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All results from a given calculation for SiH3F (monofluorosilane)

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-385.391368
Energy at 298.15K 
HF Energy-385.391368
Nuclear repulsion energy63.116520
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/STO-3G
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 2864 2338 10.38 62.19 0.05 0.10
2 A1 1233 1006 284.92 8.21 0.68 0.81
3 A1 959 783 1.94 4.74 0.37 0.55
4 E 2911 2377 27.95 34.82 0.75 0.86
4 E 2911 2377 27.95 34.82 0.75 0.86
5 E 1226 1001 103.17 22.38 0.75 0.86
5 E 1226 1001 103.17 22.38 0.75 0.86
6 E 854 697 102.26 6.51 0.75 0.86
6 E 854 697 102.26 6.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7518.5 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 6138.8 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/STO-3G
ABC
3.09175 0.46625 0.46625

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.508
F2 0.000 0.000 -1.116
H3 0.000 1.343 0.978
H4 -1.163 -0.671 0.978
H5 1.163 -0.671 0.978

Atom - Atom Distances (Å)
  Si1 F2 H3 H4 H5
Si11.62351.42291.42291.4229
F21.62352.48752.48752.4875
H31.42292.48752.32602.3260
H41.42292.48752.32602.3260
H51.42292.48752.32602.3260

picture of monofluorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 H3 109.305 F2 Si1 H4 109.305
F2 Si1 H5 109.305 H3 Si1 H4 109.637
H3 Si1 H5 109.637 H4 Si1 H5 109.637
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.828      
2 F -0.325      
3 H -0.168      
4 H -0.168      
5 H -0.168      


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 1.020 1.020
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.593 0.000 0.000
y 0.000 -17.593 0.000
z 0.000 0.000 -19.093
Traceless
 xyz
x 0.750 0.000 0.000
y 0.000 0.750 0.000
z 0.000 0.000 -1.501
Polar
3z2-r2-3.001
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 1.355 0.000 0.000
y 0.000 1.355 0.000
z 0.000 0.000 1.473


<r2> (average value of r2) Å2
<r2> 34.394
(<r2>)1/2 5.865