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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: PBEPBEultrafine/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBEultrafine/6-31G**
 hartrees
Energy at 0K-390.900276
Energy at 298.15K 
HF Energy-390.900276
Nuclear repulsion energy62.124818
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 PBEPBEultrafine/6-31G**
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 2188 2158 39.26 193.02 0.04 0.07
2 A1 1003 989 213.93 14.53 0.59 0.74
3 A1 861 849 23.81 7.81 0.44 0.61
4 E 2197 2167 172.78 60.23 0.75 0.86
4 E 2197 2167 172.82 60.22 0.75 0.86
5 E 912 900 81.48 22.74 0.75 0.86
5 E 912 900 81.49 22.74 0.75 0.86
6 E 714 705 50.75 10.80 0.75 0.86
6 E 714 705 50.75 10.80 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5849.5 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 5769.4 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 PBEPBEultrafine/6-31G**
ABC
2.79231 0.45962 0.45962

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.505
F2 0.000 0.000 -1.120
H3 0.000 1.413 1.002
H4 -1.224 -0.707 1.002
H5 1.224 -0.707 1.002

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.62491.49791.49791.4979
F21.62492.54932.54932.5493
H31.49792.54932.44752.4475
H41.49792.54932.44752.4475
H51.49792.54932.44752.4475

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 109.376 F2 Si1 H4 109.376
F2 Si1 H5 109.376 H3 Si1 H4 109.567
H3 Si1 H5 109.567 H4 Si1 H5 109.567
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.599      
2 F -0.346      
3 H -0.084      
4 H -0.084      
5 H -0.084      


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 1.176 1.176
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.552 0.000 0.000
y 0.000 -19.552 0.000
z 0.000 0.000 -20.315
Traceless
 xyz
x 0.382 0.000 0.000
y 0.000 0.382 0.000
z 0.000 0.000 -0.763
Polar
3z2-r2-1.526
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 3.366 0.000 0.000
y 0.000 3.366 0.000
z 0.000 0.000 2.997


<r2> (average value of r2) Å2
<r2> 36.231
(<r2>)1/2 6.019