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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B3LYP/TZVP

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/TZVP
 hartrees
Energy at 0K-797.629390
Energy at 298.15K-797.631444
HF Energy-797.629390
Nuclear repulsion energy83.257548
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/TZVP
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 2617 2527 5.92      
2 A 880 850 0.12      
3 A 487 470 0.14      
4 A 421 406 18.25      
5 B 2619 2528 9.30      
6 B 879 848 6.26      

Unscaled Zero Point Vibrational Energy (zpe) 3950.9 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 3814.2 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/TZVP
ABC
4.82725 0.22165 0.22160

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.055 -0.055
S2 0.000 -1.055 -0.055
H3 0.954 1.246 0.887
H4 -0.954 -1.246 0.887

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.10911.35482.6629
S22.10912.66291.3548
H31.35482.66293.1383
H42.66291.35483.1383

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.118 S2 S1 H3 98.118
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.104      
2 S -0.104      
3 H 0.104      
4 H 0.104      


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 1.444 1.444
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.996 2.358 0.000
y 2.358 -26.393 0.000
z 0.000 0.000 -27.261
Traceless
 xyz
x -0.169 2.358 0.000
y 2.358 0.736 0.000
z 0.000 0.000 -0.567
Polar
3z2-r2-1.134
x2-y2-0.603
xy2.358
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.750 0.429 0.000
y 0.429 6.960 0.000
z 0.000 0.000 3.708


<r2> (average value of r2) Å2
<r2> 58.975
(<r2>)1/2 7.679