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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B2PLYP/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 B2PLYP/6-311G**
 hartrees
Energy at 0K-797.305796
Energy at 298.15K-797.307867
HF Energy-797.216828
Nuclear repulsion energy83.675303
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 B2PLYP/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 2693 2693 3.22      
2 A 896 896 0.61      
3 A 491 491 0.03      
4 A 428 428 18.90      
5 B 2695 2695 5.77      
6 B 893 893 10.42      

Unscaled Zero Point Vibrational Energy (zpe) 4047.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4047.5 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 B2PLYP/6-311G**
ABC
4.90216 0.22367 0.22364

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.050 -0.055
S2 0.000 -1.050 -0.055
H3 0.945 1.242 0.882
H4 -0.945 -1.242 0.882

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.09961.34472.6499
S22.09962.64991.3447
H31.34472.64993.1211
H42.64991.34473.1211

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.202 S2 S1 H3 98.202
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.082      
2 S -0.082      
3 H 0.082      
4 H 0.082      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.772 0.315 0.000
y 0.315 6.953 0.000
z 0.000 0.000 3.747


<r2> (average value of r2) Å2
<r2> 58.972
(<r2>)1/2 7.679