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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-391.142387
Energy at 298.15K 
HF Energy-391.142387
Nuclear repulsion energy62.730718
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 2290 2172 43.21 185.35 0.04 0.07
2 A1 1037 983 261.21 15.11 0.62 0.76
3 A1 897 850 28.04 6.80 0.47 0.64
4 E 2297 2178 200.05 58.04 0.75 0.86
4 E 2297 2178 200.07 58.04 0.75 0.86
5 E 956 906 102.21 23.35 0.75 0.86
5 E 956 906 102.22 23.36 0.75 0.86
6 E 740 702 60.74 10.82 0.75 0.86
6 E 740 702 60.74 10.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6104.6 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 5788.9 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 mPW1PW91/6-31G*
ABC
2.83802 0.46892 0.46892

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 0.988
H4 -1.214 -0.701 0.988
H5 1.214 -0.701 0.988

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.60921.48401.48401.4840
F21.60922.52202.52202.5220
H31.48402.52202.42772.4277
H41.48402.52202.42772.4277
H51.48402.52202.42772.4277

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 109.174 F2 Si1 H4 109.174
F2 Si1 H5 109.174 H3 Si1 H4 109.767
H3 Si1 H5 109.767 H4 Si1 H5 109.767
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 0.669      
2 F -0.398      
3 H -0.090      
4 H -0.090      
5 H -0.090      


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 1.286 1.286
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.436 0.000 0.000
y 0.000 -19.436 0.000
z 0.000 0.000 -20.365
Traceless
 xyz
x 0.465 0.000 0.000
y 0.000 0.465 0.000
z 0.000 0.000 -0.929
Polar
3z2-r2-1.859
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 3.165 0.000 0.000
y 0.000 3.166 0.000
z 0.000 0.000 2.724


<r2> (average value of r2) Å2
<r2> 35.724
(<r2>)1/2 5.977