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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B3LYP/aug-cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/aug-cc-pCVTZ
 hartrees
Energy at 0K-797.668774
Energy at 298.15K 
HF Energy-797.668774
Nuclear repulsion energy84.497068
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 B3LYP/aug-cc-pCVTZ
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 2623 0.62      
2 A 892 892 0.06      
3 A 503 503 0.01      
4 A 437 437 11.83      
5 B 2625 2625 3.41      
6 B 893 893 7.21      

Unscaled Zero Point Vibrational Energy (zpe) 3985.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3985.8 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 B3LYP/aug-cc-pCVTZ
ABC
4.89698 0.22904 0.22896

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pCVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.037 -0.055
S2 0.000 -1.037 -0.055
H3 0.949 1.241 0.880
H4 -0.949 -1.241 0.880

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07321.34762.6381
S22.07322.63811.3476
H31.34762.63813.1232
H42.63811.34763.1232

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.703 S2 S1 H3 98.703
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.147      
2 S -0.147      
3 H 0.147      
4 H 0.147      


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 1.101 1.101
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.062 1.983 0.000
y 1.983 -26.262 0.000
z 0.000 0.000 -27.277
Traceless
 xyz
x -0.292 1.983 0.000
y 1.983 0.907 0.000
z 0.000 0.000 -0.615
Polar
3z2-r2-1.230
x2-y2-0.800
xy1.983
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.808 0.363 0.000
y 0.363 8.586 0.000
z 0.000 0.000 5.776


<r2> (average value of r2) Å2
<r2> 57.690
(<r2>)1/2 7.595