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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-995.936363
Energy at 298.15K-995.937239
Nuclear repulsion energy225.685851
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 B3PW91/6-311G**
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 677 652 74.33      
2 A 598 576 1.23      
3 A 276 266 1.42      
4 A 181 174 4.08      
5 B 645 621 201.47      
6 B 305 293 15.86      

Unscaled Zero Point Vibrational Energy (zpe) 1340.0 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 1290.5 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 B3PW91/6-311G**
ABC
0.35945 0.08932 0.08295

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.401 0.871 -0.409
S2 0.401 -0.871 -0.409
F3 0.401 1.806 0.726
F4 -0.401 -1.806 0.726

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.91681.67482.9069
S21.91682.90691.6748
F31.67482.90693.6994
F42.90691.67483.6994

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 107.880 S2 S1 F3 107.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** 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 -2.016 2.016
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.582 -2.412 0.000
y -2.412 -38.452 0.000
z 0.000 0.000 -35.319
Traceless
 xyz
x 2.304 -2.412 0.000
y -2.412 -3.501 0.000
z 0.000 0.000 1.197
Polar
3z2-r22.395
x2-y23.870
xy-2.412
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.584 -0.845 0.000
y -0.845 7.917 0.000
z 0.000 0.000 3.617


<r2> (average value of r2) Å2
<r2> 128.371
(<r2>)1/2 11.330