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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: LSDA/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at LSDA/6-311G**
 hartrees
Energy at 0K-795.534095
Energy at 298.15K-795.536154
HF Energy-795.534095
Nuclear repulsion energy84.192010
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 LSDA/6-311G**
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 2562 2530 1.39      
2 A 849 838 0.10      
3 A 494 488 0.41      
4 A 441 436 21.07      
5 B 2565 2533 5.34      
6 B 842 831 12.45      

Unscaled Zero Point Vibrational Energy (zpe) 3875.8 cm-1
Scaled (by 0.9877) Zero Point Vibrational Energy (zpe) 3828.1 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 LSDA/6-311G**
ABC
4.77600 0.22810 0.22799

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.036 -0.054
S2 0.000 -1.036 -0.054
H3 0.984 1.238 0.867
H4 -0.984 -1.238 0.867

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07131.36312.6435
S22.07132.64351.3631
H31.36312.64353.1634
H42.64351.36313.1634

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.556 S2 S1 H3 98.556
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.122      
2 S -0.122      
3 H 0.122      
4 H 0.122      


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 1.610 1.610
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.450 2.533 0.000
y 2.533 -27.153 0.000
z 0.000 0.000 -27.784
Traceless
 xyz
x 0.018 2.533 0.000
y 2.533 0.464 0.000
z 0.000 0.000 -0.482
Polar
3z2-r2-0.964
x2-y2-0.297
xy2.533
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.938 0.333 0.000
y 0.333 6.988 0.000
z 0.000 0.000 3.897


<r2> (average value of r2) Å2
<r2> 58.290
(<r2>)1/2 7.635