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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-995.508623
Energy at 298.15K-995.509583
HF Energy-995.508623
Nuclear repulsion energy227.463223
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 PBE1PBE/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 773 735 68.81      
2 A 611 581 0.09      
3 A 278 264 0.56      
4 A 183 174 3.02      
5 B 743 706 185.47      
6 B 309 294 12.06      

Unscaled Zero Point Vibrational Energy (zpe) 1448.7 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 1376.7 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 PBE1PBE/6-31G*
ABC
0.36879 0.09038 0.08412

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.397 0.876 -0.403
S2 0.397 -0.876 -0.403
F3 0.397 1.788 0.716
F4 -0.397 -1.788 0.716

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.92301.64672.8885
S21.92302.88851.6467
F31.64672.88853.6622
F42.88851.64673.6622

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 107.780 S2 S1 F3 107.780
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.346      
2 S 0.346      
3 F -0.346      
4 F -0.346      


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 -1.426 1.426
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.370 -1.693 0.000
y -1.693 -36.615 0.000
z 0.000 0.000 -34.739
Traceless
 xyz
x 1.307 -1.693 0.000
y -1.693 -2.060 0.000
z 0.000 0.000 0.753
Polar
3z2-r21.506
x2-y22.245
xy-1.693
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.660 -0.796 0.000
y -0.796 7.713 0.000
z 0.000 0.000 3.663


<r2> (average value of r2) Å2
<r2> 126.349
(<r2>)1/2 11.240