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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B1B95/cc-pCVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/cc-pCVDZ
 hartrees
Energy at 0K-797.676102
Energy at 298.15K-797.678228
HF Energy-797.676102
Nuclear repulsion energy84.473634
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 B1B95/cc-pCVDZ
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 2658 2658 2.62      
2 A 900 900 0.08      
3 A 522 522 0.19      
4 A 448 448 16.84      
5 B 2660 2660 7.21      
6 B 902 902 5.22      

Unscaled Zero Point Vibrational Energy (zpe) 4044.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4044.4 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 B1B95/cc-pCVDZ
ABC
4.81926 0.22939 0.22932

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pCVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.036 -0.055
S2 0.000 -1.036 -0.055
H3 0.955 1.226 0.888
H4 -0.955 -1.226 0.888

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.07221.35582.6305
S22.07222.63051.3558
H31.35582.63053.1086
H42.63051.35583.1086

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.055 S2 S1 H3 98.055
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pCVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.112      
2 S -0.112      
3 H 0.112      
4 H 0.112      


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 1.378 1.378
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.444 2.214 0.000
y 2.214 -25.759 0.000
z 0.000 0.000 -26.695
Traceless
 xyz
x -0.217 2.214 0.000
y 2.214 0.810 0.000
z 0.000 0.000 -0.594
Polar
3z2-r2-1.188
x2-y2-0.685
xy2.214
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.571 0.520 0.000
y 0.520 6.527 0.000
z 0.000 0.000 3.503


<r2> (average value of r2) Å2
<r2> 57.283
(<r2>)1/2 7.569