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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B97D3/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B97D3/3-21G
 hartrees
Energy at 0K-793.643123
Energy at 298.15K-793.644949
HF Energy-793.643123
Nuclear repulsion energy 
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 B97D3/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 2404 2363 29.01      
2 A 801 787 0.21      
3 A 404 397 0.25      
4 A 325 320 29.95      
5 B 2406 2365 35.99      
6 B 784 770 0.64      

Unscaled Zero Point Vibrational Energy (zpe) 3561.8 cm-1
Scaled (by 0.983) Zero Point Vibrational Energy (zpe) 3501.3 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 B97D3/3-21G
ABC
4.56405 0.18652 0.18593

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.155 -0.055
S2 0.000 -1.155 -0.055
H3 1.015 1.285 0.877
H4 -1.015 -1.285 0.877

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.30951.38402.8020
S22.30952.80201.3840
H31.38402.80203.2747
H42.80201.38403.2747

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 95.403 S2 S1 H3 95.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.110      
2 S -0.110      
3 H 0.110      
4 H 0.110      


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 1.788 1.788
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.223 2.826 0.000
y 2.826 -26.948 0.000
z 0.000 0.000 -28.018
Traceless
 xyz
x 0.260 2.826 0.000
y 2.826 0.672 0.000
z 0.000 0.000 -0.932
Polar
3z2-r2-1.865
x2-y2-0.275
xy2.826
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.230 0.554 0.000
y 0.554 7.749 0.000
z 0.000 0.000 2.915


<r2> (average value of r2) Å2
<r2> 66.781
(<r2>)1/2 8.172