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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: wB97X-D/STO-3G

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/STO-3G
 hartrees
Energy at 0K-788.734696
Energy at 298.15K-788.736698
HF Energy-788.734696
Nuclear repulsion energy83.747145
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/STO-3G
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 2954 2954 30.60      
2 A 997 997 9.99      
3 A 634 634 0.02      
4 A 341 341 10.28      
5 B 2956 2956 32.53      
6 B 997 997 12.83      

Unscaled Zero Point Vibrational Energy (zpe) 4439.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4439.6 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/STO-3G
ABC
4.73629 0.22547 0.22476

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.047 -0.054
S2 0.000 -1.047 -0.054
H3 0.990 1.193 0.868
H4 -0.990 -1.193 0.868

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.09491.36112.6176
S22.09492.61761.3611
H31.36112.61763.1012
H42.61761.36113.1012

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 96.149 S2 S1 H3 96.149
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.017      
2 S 0.017      
3 H -0.017      
4 H -0.017      


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 1.072 1.072
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.929 1.496 0.000
y 1.496 -23.893 0.000
z 0.000 0.000 -23.282
Traceless
 xyz
x 0.659 1.496 0.000
y 1.496 -0.787 0.000
z 0.000 0.000 0.129
Polar
3z2-r20.258
x2-y20.964
xy1.496
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.451 0.619 0.000
y 0.619 3.471 0.000
z 0.000 0.000 1.208


<r2> (average value of r2) Å2
<r2> 56.114
(<r2>)1/2 7.491