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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-388.193338
Energy at 298.15K 
HF Energy-388.193338
Nuclear repulsion energy63.378482
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 HF/3-21G*
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 2448 2210 45.47 160.91 0.04 0.08
2 A1 1160 1047 377.42 14.90 0.62 0.77
3 A1 996 899 18.14 4.61 0.55 0.71
4 E 2436 2199 219.69 45.53 0.75 0.86
4 E 2436 2199 219.69 45.53 0.75 0.86
5 E 1037 936 166.71 23.50 0.75 0.86
5 E 1037 936 166.71 23.50 0.75 0.86
6 E 824 743 102.31 9.50 0.75 0.86
6 E 824 743 102.31 9.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6598.3 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 5955.6 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 HF/3-21G*
ABC
2.89235 0.47879 0.47879

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.496
F2 0.000 0.000 -1.097
H3 0.000 1.388 0.975
H4 -1.202 -0.694 0.975
H5 1.202 -0.694 0.975

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.59291.46881.46881.4688
F21.59292.49432.49432.4943
H31.46882.49432.40482.4048
H41.46882.49432.40482.4048
H51.46882.49432.40482.4048

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 109.045 F2 Si1 H4 109.045
F2 Si1 H5 109.045 H3 Si1 H4 109.894
H3 Si1 H5 109.894 H4 Si1 H5 109.894
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.926      
2 F -0.426      
3 H -0.166      
4 H -0.166      
5 H -0.166      


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 1.385 1.385
CHELPG 0.000 -0.001 1.396 1.396
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.771 0.000 0.000
y 0.000 -19.771 0.000
z 0.000 0.000 -21.161
Traceless
 xyz
x 0.695 0.000 0.000
y 0.000 0.695 0.000
z 0.000 0.000 -1.389
Polar
3z2-r2-2.779
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 2.646 0.000 0.000
y 0.000 2.646 0.000
z 0.000 0.000 2.186


<r2> (average value of r2) Å2
<r2> 35.548
(<r2>)1/2 5.962