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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: wB97X-D/aug-cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at wB97X-D/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-797.621436
Energy at 298.15K-797.623681
HF Energy-797.621436
Nuclear repulsion energy85.215200
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 wB97X-D/aug-cc-pV(T+d)Z
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 2692 2692 0.11      
2 A 906 906 0.24      
3 A 530 530 0.00      
4 A 460 460 13.32      
5 B 2694 2694 2.08      
6 B 907 907 6.36      

Unscaled Zero Point Vibrational Energy (zpe) 4093.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4093.9 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 wB97X-D/aug-cc-pV(T+d)Z
ABC
4.93483 0.23328 0.23323

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pV(T+d)Z

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.027 -0.055
S2 0.000 -1.027 -0.055
H3 0.943 1.227 0.878
H4 -0.943 -1.227 0.878

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.05411.34192.6157
S22.05412.61571.3419
H31.34192.61573.0959
H42.61571.34193.0959

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.577 S2 S1 H3 98.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.192      
2 S -0.192      
3 H 0.192      
4 H 0.192      


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 1.168 1.168
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.738 2.084 0.000
y 2.084 -25.945 0.000
z 0.000 0.000 -26.942
Traceless
 xyz
x -0.295 2.084 0.000
y 2.084 0.895 0.000
z 0.000 0.000 -0.600
Polar
3z2-r2-1.200
x2-y2-0.794
xy2.084
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.716 0.330 0.000
y 0.330 8.338 0.000
z 0.000 0.000 5.686


<r2> (average value of r2) Å2
<r2> 56.762
(<r2>)1/2 7.534