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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: HF/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/cc-pVDZ
 hartrees
Energy at 0K-796.223824
Energy at 298.15K-796.225983
HF Energy-796.223824
Nuclear repulsion energy84.289982
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 HF/cc-pVDZ
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 2840 2579 1.92      
2 A 970 881 0.78      
3 A 551 500 0.06      
4 A 438 398 20.04      
5 B 2841 2580 5.54      
6 B 975 885 2.88      

Unscaled Zero Point Vibrational Energy (zpe) 4307.8 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 3911.5 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 HF/cc-pVDZ
ABC
4.93528 0.22732 0.22727

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.041 -0.055
S2 0.000 -1.041 -0.055
H3 0.939 1.235 0.882
H4 -0.939 -1.235 0.882

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.08221.34072.6345
S22.08222.63451.3407
H31.34072.63453.1029
H42.63451.34073.1029

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.315 S2 S1 H3 98.315
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.100      
2 S -0.100      
3 H 0.100      
4 H 0.100      


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 1.470 1.470
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.950 2.446 0.000
y 2.446 -26.337 0.000
z 0.000 0.000 -27.139
Traceless
 xyz
x -0.212 2.446 0.000
y 2.446 0.707 0.000
z 0.000 0.000 -0.495
Polar
3z2-r2-0.991
x2-y2-0.613
xy2.446
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.465 0.543 0.000
y 0.543 6.583 0.000
z 0.000 0.000 3.420


<r2> (average value of r2) Å2
<r2> 57.895
(<r2>)1/2 7.609