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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: CID/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-989.522865
Energy at 298.15K-989.523896
Nuclear repulsion energy228.542312
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 CID/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 835 777 39.40      
2 A 609 566 0.07      
3 A 278 259 0.11      
4 A 187 174 4.33      
5 B 811 755 99.23      
6 B 319 297 13.67      

Unscaled Zero Point Vibrational Energy (zpe) 1519.7 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 1414.1 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 CID/3-21G*
ABC
0.35950 0.09269 0.08648

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.409 0.875 -0.404
S2 0.409 -0.875 -0.404
F3 0.409 1.746 0.718
F4 -0.409 -1.746 0.718

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.93121.63892.8510
S21.93122.85101.6389
F31.63892.85103.5873
F42.85101.63893.5873

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 105.699 S2 S1 F3 105.699
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability