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

using model chemistry: MP2=FULL/aug-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 MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-488.709025
Energy at 298.15K 
HF Energy-488.002854
Nuclear repulsion energy100.183968
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 MP2=FULL/aug-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 852 810 135.49 4.47 0.54 0.70
2 A1 341 324 18.47 0.85 0.12 0.21
3 B2 862 820 180.37 5.93 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1027.4 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 977.4 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 MP2=FULL/aug-cc-pVTZ
ABC
0.97730 0.29142 0.22448

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-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 1.234 -0.453
F3 0.000 -1.234 -0.453

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.61031.6103
F21.61032.4677
F31.61032.4677

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 100.037
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3B1)

Jump to S1C1
Energy calculated at MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-488.596500
Energy at 298.15K-488.476746
HF Energy-487.921961
Nuclear repulsion energy99.189996
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 MP2=FULL/aug-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 836 796 87.57      
2 A1 271 258 14.71      
3 B2 944 899 164.04      

Unscaled Zero Point Vibrational Energy (zpe) 1025.8 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 975.9 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 MP2=FULL/aug-cc-pVTZ
ABC
1.31470 0.24949 0.20970

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.521
F2 0.000 1.309 -0.405
F3 0.000 -1.309 -0.405

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.60321.6032
F21.60322.6184
F31.60322.6184

picture of Silicon difluoride state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Si1 F3 109.493
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability