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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: TPSSh/6-311G*

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/6-311G*
 hartrees
Energy at 0K-797.622254
Energy at 298.15K-797.624350
HF Energy-797.622254
Nuclear repulsion energy83.734665
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/6-311G*
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 2597 2501 10.80      
2 A 913 880 0.15      
3 A 486 468 0.81      
4 A 455 439 19.63      
5 B 2598 2502 18.15      
6 B 914 880 12.47      

Unscaled Zero Point Vibrational Energy (zpe) 3981.1 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 3834.6 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/6-311G*
ABC
4.84516 0.22460 0.22457

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.047 -0.055
S2 0.000 -1.047 -0.055
H3 0.952 1.251 0.887
H4 -0.952 -1.251 0.887

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.09381.35462.6599
S22.09382.65991.3546
H31.35462.65993.1441
H42.65991.35463.1441

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.676 S2 S1 H3 98.676
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.169      
2 S -0.169      
3 H 0.169      
4 H 0.169      


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 1.587 1.587
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 3.668 0.346 0.000
y 0.346 6.852 0.000
z 0.000 0.000 3.638


<r2> (average value of r2) Å2
<r2> 58.721
(<r2>)1/2 7.663