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

using model chemistry: B2PLYP=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-489.039998
Energy at 298.15K 
HF Energy-488.853535
Nuclear repulsion energy100.781611
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 B2PLYP=FULL/6-31G(2df,p)
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 873 873 103.75 3.58 0.56 0.72
2 A1 341 341 16.24 0.59 0.23 0.37
3 B2 904 904 129.43 4.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1058.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1058.6 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 B2PLYP=FULL/6-31G(2df,p)
ABC
1.01393 0.29118 0.22622

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.571
F2 0.000 1.234 -0.444
F3 0.000 -1.234 -0.444

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.59861.5986
F21.59862.4687
F31.59862.4687

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 101.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability