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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/3-21G
 hartrees
Energy at 0K-793.635966
Energy at 298.15K-793.637832
HF Energy-793.635966
Nuclear repulsion energy77.560072
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/3-21G
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 2433 2348 21.89      
2 A 821 792 0.53      
3 A 424 409 0.11      
4 A 332 320 31.00      
5 B 2434 2349 27.07      
6 B 804 776 1.04      

Unscaled Zero Point Vibrational Energy (zpe) 3624.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 3496.8 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/3-21G
ABC
4.60876 0.18891 0.18833

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.147 -0.055
S2 0.000 -1.147 -0.055
H3 1.008 1.287 0.875
H4 -1.008 -1.287 0.875

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.29401.37852.7936
S22.29402.79361.3785
H31.37852.79363.2689
H42.79361.37853.2689

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 95.821 S2 S1 H3 95.821
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.105      
2 S -0.105      
3 H 0.105      
4 H 0.105      


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 1.804 1.804
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.406 2.883 0.000
y 2.883 -27.248 0.000
z 0.000 0.000 -28.177
Traceless
 xyz
x 0.307 2.883 0.000
y 2.883 0.544 0.000
z 0.000 0.000 -0.851
Polar
3z2-r2-1.701
x2-y2-0.158
xy2.883
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.201 0.591 0.000
y 0.591 7.794 0.000
z 0.000 0.000 2.892


<r2> (average value of r2) Å2
<r2> 66.318
(<r2>)1/2 8.144