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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-995.838665
Energy at 298.15K-995.839251
Nuclear repulsion energy212.068621
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 mPW1PW91/6-31G
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 707 669 27.48      
2 A 470 445 0.28      
3 A 209 198 0.29      
4 A 146 138 4.47      
5 B 695 658 83.08      
6 B 242 229 9.45      

Unscaled Zero Point Vibrational Energy (zpe) 1234.2 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 1168.3 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 mPW1PW91/6-31G
ABC
0.29852 0.08113 0.07615

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.460 0.951 -0.436
S2 0.460 -0.951 -0.436
F3 0.460 1.838 0.776
F4 -0.460 -1.838 0.776

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S12.11331.76103.0415
S22.11333.04151.7610
F31.76103.04153.7891
F43.04151.76103.7891

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 103.073 S2 S1 F3 103.073
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.369      
2 S 0.369      
3 F -0.369      
4 F -0.369      


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 -2.294 2.294
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.088 -2.738 0.000
y -2.738 -39.168 0.000
z 0.000 0.000 -35.866
Traceless
 xyz
x 2.429 -2.738 0.000
y -2.738 -3.692 0.000
z 0.000 0.000 1.262
Polar
3z2-r22.525
x2-y24.081
xy-2.738
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.541 -0.888 0.000
y -0.888 8.351 0.000
z 0.000 0.000 3.583


<r2> (average value of r2) Å2
<r2> 140.197
(<r2>)1/2 11.840