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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: PBEPBE/cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/cc-pCVTZ
 hartrees
Energy at 0K-797.286749
Energy at 298.15K-797.288841
HF Energy-797.286749
Nuclear repulsion energy84.584499
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 PBEPBE/cc-pCVTZ
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 2554 2554 2.47      
2 A 865 865 0.00      
3 A 504 504 0.15      
4 A 449 449 12.28      
5 B 2558 2558 8.12      
6 B 867 867 7.59      

Unscaled Zero Point Vibrational Energy (zpe) 3898.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3898.7 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 PBEPBE/cc-pCVTZ
ABC
4.80534 0.23032 0.23027

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.033 -0.056
S2 0.000 -1.033 -0.056
H3 0.956 1.238 0.890
H4 -0.956 -1.238 0.890

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.06661.36022.6396
S22.06662.63961.3602
H31.36022.63963.1289
H42.63961.36023.1289

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.658 S2 S1 H3 98.658
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.132      
2 S -0.132      
3 H 0.132      
4 H 0.132      


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 1.175 1.175
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.711 1.995 0.000
y 1.995 -25.833 0.000
z 0.000 0.000 -26.927
Traceless
 xyz
x -0.331 1.995 0.000
y 1.995 0.986 0.000
z 0.000 0.000 -0.655
Polar
3z2-r2-1.311
x2-y2-0.878
xy1.995
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.561 0.445 0.000
y 0.445 7.606 0.000
z 0.000 0.000 4.517


<r2> (average value of r2) Å2
<r2> 57.290
(<r2>)1/2 7.569