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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: M06-2X/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 M06-2X/cc-pVTZ
 hartrees
Energy at 0K-797.580676
Energy at 298.15K-797.582622
HF Energy-797.580676
Nuclear repulsion energy84.913717
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 M06-2X/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 2634 2516 0.21      
2 A 874 834 0.09      
3 A 536 512 0.02      
4 A 290 277 15.35      
5 B 2636 2517 1.73      
6 B 864 825 4.09      

Unscaled Zero Point Vibrational Energy (zpe) 3916.6 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 3740.7 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 M06-2X/cc-pVTZ
ABC
4.90871 0.23175 0.23110

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.032 -0.053
S2 0.000 -1.032 -0.053
H3 0.971 1.218 0.856
H4 -0.971 -1.218 0.856

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.06331.34332.6132
S22.06332.61321.3433
H31.34332.61323.1150
H42.61321.34333.1150

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.959 S2 S1 H3 97.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.134      
2 S -0.134      
3 H 0.134      
4 H 0.134      


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 1.205 1.205
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.605 2.140 0.000
y 2.140 -26.069 0.000
z 0.000 0.000 -27.188
Traceless
 xyz
x 0.023 2.140 0.000
y 2.140 0.828 0.000
z 0.000 0.000 -0.851
Polar
3z2-r2-1.702
x2-y2-0.536
xy2.140
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.471 0.403 0.000
y 0.403 7.492 0.000
z 0.000 0.000 4.354


<r2> (average value of r2) Å2
<r2> 57.091
(<r2>)1/2 7.556