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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-994.003810
Energy at 298.15K-994.004973
HF Energy-994.003810
Nuclear repulsion energy232.993373
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 HF/Def2TZVPP
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 875 793 122.15      
2 A 599 543 0.00      
3 A 313 284 0.14      
4 A 197 178 2.46      
5 B 841 762 228.27      
6 B 366 332 16.23      

Unscaled Zero Point Vibrational Energy (zpe) 1595.5 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 1446.1 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 HF/Def2TZVPP
ABC
0.37854 0.09602 0.08910

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.384 0.890 -0.413
S2 0.384 -0.890 -0.413
F3 0.384 1.682 0.735
F4 -0.384 -1.682 0.735

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.93951.59262.8177
S21.93952.81771.5926
F31.59262.81773.4515
F42.81771.59263.4515

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 105.408 S2 S1 F3 105.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.292      
2 S 0.292      
3 F -0.292      
4 F -0.292      


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 -1.399 1.399
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.935 -2.071 0.000
y -2.071 -36.375 0.000
z 0.000 0.000 -35.602
Traceless
 xyz
x 1.054 -2.071 0.000
y -2.071 -1.107 0.000
z 0.000 0.000 0.053
Polar
3z2-r20.106
x2-y21.440
xy-2.071
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.126 -0.711 0.000
y -0.711 7.098 0.000
z 0.000 0.000 4.115


<r2> (average value of r2) Å2
<r2> 121.071
(<r2>)1/2 11.003