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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: wB97X-D/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-797.552791
Energy at 298.15K-797.554918
HF Energy-797.552791
Nuclear repulsion energy84.975613
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(2df,p)
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 2675 2675 0.97      
2 A 905 905 0.49      
3 A 538 538 0.03      
4 A 449 449 16.05      
5 B 2677 2677 3.41      
6 B 907 907 7.59      

Unscaled Zero Point Vibrational Energy (zpe) 4075.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4075.8 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(2df,p)
ABC
4.91373 0.23192 0.23187

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.030 -0.055
S2 0.000 -1.030 -0.055
H3 0.946 1.231 0.880
H4 -0.946 -1.231 0.880

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.06021.34482.6227
S22.06022.62271.3448
H31.34482.62273.1041
H42.62271.34483.1041

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.574 S2 S1 H3 98.574
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.189      
2 S -0.189      
3 H 0.189      
4 H 0.189      


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 1.328 1.328
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.489 2.276 0.000
y 2.276 -25.865 0.000
z 0.000 0.000 -26.715
Traceless
 xyz
x -0.199 2.276 0.000
y 2.276 0.738 0.000
z 0.000 0.000 -0.539
Polar
3z2-r2-1.077
x2-y2-0.625
xy2.276
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.267 0.392 0.000
y 0.392 7.048 0.000
z 0.000 0.000 4.223


<r2> (average value of r2) Å2
<r2> 56.878
(<r2>)1/2 7.542