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

using model chemistry: LSDA/cc-pVTZ

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 LSDA/cc-pVTZ
 hartrees
Energy at 0K-487.599089
Energy at 298.15K-487.479380
HF Energy-487.599089
Nuclear repulsion energy100.213172
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 LSDA/cc-pVTZ
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 843 834 110.97      
2 A1 323 320 14.22      
3 B2 861 851 145.25      

Unscaled Zero Point Vibrational Energy (zpe) 1013.7 cm-1
Scaled (by 0.9891) Zero Point Vibrational Energy (zpe) 1002.7 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 LSDA/cc-pVTZ
ABC
0.97707 0.29171 0.22464

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.582
F2 0.000 1.233 -0.453
F3 0.000 -1.233 -0.453

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.60991.6099
F21.60992.4665
F31.60992.4665

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 100.002
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.423      
2 F -0.212      
3 F -0.212      


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 1.068 1.068
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.031 0.000 0.000
y 0.000 -24.415 0.000
z 0.000 0.000 -23.074
Traceless
 xyz
x 3.713 0.000 0.000
y 0.000 -2.862 0.000
z 0.000 0.000 -0.851
Polar
3z2-r2-1.701
x2-y24.383
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.911 0.000 0.000
y 0.000 4.098 0.000
z 0.000 0.000 3.681


<r2> (average value of r2) Å2
<r2> 49.866
(<r2>)1/2 7.062

State 2 (3B1)

Jump to S1C1
Energy calculated at LSDA/cc-pVTZ
 hartrees
Energy at 0K-487.477604
Energy at 298.15K-487.357807
HF Energy-487.477604
Nuclear repulsion energy98.883551
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 LSDA/cc-pVTZ
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 807 799 54.33      
2 A1 249 246 10.72      
3 B2 927 916 126.64      

Unscaled Zero Point Vibrational Energy (zpe) 991.1 cm-1
Scaled (by 0.9891) Zero Point Vibrational Energy (zpe) 980.3 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 LSDA/cc-pVTZ
ABC
1.35612 0.24482 0.20738

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

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.389      
2 F -0.194      
3 F -0.194      


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 1.182 1.182
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.290 0.000 0.000
y 0.000 -24.366 0.000
z 0.000 0.000 -20.985
Traceless
 xyz
x -0.615 0.000 0.000
y 0.000 -2.228 0.000
z 0.000 0.000 2.843
Polar
3z2-r25.686
x2-y21.076
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.872 0.000 0.000
y 0.000 3.988 0.000
z 0.000 0.000 3.571


<r2> (average value of r2) Å2
<r2> 52.985
(<r2>)1/2 7.279