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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-797.295151
Energy at 298.15K-797.297261
HF Energy-797.295151
Nuclear repulsion energy84.523467
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 HSEh1PBE/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 2674 2552 7.93      
2 A 912 870 1.15      
3 A 525 501 0.12      
4 A 441 421 20.56      
5 B 2676 2554 12.38      
6 B 909 867 14.37      

Unscaled Zero Point Vibrational Energy (zpe) 4068.4 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 3882.5 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 HSEh1PBE/6-31G**
ABC
4.88746 0.22935 0.22924

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.036 -0.055
S2 0.000 -1.036 -0.055
H3 0.951 1.245 0.880
H4 -0.951 -1.245 0.880

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07141.34992.6422
S22.07142.64221.3499
H31.34992.64223.1339
H42.64221.34993.1339

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.933 S2 S1 H3 98.933
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.102      
2 S -0.102      
3 H 0.102      
4 H 0.102      


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 1.559 1.559
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.828 2.533 0.000
y 2.533 -26.454 0.000
z 0.000 0.000 -27.133
Traceless
 xyz
x -0.035 2.533 0.000
y 2.533 0.527 0.000
z 0.000 0.000 -0.492
Polar
3z2-r2-0.984
x2-y2-0.374
xy2.533
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.597 0.485 0.000
y 0.485 6.551 0.000
z 0.000 0.000 3.526


<r2> (average value of r2) Å2
<r2> 57.621
(<r2>)1/2 7.591