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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: HF/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-796.270857
Energy at 298.15K-796.273042
HF Energy-796.270857
Nuclear repulsion energy85.295957
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/aug-cc-pVQZ
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 2836 2576 0.09      
2 A 984 894 1.16      
3 A 562 511 0.01      
4 A 453 411 15.59      
5 B 2836 2577 1.78      
6 B 988 897 6.47      

Unscaled Zero Point Vibrational Energy (zpe) 4329.3 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 3933.2 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/aug-cc-pVQZ
ABC
5.04479 0.23299 0.23292

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.029 -0.055
S2 0.000 -1.029 -0.055
H3 0.928 1.233 0.873
H4 -0.928 -1.233 0.873

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.05781.32842.6156
S22.05782.61561.3284
H31.32842.61563.0877
H42.61561.32843.0877

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.860 S2 S1 H3 98.860
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.119      
2 S -0.119      
3 H 0.119      
4 H 0.119      


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 1.251 1.251
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.133 2.269 0.000
y 2.269 -26.452 0.000
z 0.000 0.000 -27.275
Traceless
 xyz
x -0.270 2.269 0.000
y 2.269 0.752 0.000
z 0.000 0.000 -0.482
Polar
3z2-r2-0.964
x2-y2-0.681
xy2.269
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.481 0.325 0.000
y 0.325 8.124 0.000
z 0.000 0.000 5.453


<r2> (average value of r2) Å2
<r2> 57.028
(<r2>)1/2 7.552