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

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVDZ
 hartrees
Energy at 0K-488.371957
Energy at 298.15K 
HF Energy-487.894864
Nuclear repulsion energy97.414135
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)/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 845 827        
2 A1 326 319        
3 B2 867 849        

Unscaled Zero Point Vibrational Energy (zpe) 1019.0 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 997.4 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 CCSD(T)/cc-pVDZ
ABC
0.92503 0.27539 0.21221

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.598
F2 0.000 1.269 -0.465
F3 0.000 -1.269 -0.465

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.65591.6559
F21.65592.5385
F31.65592.5385

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 100.083
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3B1)

Jump to S1C1
Energy calculated at CCSD(T)/cc-pVDZ
 hartrees
Energy at 0K-488.255210
Energy at 298.15K-488.135413
HF Energy-487.808338
Nuclear repulsion energy95.849052
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)/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 798 781        
2 A1 253 248        
3 B2 924 904        

Unscaled Zero Point Vibrational Energy (zpe) 987.1 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 966.2 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)/cc-pVDZ
ABC
1.31772 0.22752 0.19402

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

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability