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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-797.466130
Energy at 298.15K-797.468059
HF Energy-797.466130
Nuclear repulsion energy79.619029
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 2540 2540 28.17      
2 A 855 855 1.61      
3 A 470 470 0.00      
4 A 338 338 36.72      
5 B 2541 2541 35.31      
6 B 835 835 3.29      

Unscaled Zero Point Vibrational Energy (zpe) 3789.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3789.3 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 wB97X-D/6-31G
ABC
4.67244 0.20079 0.20027

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 1.110 -0.055
S2 0.000 -1.110 -0.055
H3 0.995 1.291 0.877
H4 -0.995 -1.291 0.877

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.22051.37502.7613
S22.22052.76131.3750
H31.37502.76133.2606
H42.76131.37503.2606

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.564 S2 S1 H3 97.564
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 -0.089      
2 S -0.089      
3 H 0.089      
4 H 0.089      


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 1.954 1.954
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.124 3.160 0.000
y 3.160 -27.400 0.000
z 0.000 0.000 -27.840
Traceless
 xyz
x 0.496 3.160 0.000
y 3.160 0.082 0.000
z 0.000 0.000 -0.578
Polar
3z2-r2-1.156
x2-y20.276
xy3.160
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.408 0.588 0.000
y 0.588 7.649 0.000
z 0.000 0.000 3.178


<r2> (average value of r2) Å2
<r2> 63.540
(<r2>)1/2 7.971