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All results from a given calculation for S2 (Sulfur diatomic)

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3Σg
2 1 yes D*H 1Σ

State 1 (3Σg)

Jump to S2C1
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-795.241757
Energy at 298.15K-795.241669
HF Energy-795.015314
Nuclear repulsion energy70.496355
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 MP2/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 698 654 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 349.2 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 327.0 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 MP2/6-31G**
B
0.28557

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.961
S2 0.000 0.000 -0.961

Atom - Atom Distances (Å)
  S1 S2
S11.9217
S21.9217

picture of Sulfur diatomic state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

State 2 (1Σ)

Jump to S1C1
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-795.208359
Energy at 298.15K-795.208253
Nuclear repulsion energy69.864374
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 MP2/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 660 618 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 329.9 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 309.0 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 MP2/6-31G**
B
0.28047

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.970
S2 0.000 0.000 -0.970

Atom - Atom Distances (Å)
  S1 S2
S11.9390
S21.9390

picture of Sulfur diatomic state 2 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability