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

using model chemistry: M06-2X/aug-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 M06-2X/aug-cc-pVDZ
 hartrees
Energy at 0K-489.206849
Energy at 298.15K 
HF Energy-489.206849
Nuclear repulsion energy98.402818
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/aug-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 836 836 146.70 4.17 0.53 0.69
2 A1 321 321 17.38 0.71 0.18 0.31
3 B2 836 836 183.76 5.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 996.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 996.4 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 M06-2X/aug-cc-pVDZ
ABC
0.90541 0.28727 0.21808

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.605
F2 0.000 1.243 -0.470
F3 0.000 -1.243 -0.470

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.64311.6431
F21.64312.4855
F31.64312.4855

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 98.281
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.053      
2 F -0.527      
3 F -0.527      


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 1.647 1.647
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.881 0.000 0.000
y 0.000 -25.352 0.000
z 0.000 0.000 -23.425
Traceless
 xyz
x 4.507 0.000 0.000
y 0.000 -3.699 0.000
z 0.000 0.000 -0.808
Polar
3z2-r2-1.617
x2-y25.471
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.032 0.000 0.000
y 0.000 4.263 0.000
z 0.000 0.000 3.942


<r2> (average value of r2) Å2
<r2> 51.193
(<r2>)1/2 7.155

State 2 (3B1)

Jump to S1C1
Energy calculated at M06-2X/aug-cc-pVDZ
 hartrees
Energy at 0K-489.091678
Energy at 298.15K-488.971883
HF Energy-489.091678
Nuclear repulsion energy96.907567
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/aug-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 804 804 83.09      
2 A1 253 253 14.92      
3 B2 912 912 149.94      

Unscaled Zero Point Vibrational Energy (zpe) 984.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 984.4 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 M06-2X/aug-cc-pVDZ
ABC
1.29188 0.23578 0.19939

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVDZ

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.039      
2 F -0.520      
3 F -0.520      


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 1.585 1.585
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.313 0.000 0.000
y 0.000 -25.467 0.000
z 0.000 0.000 -21.077
Traceless
 xyz
x -0.041 0.000 0.000
y 0.000 -3.271 0.000
z 0.000 0.000 3.312
Polar
3z2-r26.625
x2-y22.154
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.876 0.000 0.000
y 0.000 4.330 0.000
z 0.000 0.000 3.883


<r2> (average value of r2) Å2
<r2> 54.791
(<r2>)1/2 7.402