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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: PBE1PBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBE1PBE/TZVP
 hartrees
Energy at 0K-797.312752
Energy at 298.15K-797.314859
HF Energy-797.312752
Nuclear repulsion energy84.295609
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 PBE1PBE/TZVP
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 2662 2554 3.05      
2 A 898 862 0.25      
3 A 522 500 0.12      
4 A 440 422 20.20      
5 B 2664 2556 6.22      
6 B 896 859 7.02      

Unscaled Zero Point Vibrational Energy (zpe) 4040.3 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 3877.0 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 PBE1PBE/TZVP
ABC
4.84524 0.22808 0.22802

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.039 -0.055
S2 0.000 -1.039 -0.055
H3 0.953 1.234 0.885
H4 -0.953 -1.234 0.885

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07811.35302.6378
S22.07812.63781.3530
H31.35302.63783.1174
H42.63781.35303.1174

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.272 S2 S1 H3 98.272
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/TZVP 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 1.517 1.517
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.782 2.446 0.000
y 2.446 -26.318 0.000
z 0.000 0.000 -27.059
Traceless
 xyz
x -0.093 2.446 0.000
y 2.446 0.602 0.000
z 0.000 0.000 -0.509
Polar
3z2-r2-1.018
x2-y2-0.463
xy2.446
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.699 0.429 0.000
y 0.429 6.705 0.000
z 0.000 0.000 3.657


<r2> (average value of r2) Å2
<r2> 57.760
(<r2>)1/2 7.600