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return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for (sulfur difluoride)

using model chemistry: G2MP2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G2MP2
 hartrees
Energy at 0K-597.178702
Energy at 298.15K-597.174413
Nuclear repulsion energy 
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 HF/6-31G*
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 940 886 91.19      
2 A1 380 358 9.35      
3 B2 926 873 149.23      

Unscaled Zero Point Vibrational Energy (zpe) 1123.2 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 1058.3 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/6-31G*
ABC
0.88189 0.29094 0.21877

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.550
F2 0.000 1.231 -0.489
F3 0.000 -1.231 -0.489

Atom - Atom Distances (Å)
  S1 F2 F3
S11.61081.6108
F21.61082.4613
F31.61082.4613

picture of sulfur difluoride state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability