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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: PBE1PBE/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 PBE1PBE/6-311G*
 hartrees
Energy at 0K-797.304109
Energy at 298.15K-797.306221
HF Energy-797.304109
Nuclear repulsion energy84.285874
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 PBE1PBE/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 2623 2514 7.31      
2 A 917 879 0.19      
3 A 510 489 0.19      
4 A 452 433 22.11      
5 B 2624 2516 13.14      
6 B 916 878 11.32      

Unscaled Zero Point Vibrational Energy (zpe) 4020.9 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 3854.0 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 PBE1PBE/6-311G*
ABC
4.86053 0.22800 0.22798

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.039 -0.055
S2 0.000 -1.039 -0.055
H3 0.950 1.248 0.886
H4 -0.950 -1.248 0.886

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07731.35352.6490
S22.07732.64901.3535
H31.35352.64903.1371
H42.64901.35353.1371

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.901 S2 S1 H3 98.901
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.176      
2 S -0.176      
3 H 0.176      
4 H 0.176      


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 1.640 1.640
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.337 2.611 0.000
y 2.611 -27.026 0.000
z 0.000 0.000 -27.604
Traceless
 xyz
x -0.022 2.611 0.000
y 2.611 0.444 0.000
z 0.000 0.000 -0.422
Polar
3z2-r2-0.845
x2-y2-0.311
xy2.611
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.676 0.340 0.000
y 0.340 6.731 0.000
z 0.000 0.000 3.649


<r2> (average value of r2) Å2
<r2> 58.175
(<r2>)1/2 7.627