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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: PBE1PBE/aug-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 PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-797.342481
Energy at 298.15K-797.344599
HF Energy-797.342481
Nuclear repulsion energy84.976051
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 PBE1PBE/aug-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 2664 2562 0.12      
2 A 899 864 0.13      
3 A 532 511 0.00      
4 A 440 423 13.44      
5 B 2666 2564 2.39      
6 B 898 863 5.69      

Unscaled Zero Point Vibrational Energy (zpe) 4049.6 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 3893.7 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 PBE1PBE/aug-cc-pVTZ
ABC
4.87932 0.23219 0.23208

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.030 -0.055
S2 0.000 -1.030 -0.055
H3 0.951 1.226 0.881
H4 -0.951 -1.226 0.881

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.05911.34882.6209
S22.05912.62091.3488
H31.34882.62093.1042
H42.62091.34883.1042

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.385 S2 S1 H3 98.385
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.145      
2 S -0.145      
3 H 0.145      
4 H 0.145      


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 1.165 1.165
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.815 2.067 0.000
y 2.067 -26.093 0.000
z 0.000 0.000 -27.059
Traceless
 xyz
x -0.239 2.067 0.000
y 2.067 0.844 0.000
z 0.000 0.000 -0.605
Polar
3z2-r2-1.209
x2-y2-0.722
xy2.067
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.702 0.365 0.000
y 0.365 8.366 0.000
z 0.000 0.000 5.666


<r2> (average value of r2) Å2
<r2> 57.034
(<r2>)1/2 7.552