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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at G4
 hartrees
Energy at 0K-391.025059
Energy at 298.15K-391.020885
HF Energy-391.197642
Nuclear repulsion energy63.058208
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/6-31G(2df,p)
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 2241 2163 32.08 180.97 0.04 0.08
2 A1 1012 976 204.66 4.08 0.62 0.77
3 A1 887 856 32.47 5.23 0.33 0.50
4 E 2245 2167 143.82 48.16 0.75 0.86
4 E 2245 2167 143.83 48.16 0.75 0.86
5 E 963 929 83.88 12.07 0.75 0.86
5 E 963 929 83.88 12.07 0.75 0.86
6 E 730 704 53.01 7.55 0.75 0.86
6 E 730 704 53.00 7.54 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6007.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 5797.7 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/6-31G(2df,p)
ABC
2.83287 0.47507 0.47507

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.499
F2 0.000 0.000 -1.100
H3 0.000 1.403 0.974
H4 -1.215 -0.701 0.974
H5 1.215 -0.701 0.974

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.59911.48121.48121.4812
F21.59912.50422.50422.5042
H31.48122.50422.42992.4299
H41.48122.50422.42992.4299
H51.48122.50422.42992.4299

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 108.727 F2 Si1 H4 108.727
F2 Si1 H5 108.727 H3 Si1 H4 110.206
H3 Si1 H5 110.206 H4 Si1 H5 110.206
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.214      
2 F -0.216      
3 H 0.001      
4 H 0.001      
5 H 0.001      


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 1.112 1.112
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 35.479
(<r2>)1/2 5.956