return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for SF4 (Sulfur tetrafluoride)

using model chemistry: MP2/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-106.159116
Energy at 298.15K 
HF Energy-105.276470
Nuclear repulsion energy117.617119
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/CEP-121G*
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 850 810 117.89      
2 A1 548 522 3.99      
3 A1 484 462 22.52      
4 A1 203 193 1.07      
5 A2 432 411 0.00      
6 B1 827 788 190.76      
7 B1 327 311 12.14      
8 B2 749 714 641.25      
9 B2 493 470 0.61      

Unscaled Zero Point Vibrational Energy (zpe) 2456.5 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 2340.6 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 MP2/CEP-121G*
ABC
0.20915 0.12831 0.10093

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.390
F2 0.000 1.693 0.276
F3 0.000 -1.693 0.276
F4 1.237 0.000 -0.623
F5 -1.237 0.000 -0.623

Atom - Atom Distances (Å)
  S1 F2 F3 F4 F5
S11.69681.69681.59851.5985
F21.69683.38592.28102.2810
F31.69683.38592.28102.2810
F41.59852.28102.28102.4735
F51.59852.28102.28102.4735

picture of Sulfur tetrafluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 S1 F3 172.279 F2 S1 F4 87.555
F2 S1 F5 87.555 F3 S1 F4 87.555
F3 S1 F5 87.555 F4 S1 F5 101.375
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability