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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-68.633817
Energy at 298.15K-68.634654
Nuclear repulsion energy58.195556
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/CEP-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 703 679 83.84      
2 A 574 554 1.64      
3 A 269 259 0.86      
4 A 174 168 3.48      
5 B 674 651 215.05      
6 B 298 288 13.49      

Unscaled Zero Point Vibrational Energy (zpe) 1345.3 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 1299.2 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 B3LYP/CEP-31G*
ABC
0.35394 0.08698 0.08088

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.404 0.891 -0.411
S2 0.404 -0.891 -0.411
F3 0.404 1.823 0.731
F4 -0.404 -1.823 0.731

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.95771.68172.9456
S21.95772.94561.6817
F31.68172.94563.7354
F42.94561.68173.7354

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 107.829 S2 S1 F3 107.829
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.284      
2 S 0.284      
3 F -0.284      
4 F -0.284      


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 -1.888 1.888
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.180 -2.418 0.000
y -2.418 -36.167 0.000
z 0.000 0.000 -33.817
Traceless
 xyz
x 1.812 -2.418 0.000
y -2.418 -2.669 0.000
z 0.000 0.000 0.857
Polar
3z2-r21.713
x2-y22.987
xy-2.418
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.574 -0.913 0.000
y -0.913 8.276 0.000
z 0.000 0.000 3.614


<r2> (average value of r2) Å2
<r2> 91.332
(<r2>)1/2 9.557