYP/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-367.236148
Energy at 298.15K 
HF Energy-367.236148
Nuclear repulsion energy64.642250
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/cc-pVQZ
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' 3890 3769 87.92 82.42 0.22 0.36
2 A' 2265 2194 99.40 136.40 0.17 0.29
3 A' 2219 2149 99.75 208.17 0.07 0.13
4 A' 1003 971 185.33 2.63 0.74 0.85
5 A' 977 947 95.68 7.20 0.75 0.86
6 A' 904 876 17.96 6.73 0.44 0.61
7 A' 836 810 181.69 5.90 0.24 0.39
8 A' 688 667 66.38 3.19 0.67 0.80
9 A" 2211 2142 175.58 63.97 0.75 0.86
10 A" 959 929 75.35 8.36 0.75 0.86
11 A" 724 701 63.89 6.50 0.75 0.86
12 A" 198 191 99.68 0.97 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8436.1 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 8172.9 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/cc-pVQZ
ABC
2.58794 0.45908 0.45044

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.030 -0.533 0.000
O2 0.030 1.121 0.000
H3 1.450 -0.933 0.000
H4 -0.649 -1.079 1.200
H5 -0.649 -1.079 -1.200
H6 -0.808 1.585 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.65441.47501.48331.48332.2775
O21.65442.49702.59702.59700.9575
H31.47502.49702.42202.42203.3815
H41.48332.59702.42202.40092.9263
H51.48332.59702.42202.40092.9263
H62.27750.95753.38152.92632.9263

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 118.939 O2 Si1 H3 105.723
O2 Si1 H4 111.611 O2 Si1 H5 111.611
H3 Si1 H4 109.913 H3 Si1 H5 109.913
H4 Si1 H5 108.063
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.511      
2 O -0.522      
3 H -0.056      
4 H -0.079      
5 H -0.079      
6 H 0.226      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.284 0.080 0.000 1.286
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.177 -2.908 0.000
y -2.908 -20.555 0.000
z 0.000 0.000 -22.009
Traceless
 xyz
x 1.105 -2.908 0.000
y -2.908 0.538 0.000
z 0.000 0.000 -1.643
Polar
3z2-r2-3.286
x2-y20.378
xy-2.908
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.770 -0.052 0.000
y -0.052 4.780 0.000
z 0.000 0.000 4.680


<r2> (average value of r2) Å2
<r2> 39.309
(<r2>)1/2 6.270