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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: PBEPBEultrafine/cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBEultrafine/cc-pCVTZ
 hartrees
Energy at 0K-797.286749
Energy at 298.15K-797.288840
HF Energy-797.286749
Nuclear repulsion energy84.576650
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 PBEPBEultrafine/cc-pCVTZ
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 2548 2548 2.46      
2 A 862 862 0.00      
3 A 504 504 0.16      
4 A 450 450 12.28      
5 B 2552 2552 8.06      
6 B 864 864 7.59      

Unscaled Zero Point Vibrational Energy (zpe) 3889.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3889.4 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 PBEPBEultrafine/cc-pCVTZ
ABC
4.80937 0.23026 0.23019

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.033 -0.056
S2 0.000 -1.033 -0.056
H3 0.957 1.239 0.889
H4 -0.957 -1.239 0.889

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.06691.35992.6406
S22.06692.64061.3599
H31.35992.64063.1315
H42.64061.35993.1315

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.709 S2 S1 H3 98.709
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.132      
2 S -0.132      
3 H 0.132      
4 H 0.132      


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 1.174 1.174
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.706 2.001 0.000
y 2.001 -25.827 0.000
z 0.000 0.000 -26.934
Traceless
 xyz
x -0.326 2.001 0.000
y 2.001 0.993 0.000
z 0.000 0.000 -0.668
Polar
3z2-r2-1.335
x2-y2-0.879
xy2.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.561 0.446 0.000
y 0.446 7.609 0.000
z 0.000 0.000 4.515


<r2> (average value of r2) Å2
<r2> 57.302
(<r2>)1/2 7.570