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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-797.648924
Energy at 298.15K-797.651016
HF Energy-797.648924
Nuclear repulsion energy84.535843
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 B3LYP/Def2TZVPP
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 2625 2527 2.02      
2 A 894 861 0.02      
3 A 502 484 0.06      
4 A 444 427 12.71      
5 B 2628 2529 6.10      
6 B 897 863 5.96      

Unscaled Zero Point Vibrational Energy (zpe) 3994.6 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 3845.2 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 B3LYP/Def2TZVPP
ABC
4.89959 0.22921 0.22920

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.034 -0.054
S2 0.000 -1.034 -0.054
H3 0.957 1.234 0.872
H4 -0.957 -1.234 0.872

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.06811.34652.6303
S22.06812.63031.3465
H31.34652.63033.1233
H42.63031.34653.1233

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.551 S2 S1 H3 98.551
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.116      
2 S -0.116      
3 H 0.116      
4 H 0.116      


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 1.186 1.186
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.841 2.035 0.000
y 2.035 -25.940 0.000
z 0.000 0.000 -27.029
Traceless
 xyz
x -0.357 2.035 0.000
y 2.035 0.996 0.000
z 0.000 0.000 -0.639
Polar
3z2-r2-1.278
x2-y2-0.901
xy2.035
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.403 0.397 0.000
y 0.397 7.499 0.000
z 0.000 0.000 4.378


<r2> (average value of r2) Å2
<r2> 57.484
(<r2>)1/2 7.582