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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: TPSSh/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at TPSSh/cc-pVTZ
 hartrees
Energy at 0K-797.657135
Energy at 298.15K-797.659250
HF Energy-797.657135
Nuclear repulsion energy84.575811
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 TPSSh/cc-pVTZ
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 2636 2553 2.22      
2 A 900 872 0.07      
3 A 512 496 0.08      
4 A 453 438 13.54      
5 B 2638 2555 6.58      
6 B 902 873 6.07      

Unscaled Zero Point Vibrational Energy (zpe) 4020.6 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 3893.2 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 TPSSh/cc-pVTZ
ABC
4.87124 0.22966 0.22962

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.033 -0.054
S2 0.000 -1.033 -0.054
H3 0.963 1.226 0.872
H4 -0.963 -1.226 0.872

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.06681.34972.6248
S22.06682.62481.3497
H31.34972.62483.1176
H42.62481.34973.1176

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.201 S2 S1 H3 98.201
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.097      
2 S -0.097      
3 H 0.097      
4 H 0.097      


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 1.220 1.220
CHELPG        
AIM        
ESP        


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 4.424 0.417 0.000
y 0.417 7.477 0.000
z 0.000 0.000 4.386


<r2> (average value of r2) Å2
<r2> 57.312
(<r2>)1/2 7.570