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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: PBEPBEultrafine/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-797.275618
Energy at 298.15K-797.277690
HF Energy-797.275618
Nuclear repulsion energy84.186628
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-pVTZ
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 2549 2532 2.43      
2 A 858 852 0.01      
3 A 501 497 0.12      
4 A 440 437 12.86      
5 B 2553 2535 7.70      
6 B 858 852 6.28      

Unscaled Zero Point Vibrational Energy (zpe) 3879.2 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 3852.4 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-pVTZ
ABC
4.78621 0.22790 0.22783

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.039 -0.056
S2 0.000 -1.039 -0.056
H3 0.959 1.238 0.891
H4 -0.959 -1.238 0.891

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07831.36182.6457
S22.07832.64571.3618
H31.36182.64573.1317
H42.64571.36183.1317

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.389 S2 S1 H3 98.389
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.110      
2 S -0.110      
3 H 0.110      
4 H 0.110      


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 1.196 1.196
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.761 2.021 0.000
y 2.021 -25.876 0.000
z 0.000 0.000 -26.995
Traceless
 xyz
x -0.326 2.021 0.000
y 2.021 1.002 0.000
z 0.000 0.000 -0.677
Polar
3z2-r2-1.353
x2-y2-0.885
xy2.021
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.530 0.437 0.000
y 0.437 7.621 0.000
z 0.000 0.000 4.486


<r2> (average value of r2) Å2
<r2> 57.723
(<r2>)1/2 7.598