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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: B3LYP/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 B3LYP/6-31+G**
 hartrees
Energy at 0K-996.034090
Energy at 298.15K-996.034936
Nuclear repulsion energy224.144158
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 B3LYP/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 685 660 93.74      
2 A 586 565 2.93      
3 A 271 262 1.45      
4 A 175 168 3.04      
5 B 652 629 234.08      
6 B 299 289 15.46      

Unscaled Zero Point Vibrational Energy (zpe) 1333.8 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 1286.0 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 B3LYP/6-31+G**
ABC
0.35012 0.08872 0.08210

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.403 0.880 -0.415
S2 0.403 -0.880 -0.415
F3 0.403 1.806 0.739
F4 -0.403 -1.806 0.739

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.93541.68532.9233
S21.93542.92331.6853
F31.68532.92333.7012
F42.92331.68533.7012

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 107.483 S2 S1 F3 107.483
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.327      
2 S 0.327      
3 F -0.327      
4 F -0.327      


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 -2.014 2.014
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.142 -2.675 0.000
y -2.675 -38.711 0.000
z 0.000 0.000 -36.074
Traceless
 xyz
x 2.250 -2.675 0.000
y -2.675 -3.104 0.000
z 0.000 0.000 0.853
Polar
3z2-r21.706
x2-y23.569
xy-2.675
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.678 -0.606 0.000
y -0.606 8.809 0.000
z 0.000 0.000 4.851


<r2> (average value of r2) Å2
<r2> 129.838
(<r2>)1/2 11.395