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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: PBEPBE/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-797.277464
Energy at 298.15K-797.279531
HF Energy-797.277464
Nuclear repulsion energy84.153432
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/aug-cc-pVTZ
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 2560 2544 0.80      
2 A 860 854 0.00      
3 A 499 495 0.02      
4 A 434 431 11.87      
5 B 2563 2547 5.08      
6 B 859 854 6.84      

Unscaled Zero Point Vibrational Energy (zpe) 3887.3 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 3862.1 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 PBEPBE/aug-cc-pVTZ
ABC
4.78700 0.22771 0.22760

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.040 -0.056
S2 0.000 -1.040 -0.056
H3 0.961 1.239 0.889
H4 -0.961 -1.239 0.889

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07931.36182.6468
S22.07932.64681.3618
H31.36182.64683.1355
H42.64681.36183.1355

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.403 S2 S1 H3 98.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.115      
2 S -0.115      
3 H 0.115      
4 H 0.115      


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 1.106 1.106
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.003 1.958 0.000
y 1.958 -26.180 0.000
z 0.000 0.000 -27.246
Traceless
 xyz
x -0.290 1.958 0.000
y 1.958 0.944 0.000
z 0.000 0.000 -0.655
Polar
3z2-r2-1.310
x2-y2-0.823
xy1.958
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.943 0.396 0.000
y 0.396 8.721 0.000
z 0.000 0.000 5.906


<r2> (average value of r2) Å2
<r2> 57.926
(<r2>)1/2 7.611