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All results from a given calculation for SiH3OH (silanol)

using model chemistry: B3PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/TZVP
 hartrees
Energy at 0K-367.122253
Energy at 298.15K 
HF Energy-367.122253
Nuclear repulsion energy64.104387
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 B3PW91/TZVP
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' 3911 3771 79.86 82.21 0.26 0.42
2 A' 2255 2175 104.51 124.58 0.26 0.41
3 A' 2202 2124 94.48 211.62 0.08 0.14
4 A' 983 948 198.10 15.54 0.73 0.84
5 A' 960 926 103.96 15.97 0.75 0.86
6 A' 886 855 17.86 11.74 0.71 0.83
7 A' 833 803 187.13 9.04 0.30 0.46
8 A' 669 645 71.73 8.06 0.73 0.84
9 A" 2199 2120 180.50 79.71 0.75 0.86
10 A" 940 907 75.73 21.93 0.75 0.86
11 A" 708 682 75.34 16.69 0.75 0.86
12 A" 200 192 121.09 2.16 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8372.7 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 8073.8 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 B3PW91/TZVP
ABC
2.54611 0.45100 0.44228

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.031 -0.538 0.000
O2 0.031 1.134 0.000
H3 1.459 -0.943 0.000
H4 -0.657 -1.087 1.208
H5 -0.657 -1.087 -1.208
H6 -0.820 1.576 0.000

Atom - Atom Distances (Å)
  Si1 O2 H3 H4 H5 H6
Si11.67191.48451.49421.49422.2785
O21.67192.52032.61972.61970.9589
H31.48452.52032.44042.44043.3966
H41.49422.61972.44042.41612.9282
H51.49422.61972.44042.41612.9282
H62.27850.95893.39662.92822.9282

picture of silanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 O2 H6 117.428 O2 Si1 H3 105.819
O2 Si1 H4 111.544 O2 Si1 H5 111.544
H3 Si1 H4 110.023 H3 Si1 H5 110.023
H4 Si1 H5 107.895
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.524      
2 O -0.525      
3 H -0.083      
4 H -0.104      
5 H -0.104      
6 H 0.292      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.450 -0.150 0.000 1.458
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.890 -3.185 0.000
y -3.185 -20.579 0.000
z 0.000 0.000 -21.849
Traceless
 xyz
x 1.324 -3.185 0.000
y -3.185 0.290 0.000
z 0.000 0.000 -1.614
Polar
3z2-r2-3.228
x2-y20.689
xy-3.185
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.341 -0.032 0.000
y -0.032 4.127 0.000
z 0.000 0.000 4.169


<r2> (average value of r2) Å2
<r2> 39.648
(<r2>)1/2 6.297