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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: wB97X-D/CEP-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/CEP-31G*
 hartrees
Energy at 0K-21.493486
Energy at 298.15K-21.495686
HF Energy-21.493486
Nuclear repulsion energy16.335756
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/CEP-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 2692 2692 18.24      
2 A 930 930 1.19      
3 A 549 549 21.13      
4 A 530 530 1.07      
5 B 2694 2694 25.31      
6 B 931 931 13.29      

Unscaled Zero Point Vibrational Energy (zpe) 4162.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4162.5 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/CEP-31G*
ABC
4.79393 0.22506 0.22504

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.046 -0.056
S2 0.000 -1.046 -0.056
H3 0.956 1.242 0.892
H4 -0.956 -1.242 0.892

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.09201.36022.6544
S22.09202.65441.3602
H31.36022.65443.1340
H42.65441.36023.1340

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.279 S2 S1 H3 98.279
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.134      
2 S -0.134      
3 H 0.134      
4 H 0.134      


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 1.631 1.631
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.255 2.627 0.000
y 2.627 -24.737 0.000
z 0.000 0.000 -25.497
Traceless
 xyz
x -0.138 2.627 0.000
y 2.627 0.638 0.000
z 0.000 0.000 -0.500
Polar
3z2-r2-1.001
x2-y2-0.517
xy2.627
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.083 0.445 0.000
y 0.445 6.815 0.000
z 0.000 0.000 3.030


<r2> (average value of r2) Å2
<r2> 35.385
(<r2>)1/2 5.949