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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-389.009467
Energy at 298.15K 
HF Energy-389.009467
Nuclear repulsion energy61.210436
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 B3PW91/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2222 2136 50.77      
2 A1 1055 1014 220.87      
3 A1 871 838 13.32      
4 E 2226 2140 179.98      
5 E 2226 2140 180.01      
6 E 890 856 81.30      
7 E 890 856 81.31      
8 E 754 725 83.36      
9 E 754 725 83.35      

Unscaled Zero Point Vibrational Energy (zpe) 5944.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 5714.1 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 B3PW91/3-21G
ABC
2.81797 0.44225 0.44225

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.516
F2 0.000 0.000 -1.144
H3 0.000 1.407 1.024
H4 -1.218 -0.703 1.024
H5 1.218 -0.703 1.024

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.66001.49541.49541.4954
F21.66002.58392.58392.5839
H31.49542.58392.43632.4363
H41.49542.58392.43632.4363
H51.49542.58392.43632.4363

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 109.839 F2 Si1 H4 109.838
F2 Si1 H5 109.838 H3 Si1 H4 109.101
H3 Si1 H5 109.101 H4 Si1 H5 109.101
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.843      
2 F -0.386      
3 H -0.152      
4 H -0.152      
5 H -0.152      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.065 0.000 0.000
y 0.000 -20.065 0.000
z 0.000 0.000 -21.518
Traceless
 xyz
x 0.727 0.000 0.000
y 0.000 0.727 0.000
z 0.000 0.000 -1.453
Polar
3z2-r2-2.906
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.992 0.000 0.000
y 0.000 2.992 0.000
z 0.000 0.000 2.737


<r2> (average value of r2) Å2
<r2> 37.419
(<r2>)1/2 6.117