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

using model chemistry: M06-2X/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at M06-2X/Def2TZVPP
 hartrees
Energy at 0K-489.292337
Energy at 298.15K 
HF Energy-489.292337
Nuclear repulsion energy100.969042
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/Def2TZVPP
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 877 877 143.41 3.15 0.68 0.81
2 A1 350 350 20.23 0.60 0.27 0.42
3 B2 884 884 185.79 4.43 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1055.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1055.6 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/Def2TZVPP
ABC
0.99156 0.29617 0.22806

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.578
F2 0.000 1.224 -0.449
F3 0.000 -1.224 -0.449

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.59781.5978
F21.59782.4478
F31.59782.4478

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 99.989
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.571      
2 F -0.286      
3 F -0.286      


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 1.264 1.264
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.665 0.000 0.000
y 0.000 -24.863 0.000
z 0.000 0.000 -23.315
Traceless
 xyz
x 4.424 0.000 0.000
y 0.000 -3.373 0.000
z 0.000 0.000 -1.051
Polar
3z2-r2-2.101
x2-y25.198
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.878 0.000 0.000
y 0.000 3.965 0.000
z 0.000 0.000 3.496


<r2> (average value of r2) Å2
<r2> 49.397
(<r2>)1/2 7.028