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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: PBEPBE/cc-pV(D+d)Z

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-pV(D+d)Z
 hartrees
Energy at 0K-797.244770
Energy at 298.15K 
HF Energy-797.244770
Nuclear repulsion energy84.244935
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-pV(D+d)Z
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 5.29      
2 A 860 860 0.01      
3 A 498 498 0.53      
4 A 449 449 14.17      
5 B 2556 2556 14.62      
6 B 866 866 9.29      

Unscaled Zero Point Vibrational Energy (zpe) 3890.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3890.2 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 PBEPBE/cc-pV(D+d)Z
ABC
4.74387 0.22867 0.22865

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pV(D+d)Z

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.037 -0.056
S2 0.000 -1.037 -0.056
H3 0.961 1.246 0.897
H4 -0.961 -1.246 0.897

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07351.36962.6539
S22.07352.65391.3696
H31.36962.65393.1477
H42.65391.36963.1477

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.790 S2 S1 H3 98.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pV(D+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.106      
2 S -0.106      
3 H 0.106      
4 H 0.106      


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 1.323 1.323
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.533 2.132 0.000
y 2.132 -25.684 0.000
z 0.000 0.000 -26.752
Traceless
 xyz
x -0.315 2.132 0.000
y 2.132 0.958 0.000
z 0.000 0.000 -0.644
Polar
3z2-r2-1.288
x2-y2-0.849
xy2.132
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.643 0.565 0.000
y 0.565 6.674 0.000
z 0.000 0.000 3.578


<r2> (average value of r2) Å2
<r2> 57.500
(<r2>)1/2 7.583