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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-391.145193
Energy at 298.15K 
HF Energy-391.145193
Nuclear repulsion energy62.734879
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 mPW1PW91/6-31G**
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 2276 2166 40.70 189.05 0.04 0.07
2 A1 1036 986 251.55 14.08 0.61 0.76
3 A1 896 853 29.26 6.59 0.46 0.63
4 E 2281 2170 187.26 57.40 0.75 0.86
4 E 2281 2170 187.28 57.40 0.75 0.86
5 E 956 910 98.87 22.42 0.75 0.86
5 E 956 910 98.89 22.43 0.75 0.86
6 E 740 704 59.88 10.55 0.75 0.86
6 E 740 704 59.88 10.55 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6081.4 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 5786.4 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 mPW1PW91/6-31G**
ABC
2.83794 0.46898 0.46898

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.501
F2 0.000 0.000 -1.108
H3 0.000 1.402 0.987
H4 -1.214 -0.701 0.987
H5 1.214 -0.701 0.987

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.60931.48361.48361.4836
F21.60932.52102.52102.5210
H31.48362.52102.42772.4277
H41.48362.52102.42772.4277
H51.48362.52102.42772.4277

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 109.128 F2 Si1 H4 109.128
F2 Si1 H5 109.128 H3 Si1 H4 109.812
H3 Si1 H5 109.812 H4 Si1 H5 109.812
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.734      
2 F -0.397      
3 H -0.113      
4 H -0.113      
5 H -0.113      


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 1.300 1.300
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.400 0.000 0.000
y 0.000 -19.400 0.000
z 0.000 0.000 -20.343
Traceless
 xyz
x 0.471 0.000 0.000
y 0.000 0.471 0.000
z 0.000 0.000 -0.943
Polar
3z2-r2-1.886
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 3.213 0.000 0.000
y 0.000 3.213 0.000
z 0.000 0.000 2.781


<r2> (average value of r2) Å2
<r2> 35.699
(<r2>)1/2 5.975