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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: PBEPBEultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-797.248418
Energy at 298.15K-797.250467
HF Energy-797.248418
Nuclear repulsion energy83.360606
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 PBEPBEultrafine/TZVP
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 2544 2515 6.20      
2 A 853 843 0.00      
3 A 485 480 0.38      
4 A 432 427 18.07      
5 B 2547 2518 11.81      
6 B 851 841 8.18      

Unscaled Zero Point Vibrational Energy (zpe) 3856.1 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 3812.1 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 PBEPBEultrafine/TZVP
ABC
4.75308 0.22295 0.22286

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.051 -0.056
S2 0.000 -1.051 -0.056
H3 0.963 1.248 0.893
H4 -0.963 -1.248 0.893

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.10201.36612.6669
S22.10202.66691.3661
H31.36612.66693.1523
H42.66691.36613.1523

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.286 S2 S1 H3 98.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.121      
2 S -0.121      
3 H 0.121      
4 H 0.121      


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 1.466 1.466
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.902 2.355 0.000
y 2.355 -26.290 0.000
z 0.000 0.000 -27.192
Traceless
 xyz
x -0.161 2.355 0.000
y 2.355 0.757 0.000
z 0.000 0.000 -0.596
Polar
3z2-r2-1.192
x2-y2-0.612
xy2.355
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.804 0.441 0.000
y 0.441 6.968 0.000
z 0.000 0.000 3.755


<r2> (average value of r2) Å2
<r2> 58.746
(<r2>)1/2 7.665