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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B2PLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/6-31G(2df,p)
 hartrees
Energy at 0K-797.292976
Energy at 298.15K-797.295091
HF Energy-797.182985
Nuclear repulsion energy84.648922
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 B2PLYP/6-31G(2df,p)
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 2682 2561 0.85      
2 A 904 863 0.34      
3 A 525 501 0.05      
4 A 447 427 15.21      
5 B 2684 2563 2.65      
6 B 906 866 8.37      

Unscaled Zero Point Vibrational Energy (zpe) 4074.1 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 3890.8 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 B2PLYP/6-31G(2df,p)
ABC
4.91038 0.22984 0.22979

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.035 -0.055
S2 0.000 -1.035 -0.055
H3 0.946 1.234 0.880
H4 -0.946 -1.234 0.880

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.06981.34502.6301
S22.06982.63011.3450
H31.34502.63013.1099
H42.63011.34503.1099

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.514 S2 S1 H3 98.514
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.181      
2 S -0.181      
3 H 0.181      
4 H 0.181      


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 1.301 1.301
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.750 2.230 0.000
y 2.230 -26.077 0.000
z 0.000 0.000 -26.972
Traceless
 xyz
x -0.225 2.230 0.000
y 2.230 0.783 0.000
z 0.000 0.000 -0.559
Polar
3z2-r2-1.118
x2-y2-0.672
xy2.230
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.236 0.390 0.000
y 0.390 7.068 0.000
z 0.000 0.000 4.191


<r2> (average value of r2) Å2
<r2> 57.368
(<r2>)1/2 7.574