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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-67.545395
Energy at 298.15K-67.546465
Nuclear repulsion energy60.092754
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 HF/CEP-121G*
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 846 764 113.50      
2 A 594 537 0.05      
3 A 292 264 0.11      
4 A 183 165 3.96      
5 B 819 740 200.79      
6 B 347 313 18.19      

Unscaled Zero Point Vibrational Energy (zpe) 1539.7 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 1391.0 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 HF/CEP-121G*
ABC
0.35353 0.09373 0.08722

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.411 0.894 -0.408
S2 0.411 -0.894 -0.408
F3 0.411 1.714 0.725
F4 -0.411 -1.714 0.725

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.96711.62152.8425
S21.96712.84251.6215
F31.62152.84253.5244
F42.84251.62153.5244

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 104.349 S2 S1 F3 104.349
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.365      
2 S 0.365      
3 F -0.365      
4 F -0.365      


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 -1.838 1.838
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.542 -2.447 0.000
y -2.447 -35.863 0.000
z 0.000 0.000 -34.265
Traceless
 xyz
x 1.522 -2.447 0.000
y -2.447 -1.960 0.000
z 0.000 0.000 0.438
Polar
3z2-r20.876
x2-y22.321
xy-2.447
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.989 -0.621 0.000
y -0.621 7.066 0.000
z 0.000 0.000 4.024


<r2> (average value of r2) Å2
<r2> 86.010
(<r2>)1/2 9.274