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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B97D3/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 B97D3/TZVP
 hartrees
Energy at 0K-797.628655
Energy at 298.15K-797.630685
HF Energy-797.628655
Nuclear repulsion energy83.205279
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/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 2578 2541 9.00      
2 A 867 854 0.02      
3 A 463 456 0.43      
4 A 422 416 17.26      
5 B 2580 2543 15.22      
6 B 867 854 7.59      

Unscaled Zero Point Vibrational Energy (zpe) 3887.8 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 3831.8 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/TZVP
ABC
4.79629 0.22152 0.22147

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.055 -0.056
S2 0.000 -1.055 -0.056
H3 0.957 1.246 0.891
H4 -0.957 -1.246 0.891

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.10961.35902.6650
S22.10962.66501.3590
H31.35902.66503.1412
H42.66501.35903.1412

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.069 S2 S1 H3 98.069
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.112      
2 S -0.112      
3 H 0.112      
4 H 0.112      


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 1.436 1.436
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.766 2.306 0.000
y 2.306 -26.142 0.000
z 0.000 0.000 -27.026
Traceless
 xyz
x -0.182 2.306 0.000
y 2.306 0.753 0.000
z 0.000 0.000 -0.572
Polar
3z2-r2-1.143
x2-y2-0.623
xy2.306
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.769 0.425 0.000
y 0.425 6.987 0.000
z 0.000 0.000 3.728


<r2> (average value of r2) Å2
<r2> 58.863
(<r2>)1/2 7.672