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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-995.460803
Energy at 298.15K-995.461625
Nuclear repulsion energy223.264244
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 PBEPBE/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 A 696 686 57.85      
2 A 598 589 0.02      
3 A 269 265 0.94      
4 A 170 167 2.27      
5 B 666 657 190.43      
6 B 282 278 9.89      

Unscaled Zero Point Vibrational Energy (zpe) 1340.7 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 1321.5 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 PBEPBE/6-31G*
ABC
0.37073 0.08540 0.07947

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.391 0.883 -0.405
S2 0.391 -0.883 -0.405
F3 0.391 1.864 0.719
F4 -0.391 -1.864 0.719

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.93161.68362.9678
S21.93162.96781.6836
F31.68362.96783.8082
F42.96781.68363.8082

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 110.166 S2 S1 F3 110.166
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.308      
2 S 0.308      
3 F -0.308      
4 F -0.308      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.367 1.367
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.347 -1.559 0.000
y -1.559 -36.816 0.000
z 0.000 0.000 -34.606
Traceless
 xyz
x 1.364 -1.559 0.000
y -1.559 -2.339 0.000
z 0.000 0.000 0.975
Polar
3z2-r21.951
x2-y22.469
xy-1.559
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.718 -0.809 0.000
y -0.809 8.458 0.000
z 0.000 0.000 3.780


<r2> (average value of r2) Å2
<r2> 131.676
(<r2>)1/2 11.475