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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: PBEPBE/cc-pCVDZ

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-pCVDZ
 hartrees
Energy at 0K-797.244297
Energy at 298.15K-797.246358
HF Energy-797.244297
Nuclear repulsion energy83.483064
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-pCVDZ
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 2552 2552 5.20      
2 A 849 849 0.01      
3 A 491 491 0.37      
4 A 431 431 15.46      
5 B 2556 2556 12.82      
6 B 852 852 6.59      

Unscaled Zero Point Vibrational Energy (zpe) 3865.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3865.0 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-pCVDZ
ABC
4.70535 0.22410 0.22404

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.048 -0.056
S2 0.000 -1.048 -0.056
H3 0.967 1.246 0.898
H4 -0.967 -1.246 0.898

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.09601.37322.6666
S22.09602.66661.3732
H31.37322.66663.1550
H42.66661.37323.1550

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.309 S2 S1 H3 98.309
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pCVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.114      
2 S -0.114      
3 H 0.114      
4 H 0.114      


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 1.355 1.355
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.586 2.179 0.000
y 2.179 -25.760 0.000
z 0.000 0.000 -26.837
Traceless
 xyz
x -0.287 2.179 0.000
y 2.179 0.951 0.000
z 0.000 0.000 -0.664
Polar
3z2-r2-1.328
x2-y2-0.825
xy2.179
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.663 0.553 0.000
y 0.553 6.745 0.000
z 0.000 0.000 3.590


<r2> (average value of r2) Å2
<r2> 58.323
(<r2>)1/2 7.637