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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: PBEPBE/aug-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 PBEPBE/aug-cc-pCVTZ
 hartrees
Energy at 0K-797.288541
Energy at 298.15K 
HF Energy-797.288541
Nuclear repulsion energy84.557320
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 PBEPBE/aug-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 2557 2557 0.80      
2 A 864 864 0.00      
3 A 503 503 0.04      
4 A 443 443 11.41      
5 B 2560 2560 5.52      
6 B 865 865 8.19      

Unscaled Zero Point Vibrational Energy (zpe) 3895.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3895.7 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 PBEPBE/aug-cc-pCVTZ
ABC
4.80987 0.23015 0.23004

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.034 -0.055
S2 0.000 -1.034 -0.055
H3 0.959 1.240 0.887
H4 -0.959 -1.240 0.887

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.06751.35982.6410
S22.06752.64101.3598
H31.35982.64103.1343
H42.64101.35983.1343

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.707 S2 S1 H3 98.707
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.146      
2 S -0.146      
3 H 0.146      
4 H 0.146      


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 1.092 1.092
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.980 1.938 0.000
y 1.938 -26.164 0.000
z 0.000 0.000 -27.217
Traceless
 xyz
x -0.290 1.938 0.000
y 1.938 0.935 0.000
z 0.000 0.000 -0.645
Polar
3z2-r2-1.290
x2-y2-0.817
xy1.938
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.928 0.398 0.000
y 0.398 8.717 0.000
z 0.000 0.000 5.891


<r2> (average value of r2) Å2
<r2> 57.509
(<r2>)1/2 7.583