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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: HSEh1PBE/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-797.311688
Energy at 298.15K-797.313814
HF Energy-797.311688
Nuclear repulsion energy85.143579
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(2df,p)
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 2665 2552 0.89      
2 A 901 863 0.30      
3 A 538 515 0.06      
4 A 451 432 15.44      
5 B 2667 2554 3.77      
6 B 903 865 9.28      

Unscaled Zero Point Vibrational Energy (zpe) 4061.8 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 3890.0 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 HSEh1PBE/6-31G(2df,p)
ABC
4.88811 0.23322 0.23315

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.027 -0.055
S2 0.000 -1.027 -0.055
H3 0.949 1.229 0.881
H4 -0.949 -1.229 0.881

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.05401.34852.6207
S22.05402.62071.3485
H31.34852.62073.1060
H42.62071.34853.1060

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.622 S2 S1 H3 98.622
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.193      
2 S -0.193      
3 H 0.193      
4 H 0.193      


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 1.312 1.312
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.542 2.237 0.000
y 2.237 -25.897 0.000
z 0.000 0.000 -26.779
Traceless
 xyz
x -0.204 2.237 0.000
y 2.237 0.764 0.000
z 0.000 0.000 -0.560
Polar
3z2-r2-1.119
x2-y2-0.645
xy2.237
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.274 0.401 0.000
y 0.401 7.045 0.000
z 0.000 0.000 4.226


<r2> (average value of r2) Å2
<r2> 56.717
(<r2>)1/2 7.531