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All results from a given calculation for H2S2 (Disulfane)

using model chemistry: B3LYP/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-797.658544
Energy at 298.15K-797.660610
HF Energy-797.658544
Nuclear repulsion energy84.005796
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/aug-cc-pVTZ
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 2628 2543 0.59      
2 A 884 856 0.07      
3 A 495 479 0.00      
4 A 421 407 12.29      
5 B 2631 2545 2.92      
6 B 884 855 5.81      

Unscaled Zero Point Vibrational Energy (zpe) 3971.7 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 3842.6 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/aug-cc-pVTZ
ABC
4.87423 0.22604 0.22594

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.045 -0.056
S2 0.000 -1.045 -0.056
H3 0.936 1.235 0.897
H4 -0.936 -1.235 0.897

Atom - Atom Distances (Å)
  S1 S2 H3 H4
S12.08961.34962.6423
S22.08962.64231.3496
H31.34962.64233.0990
H42.64231.34963.0990

picture of Disulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.094 S2 S1 H3 98.094
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.120      
2 S -0.120      
3 H 0.120      
4 H 0.120      


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 1.114 1.114
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.076 2.000 0.000
y 2.000 -26.280 0.000
z 0.000 0.000 -27.309
Traceless
 xyz
x -0.282 2.000 0.000
y 2.000 0.913 0.000
z 0.000 0.000 -0.631
Polar
3z2-r2-1.262
x2-y2-0.796
xy2.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.821 0.361 0.000
y 0.361 8.616 0.000
z 0.000 0.000 5.789


<r2> (average value of r2) Å2
<r2> 58.202
(<r2>)1/2 7.629