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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: M06-2X/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-797.493858
Energy at 298.15K-797.495776
HF Energy-797.493858
Nuclear repulsion energy84.378075
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/6-31+G**
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 2658 2531 3.81      
2 A 886 843 1.25      
3 A 529 504 0.04      
4 A 273 260 23.63      
5 B 2658 2531 5.51      
6 B 872 830 12.85      

Unscaled Zero Point Vibrational Energy (zpe) 3937.8 cm-1
Scaled (by 0.9522) Zero Point Vibrational Energy (zpe) 3749.6 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/6-31+G**
ABC
4.90282 0.22843 0.22781

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.039 -0.054
S2 0.000 -1.039 -0.054
H3 0.972 1.232 0.856
H4 -0.972 -1.232 0.856

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07811.34522.6327
S22.07812.63271.3452
H31.34522.63273.1387
H42.63271.34523.1387

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.258 S2 S1 H3 98.258
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.092      
2 S -0.092      
3 H 0.092      
4 H 0.092      


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 1.518 1.518
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.925 2.622 0.000
y 2.622 -26.938 0.000
z 0.000 0.000 -27.580
Traceless
 xyz
x 0.334 2.622 0.000
y 2.622 0.315 0.000
z 0.000 0.000 -0.649
Polar
3z2-r2-1.297
x2-y20.012
xy2.622
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.457 0.460 0.000
y 0.460 7.016 0.000
z 0.000 0.000 4.390


<r2> (average value of r2) Å2
<r2> 57.988
(<r2>)1/2 7.615