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

using model chemistry: M06-2X/6-311G*

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 M06-2X/6-311G*
 hartrees
Energy at 0K-489.240845
Energy at 298.15K 
HF Energy-489.240845
Nuclear repulsion energy100.103999
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 M06-2X/6-311G*
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 874 874 147.71 3.32 0.69 0.82
2 A1 347 347 23.34 0.79 0.41 0.58
3 B2 881 881 175.69 4.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1051.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1051.1 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 M06-2X/6-311G*
ABC
0.95963 0.29350 0.22476

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.587
F2 0.000 1.229 -0.457
F3 0.000 -1.229 -0.457

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.61301.6130
F21.61302.4590
F31.61302.4590

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 99.321
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.861      
2 F -0.431      
3 F -0.431      


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 1.550 1.550
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.191 0.000 0.000
y 0.000 -25.410 0.000
z 0.000 0.000 -23.233
Traceless
 xyz
x 5.130 0.000 0.000
y 0.000 -4.198 0.000
z 0.000 0.000 -0.933
Polar
3z2-r2-1.865
x2-y26.219
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.339 0.000 0.000
y 0.000 3.650 0.000
z 0.000 0.000 2.918


<r2> (average value of r2) Å2
<r2> 49.918
(<r2>)1/2 7.065

State 2 (3B1)

Jump to S1C1
Energy calculated at M06-2X/6-311G*
 hartrees
Energy at 0K-489.126338
Energy at 298.15K-489.006557
HF Energy-489.126338
Nuclear repulsion energy98.379139
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 M06-2X/6-311G*
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 828 828 71.44      
2 A1 256 256 21.13      
3 B2 946 946 147.76      

Unscaled Zero Point Vibrational Energy (zpe) 1015.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1015.2 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 M06-2X/6-311G*
ABC
1.37031 0.24068 0.20473

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311G*

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.795      
2 F -0.397      
3 F -0.397      


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 2.008 2.008
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.554 0.000 0.000
y 0.000 -25.833 0.000
z 0.000 0.000 -20.270
Traceless
 xyz
x 0.498 0.000 0.000
y 0.000 -4.421 0.000
z 0.000 0.000 3.923
Polar
3z2-r27.846
x2-y23.279
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.450 0.000 0.000
y 0.000 3.055 0.000
z 0.000 0.000 2.244


<r2> (average value of r2) Å2
<r2> 53.486
(<r2>)1/2 7.313