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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: PBEPBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/6-311G**
 hartrees
Energy at 0K-390.958008
Energy at 298.15K 
HF Energy-390.958008
Nuclear repulsion energy61.967561
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 PBEPBE/6-311G**
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 2185 2165 30.73 255.07 0.04 0.08
2 A1 985 976 216.53 17.32 0.66 0.80
3 A1 831 823 44.45 6.78 0.49 0.66
4 E 2195 2175 140.02 75.47 0.75 0.86
4 E 2195 2175 140.06 75.46 0.75 0.86
5 E 911 903 85.54 26.97 0.75 0.86
5 E 911 903 85.55 26.98 0.75 0.86
6 E 704 698 55.81 17.29 0.75 0.86
6 E 704 698 55.81 17.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5810.8 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 5757.9 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 PBEPBE/6-311G**
ABC
2.78766 0.45678 0.45678

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.509
F2 0.000 0.000 -1.123
H3 0.000 1.414 0.993
H4 -1.225 -0.707 0.993
H5 1.225 -0.707 0.993

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.63271.49481.49481.4948
F21.63272.54572.54572.5457
H31.49482.54572.44952.4495
H41.49482.54572.44952.4495
H51.49482.54572.44952.4495

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 108.895 F2 Si1 H4 108.895
F2 Si1 H5 108.895 H3 Si1 H4 110.041
H3 Si1 H5 110.041 H4 Si1 H5 110.042
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.747      
2 F -0.392      
3 H -0.118      
4 H -0.118      
5 H -0.118      


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 1.455 1.455
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.856 0.000 0.000
y 0.000 -19.856 0.000
z 0.000 0.000 -20.967
Traceless
 xyz
x 0.556 0.000 0.000
y 0.000 0.556 0.000
z 0.000 0.000 -1.111
Polar
3z2-r2-2.222
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 3.803 0.000 0.000
y 0.000 3.803 -0.000
z 0.000 -0.000 3.159


<r2> (average value of r2) Å2
<r2> 36.583
(<r2>)1/2 6.048