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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-995.539003
Energy at 298.15K-995.539914
HF Energy-995.337963
Nuclear repulsion energy225.999510
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 B2PLYP/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 748 710 65.02      
2 A 593 563 0.29      
3 A 272 258 0.75      
4 A 180 171 3.11      
5 B 720 684 175.76      
6 B 303 288 12.21      

Unscaled Zero Point Vibrational Energy (zpe) 1408.4 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 1336.9 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 B2PLYP/6-31G*
ABC
0.36106 0.08956 0.08333

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.402 0.880 -0.406
S2 0.402 -0.880 -0.406
F3 0.402 1.794 0.723
F4 -0.402 -1.794 0.723

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.93481.65992.9024
S21.93482.90241.6599
F31.65992.90243.6765
F42.90241.65993.6765

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 107.441 S2 S1 F3 107.441
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.390      
2 S 0.390      
3 F -0.390      
4 F -0.390      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.665 -0.787 0.000
y -0.787 7.777 0.000
z 0.000 0.000 3.691


<r2> (average value of r2) Å2
<r2> 127.701
(<r2>)1/2 11.300