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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: wB97X-D/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 wB97X-D/6-31G**
 hartrees
Energy at 0K-797.536553
Energy at 298.15K-797.538661
HF Energy-797.536553
Nuclear repulsion energy84.411147
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 wB97X-D/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 2684 2684 8.16      
2 A 916 916 1.58      
3 A 530 530 0.04      
4 A 433 433 21.10      
5 B 2686 2686 12.18      
6 B 913 913 12.22      

Unscaled Zero Point Vibrational Energy (zpe) 4080.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4080.7 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 wB97X-D/6-31G**
ABC
4.90885 0.22842 0.22834

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.038 -0.055
S2 0.000 -1.038 -0.055
H3 0.948 1.244 0.879
H4 -0.948 -1.244 0.879

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07601.34642.6419
S22.07602.64191.3464
H31.34642.64193.1283
H42.64191.34643.1283

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.819 S2 S1 H3 98.819
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.096      
2 S -0.096      
3 H 0.096      
4 H 0.096      


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 1.564 1.564
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.758 2.555 0.000
y 2.555 -26.427 0.000
z 0.000 0.000 -27.044
Traceless
 xyz
x -0.023 2.555 0.000
y 2.555 0.474 0.000
z 0.000 0.000 -0.451
Polar
3z2-r2-0.903
x2-y2-0.331
xy2.555
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.580 0.479 0.000
y 0.479 6.545 0.000
z 0.000 0.000 3.514


<r2> (average value of r2) Å2
<r2> 57.715
(<r2>)1/2 7.597