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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B97D3/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B97D3/6-31G(2df,p)
 hartrees
Energy at 0K-797.590497
Energy at 298.15K-797.592561
HF Energy-797.590497
Nuclear repulsion energy 
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 B97D3/6-31G(2df,p)
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 2586 2586 4.15      
2 A 875 875 0.08      
3 A 486 486 0.21      
4 A 437 437 13.89      
5 B 2589 2589 9.34      
6 B 879 879 9.86      

Unscaled Zero Point Vibrational Energy (zpe) 3926.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3926.7 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 B97D3/6-31G(2df,p)
ABC
4.84188 0.22772 0.22767

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.040 -0.055
S2 0.000 -1.040 -0.055
H3 0.953 1.241 0.886
H4 -0.953 -1.241 0.886

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07921.35462.6448
S22.07922.64481.3546
H31.35462.64483.1291
H42.64481.35463.1291

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.542 S2 S1 H3 98.542
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.179      
2 S -0.179      
3 H 0.179      
4 H 0.179      


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 1.264 1.264
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.385 2.142 0.000
y 2.142 -25.671 0.000
z 0.000 0.000 -26.607
Traceless
 xyz
x -0.246 2.142 0.000
y 2.142 0.825 0.000
z 0.000 0.000 -0.580
Polar
3z2-r2-1.159
x2-y2-0.714
xy2.142
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.308 0.403 0.000
y 0.403 7.213 0.000
z 0.000 0.000 4.262


<r2> (average value of r2) Å2
<r2> 57.527
(<r2>)1/2 7.585