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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: HF/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 HF/cc-pV(T+d)Z
 hartrees
Energy at 0K-796.265505
Energy at 298.15K-796.267701
HF Energy-796.265505
Nuclear repulsion energy85.386929
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 HF/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 2835 2581 0.65      
2 A 985 896 0.92      
3 A 564 513 0.00      
4 A 462 421 16.11      
5 B 2836 2582 3.16      
6 B 990 901 5.71      

Unscaled Zero Point Vibrational Energy (zpe) 4335.8 cm-1
Scaled (by 0.9103) Zero Point Vibrational Energy (zpe) 3946.9 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 HF/cc-pV(T+d)Z
ABC
5.04879 0.23356 0.23345

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/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 0.926 1.233 0.874
H4 -0.926 -1.233 0.874

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.05311.32812.6129
S22.05312.61291.3281
H31.32812.61293.0847
H42.61291.32813.0847

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.950 S2 S1 H3 98.950
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.102      
2 S -0.102      
3 H 0.102      
4 H 0.102      


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 1.304 1.304
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.012 2.291 0.000
y 2.291 -26.235 0.000
z 0.000 0.000 -27.144
Traceless
 xyz
x -0.323 2.291 0.000
y 2.291 0.844 0.000
z 0.000 0.000 -0.520
Polar
3z2-r2-1.041
x2-y2-0.778
xy2.291
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.259 0.396 0.000
y 0.396 7.204 0.000
z 0.000 0.000 4.242


<r2> (average value of r2) Å2
<r2> 56.839
(<r2>)1/2 7.539