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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B3PW91/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 B3PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-797.556820
Energy at 298.15K-797.558922
HF Energy-797.556820
Nuclear repulsion energy84.717427
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 B3PW91/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 2644 2552 0.32      
2 A 892 861 0.09      
3 A 519 501 0.00      
4 A 436 421 12.99      
5 B 2646 2554 2.92      
6 B 892 860 5.87      

Unscaled Zero Point Vibrational Energy (zpe) 4014.9 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 3874.7 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 B3PW91/aug-cc-pVTZ
ABC
4.87515 0.23059 0.23047

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.033 -0.055
S2 0.000 -1.033 -0.055
H3 0.952 1.232 0.880
H4 -0.952 -1.232 0.880

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.06641.34962.6290
S22.06642.62901.3496
H31.34962.62903.1138
H42.62901.34963.1138

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.456 S2 S1 H3 98.456
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.156      
2 S -0.156      
3 H 0.156      
4 H 0.156      


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 1.146 1.146
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.755 2.044 0.000
y 2.044 -25.993 0.000
z 0.000 0.000 -27.004
Traceless
 xyz
x -0.257 2.044 0.000
y 2.044 0.887 0.000
z 0.000 0.000 -0.630
Polar
3z2-r2-1.260
x2-y2-0.762
xy2.044
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.730 0.366 0.000
y 0.366 8.416 0.000
z 0.000 0.000 5.694


<r2> (average value of r2) Å2
<r2> 57.258
(<r2>)1/2 7.567