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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-995.828258
Energy at 298.15K-995.829183
Nuclear repulsion energy226.413307
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 B3PW91/6-31G*
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 752 719 66.91      
2 A 602 576 0.14      
3 A 275 263 0.67      
4 A 181 173 2.97      
5 B 722 691 186.64      
6 B 304 291 11.88      

Unscaled Zero Point Vibrational Energy (zpe) 1417.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 1356.3 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 B3PW91/6-31G*
ABC
0.36755 0.08931 0.08311

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.397 0.878 -0.404
S2 0.397 -0.878 -0.404
F3 0.397 1.802 0.718
F4 -0.397 -1.802 0.718

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.92751.65542.9055
S21.92752.90551.6554
F31.65542.90553.6904
F42.90551.65543.6904

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 108.132 S2 S1 F3 108.132
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.343      
2 S 0.343      
3 F -0.343      
4 F -0.343      


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 -1.467 1.467
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.273 -1.740 0.000
y -1.740 -36.668 0.000
z 0.000 0.000 -34.655
Traceless
 xyz
x 1.389 -1.740 0.000
y -1.740 -2.204 0.000
z 0.000 0.000 0.815
Polar
3z2-r21.631
x2-y22.395
xy-1.740
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.670 -0.800 0.000
y -0.800 7.837 0.000
z 0.000 0.000 3.685


<r2> (average value of r2) Å2
<r2> 127.480
(<r2>)1/2 11.291