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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-797.571786
Energy at 298.15K-797.573865
HF Energy-797.571786
Nuclear repulsion energy83.589725
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 B3LYPultrafine/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 2633 2522 17.49      
2 A 905 867 0.73      
3 A 496 475 0.23      
4 A 441 422 18.48      
5 B 2635 2524 24.36      
6 B 906 868 14.66      

Unscaled Zero Point Vibrational Energy (zpe) 4007.3 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 3839.0 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 B3LYPultrafine/6-31G*
ABC
4.84907 0.22371 0.22366

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.049 -0.055
S2 0.000 -1.049 -0.055
H3 0.952 1.258 0.886
H4 -0.952 -1.258 0.886

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.09781.35502.6675
S22.09782.66751.3550
H31.35502.66753.1559
H42.66751.35503.1559

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.893 S2 S1 H3 98.893
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.119      
2 S -0.119      
3 H 0.119      
4 H 0.119      


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 1.511 1.511
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.958 2.463 0.000
y 2.463 -26.426 0.000
z 0.000 0.000 -27.214
Traceless
 xyz
x -0.138 2.463 0.000
y 2.463 0.660 0.000
z 0.000 0.000 -0.523
Polar
3z2-r2-1.045
x2-y2-0.532
xy2.463
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.569 0.485 0.000
y 0.485 6.706 0.000
z 0.000 0.000 3.506


<r2> (average value of r2) Å2
<r2> 58.634
(<r2>)1/2 7.657