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All results from a given calculation for H2S2 (Disulfane)

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

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/6-31G**
 hartrees
Energy at 0K-797.492361
Energy at 298.15K-797.494230
HF Energy-797.492361
Nuclear repulsion energy84.429449
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/6-31G**
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 2649 2518 5.87      
2 A 882 838 1.22      
3 A 532 505 0.03      
4 A 237 225 21.69      
5 B 2650 2519 8.24      
6 B 871 828 11.45      

Unscaled Zero Point Vibrational Energy (zpe) 3910.5 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 3716.5 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/6-31G**
ABC
4.90459 0.22871 0.22819

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.038 -0.054
S2 0.000 -1.038 -0.054
H3 0.967 1.234 0.861
H4 -0.967 -1.234 0.861

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07631.34542.6335
S22.07632.63351.3454
H31.34542.63353.1358
H42.63351.34543.1358

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.378 S2 S1 H3 98.378
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.096      
2 S -0.096      
3 H 0.096      
4 H 0.096      


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 1.509 1.509
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.758 2.539 0.000
y 2.539 -26.607 0.000
z 0.000 0.000 -27.318
Traceless
 xyz
x 0.205 2.539 0.000
y 2.539 0.431 0.000
z 0.000 0.000 -0.636
Polar
3z2-r2-1.272
x2-y2-0.151
xy2.539
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.698 0.504 0.000
y 0.504 6.658 0.000
z 0.000 0.000 3.555


<r2> (average value of r2) Å2
<r2> 57.779
(<r2>)1/2 7.601