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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: PBEPBE/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-995.495666
Energy at 298.15K-995.496445
Nuclear repulsion energy222.207650
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/6-31+G**
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 643 636 88.69      
2 A 612 605 1.18      
3 A 269 266 1.80      
4 A 166 165 2.43      
5 B 607 600 248.93      
6 B 283 280 13.85      

Unscaled Zero Point Vibrational Energy (zpe) 1289.9 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 1275.2 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 PBEPBE/6-31+G**
ABC
0.35431 0.08593 0.07944

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.396 0.876 -0.416
S2 0.396 -0.876 -0.416
F3 0.396 1.858 0.739
F4 -0.396 -1.858 0.739

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.92191.71072.9677
S21.92192.96771.7107
F31.71072.96773.7996
F42.96771.71073.7996

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 109.426 S2 S1 F3 109.426
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.294      
2 S 0.294      
3 F -0.294      
4 F -0.294      


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 -1.960 1.960
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.133 -2.553 0.000
y -2.553 -38.967 0.000
z 0.000 0.000 -35.970
Traceless
 xyz
x 2.336 -2.553 0.000
y -2.553 -3.416 0.000
z 0.000 0.000 1.080
Polar
3z2-r22.159
x2-y23.835
xy-2.553
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.754 -0.574 0.000
y -0.574 9.485 0.000
z 0.000 0.000 4.995


<r2> (average value of r2) Å2
<r2> 132.804
(<r2>)1/2 11.524