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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B3LYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/cc-pVDZ
 hartrees
Energy at 0K-797.618217
Energy at 298.15K-797.620261
HF Energy-797.618217
Nuclear repulsion energy83.212963
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 B3LYP/cc-pVDZ
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 2612 2534 5.47      
2 A 868 842 0.03      
3 A 491 476 0.15      
4 A 412 400 15.56      
5 B 2615 2536 10.12      
6 B 871 845 4.56      

Unscaled Zero Point Vibrational Energy (zpe) 3934.5 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 3816.4 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 B3LYP/cc-pVDZ
ABC
4.76416 0.22185 0.22181

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.053 -0.056
S2 0.000 -1.053 -0.056
H3 0.964 1.245 0.889
H4 -0.964 -1.245 0.889

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.10701.36352.6653
S22.10702.66531.3635
H31.36352.66533.1488
H42.66531.36353.1488

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.057 S2 S1 H3 98.057
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.096      
2 S -0.096      
3 H 0.096      
4 H 0.096      


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 1.333 1.333
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.582 2.172 0.000
y 2.172 -25.784 0.000
z 0.000 0.000 -26.814
Traceless
 xyz
x -0.283 2.172 0.000
y 2.172 0.913 0.000
z 0.000 0.000 -0.630
Polar
3z2-r2-1.261
x2-y2-0.798
xy2.172
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.600 0.541 0.000
y 0.541 6.706 0.000
z 0.000 0.000 3.533


<r2> (average value of r2) Å2
<r2> 58.661
(<r2>)1/2 7.659