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

using model chemistry: B3PW91/cc-pVDZ

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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-489.149683
Energy at 298.15K 
HF Energy-489.149683
Nuclear repulsion energy97.520823
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 B3PW91/cc-pVDZ
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 835 806 108.53      
2 A1 316 305 16.45      
3 B2 855 825 129.77      

Unscaled Zero Point Vibrational Energy (zpe) 1002.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 967.8 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 B3PW91/cc-pVDZ
ABC
0.92406 0.27644 0.21278

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.599
F2 0.000 1.267 -0.466
F3 0.000 -1.267 -0.466

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.65441.6544
F21.65442.5337
F31.65442.5337

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 99.946
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.639      
2 F -0.319      
3 F -0.319      


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 1.426 1.426
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.483 0.000 0.000
y 0.000 -24.847 0.000
z 0.000 0.000 -22.828
Traceless
 xyz
x 4.355 0.000 0.000
y 0.000 -3.691 0.000
z 0.000 0.000 -0.664
Polar
3z2-r2-1.327
x2-y25.364
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.404 0.000 0.000
y 0.000 3.723 0.000
z 0.000 0.000 3.133


<r2> (average value of r2) Å2
<r2> 51.787
(<r2>)1/2 7.196

State 2 (3B1)

Jump to S1C1
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-489.038150
Energy at 298.15K-488.918332
HF Energy-489.038150
Nuclear repulsion energy95.970734
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 B3PW91/cc-pVDZ
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 786 759 46.13      
2 A1 242 234 16.10      
3 B2 914 882 107.11      

Unscaled Zero Point Vibrational Energy (zpe) 971.0 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 937.0 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 B3PW91/cc-pVDZ
ABC
1.33326 0.22742 0.19428

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.589      
2 F -0.295      
3 F -0.295      


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 1.665 1.665
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.581 0.000 0.000
y 0.000 -25.073 0.000
z 0.000 0.000 -20.260
Traceless
 xyz
x 0.085 0.000 0.000
y 0.000 -3.652 0.000
z 0.000 0.000 3.567
Polar
3z2-r27.134
x2-y22.491
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.730 0.000 0.000
y 0.000 3.439 0.000
z 0.000 0.000 2.814


<r2> (average value of r2) Å2
<r2> 55.434
(<r2>)1/2 7.445