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All results from a given calculation for SiF2 (Silicon difluoride)

using model chemistry: HF/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
2 1 yes C2V 3B1

State 1 (1A1)

Jump to S2C1
Energy calculated at HF/6-31G
 hartrees
Energy at 0K-487.791778
Energy at 298.15K 
HF Energy-487.791778
Nuclear repulsion energy96.680218
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/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 851 768 138.33 5.78 0.44 0.61
2 A1 337 304 31.66 0.80 0.49 0.66
3 B2 854 771 138.96 5.46 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1020.5 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 921.4 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 HF/6-31G
ABC
0.83980 0.28356 0.21199

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.628
F2 0.000 1.251 -0.488
F3 0.000 -1.251 -0.488

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.67641.6764
F21.67642.5017
F31.67642.5017

picture of Silicon difluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 F3 96.514
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.217      
2 F -0.608      
3 F -0.608      


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 2.865 2.865
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.622 0.000 0.000
y 0.000 -28.061 0.000
z 0.000 0.000 -24.132
Traceless
 xyz
x 7.475 0.000 0.000
y 0.000 -6.685 0.000
z 0.000 0.000 -0.790
Polar
3z2-r2-1.580
x2-y29.440
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.147 0.000 0.000
y 0.000 3.519 0.000
z 0.000 0.000 2.580


<r2> (average value of r2) Å2
<r2> 52.716
(<r2>)1/2 7.261

State 2 (3B1)

Jump to S1C1
Energy calculated at HF/6-31G
 hartrees
Energy at 0K-487.698925
Energy at 298.15K-487.579124
HF Energy-487.698925
Nuclear repulsion energy94.486323
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/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 792 715 56.66      
2 A1 254 230 43.50      
3 B2 925 835 103.59      

Unscaled Zero Point Vibrational Energy (zpe) 985.4 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 889.7 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/6-31G
ABC
1.29272 0.22042 0.18831

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

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.135      
2 F -0.568      
3 F -0.568      


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 3.362 3.362
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.863 0.000 0.000
y 0.000 -29.346 0.000
z 0.000 0.000 -19.945
Traceless
 xyz
x 2.782 0.000 0.000
y 0.000 -8.442 0.000
z 0.000 0.000 5.660
Polar
3z2-r211.319
x2-y27.483
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.942 0.000 0.000
y 0.000 2.877 0.000
z 0.000 0.000 1.876


<r2> (average value of r2) Å2
<r2> 57.418
(<r2>)1/2 7.577