return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for SiH3OH (silanol)

using model chemistry: TPSSh/aug-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 TPSSh/aug-cc-pVQZ
 hartrees
Energy at 0K-367.230292
Energy at 298.15K 
HF Energy-367.230292
Nuclear repulsion energy64.569104
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 TPSSh/aug-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' 3858 3858 78.34 87.96 0.19 0.32
2 A' 2279 2279 95.18 136.64 0.15 0.26
3 A' 2233 2233 95.08 226.56 0.05 0.10
4 A' 998 998 180.02 1.59 0.75 0.86
5 A' 978 978 92.96 4.66 0.73 0.84
6 A' 906 906 22.72 6.81 0.31 0.47
7 A' 834 834 166.89 6.53 0.21 0.35
8 A' 681 681 65.39 2.43 0.61 0.76
9 A" 2226 2226 165.42 60.42 0.75 0.86
10 A" 960 960 69.49 5.58 0.75 0.86
11 A" 716 716 59.86 4.47 0.75 0.86
12 A" 201 201 94.07 0.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8434.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8434.6 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 TPSSh/aug-cc-pVQZ
ABC
2.57807 0.45831 0.44948

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.030 -0.534 0.000
O2 0.030 1.123 0.000
H3 1.452 -0.926 0.000
H4 -0.648 -1.080 1.201
H5 -0.648 -1.080 -1.201
H6 -0.817 1.575 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.65731.47531.48361.48362.2728
O21.65732.49472.59982.59980.9603
H31.47532.49472.42442.42443.3775
H41.48362.59982.42442.40222.9192
H51.48362.59982.42442.40222.9192
H62.27280.96033.37752.91922.9192

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 118.048 O2 Si1 H3 105.422
O2 Si1 H4 111.612 O2 Si1 H5 111.612
H3 Si1 H4 110.038 H3 Si1 H5 110.038
H4 Si1 H5 108.112
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.662      
2 O -0.597      
3 H -0.105      
4 H -0.119      
5 H -0.119      
6 H 0.279      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.268 0.050 0.000 1.269
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.943 -0.035 0.000
y -0.035 5.089 0.000
z 0.000 0.000 4.886


<r2> (average value of r2) Å2
<r2> 39.265
(<r2>)1/2 6.266