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

using model chemistry: CCSD(T)/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 CCSD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-488.647778
Energy at 298.15K 
HF Energy-488.002715
Nuclear repulsion energy100.056299
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 CCSD(T)/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 848 823        
2 A1 337 327        
3 B2 860 834        

Unscaled Zero Point Vibrational Energy (zpe) 1022.5 cm-1
Scaled (by 0.9699) Zero Point Vibrational Energy (zpe) 991.7 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 CCSD(T)/aug-cc-pVTZ
ABC
0.97918 0.29002 0.22375

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.581
F2 0.000 1.237 -0.452
F3 0.000 -1.237 -0.452

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.61191.6119
F21.61192.4737
F31.61192.4737

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 100.226
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3B1)

Jump to S1C1
Energy calculated at CCSD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-488.531205
Energy at 298.15K-488.411443
HF Energy-487.921598
Nuclear repulsion energy98.886854
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 CCSD(T)/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 824 799        
2 A1 270 261        
3 B2 935 907        

Unscaled Zero Point Vibrational Energy (zpe) 1014.2 cm-1
Scaled (by 0.9699) Zero Point Vibrational Energy (zpe) 983.6 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 CCSD(T)/aug-cc-pVTZ
ABC
1.32835 0.24657 0.20797

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/aug-cc-pVTZ

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability