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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-990.787358
Energy at 298.15K-990.787837
Nuclear repulsion energy210.004894
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 B3PW91/3-21G
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 737 708 15.01      
2 A 395 379 0.00      
3 A 187 179 0.05      
4 A 144 138 2.71      
5 B 724 695 72.82      
6 B 217 209 4.70      

Unscaled Zero Point Vibrational Energy (zpe) 1201.2 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 1154.6 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 B3PW91/3-21G
ABC
0.31334 0.07681 0.07278

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.453 1.005 -0.423
S2 0.453 -1.005 -0.423
F3 0.453 1.878 0.753
F4 -0.453 -1.878 0.753

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S12.20441.72193.1136
S22.20443.11361.7219
F31.72193.11363.8634
F43.11361.72193.8634

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 104.262 S2 S1 F3 104.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.301      
2 S 0.301      
3 F -0.301      
4 F -0.301      


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 -1.486 1.486
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.314 -1.891 0.000
y -1.891 -37.574 0.000
z 0.000 0.000 -35.726
Traceless
 xyz
x 1.336 -1.891 0.000
y -1.891 -2.054 0.000
z 0.000 0.000 0.718
Polar
3z2-r21.436
x2-y22.260
xy-1.891
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.146 -1.083 0.000
y -1.083 8.417 0.000
z 0.000 0.000 3.071


<r2> (average value of r2) Å2
<r2> 144.592
(<r2>)1/2 12.025