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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: wB97X-D/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-797.538083
Energy at 298.15K-797.540179
HF Energy-797.538083
Nuclear repulsion energy84.338565
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/6-31+G**
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 2685 2557 5.42      
2 A 912 869 1.56      
3 A 526 501 0.04      
4 A 425 404 22.83      
5 B 2687 2559 8.32      
6 B 907 864 13.77      

Unscaled Zero Point Vibrational Energy (zpe) 4070.8 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 3876.6 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 wB97X-D/6-31+G**
ABC
4.90609 0.22797 0.22785

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.036 -0.053
S2 0.000 -1.036 -0.053
H3 0.979 1.242 0.849
H4 -0.979 -1.242 0.849

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07261.34712.6386
S22.07262.63861.3471
H31.34712.63863.1623
H42.63861.34713.1623

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.772 S2 S1 H3 98.772
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.091      
2 S -0.091      
3 H 0.091      
4 H 0.091      


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 1.578 1.578
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.919 2.623 0.000
y 2.623 -26.711 0.000
z 0.000 0.000 -27.248
Traceless
 xyz
x 0.060 2.623 0.000
y 2.623 0.372 0.000
z 0.000 0.000 -0.433
Polar
3z2-r2-0.865
x2-y2-0.208
xy2.623
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.365 0.431 0.000
y 0.431 6.889 0.000
z 0.000 0.000 4.323


<r2> (average value of r2) Å2
<r2> 57.922
(<r2>)1/2 7.611