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All results from a given calculation for F2 (Fluorine diatomic)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-199.051321
Energy at 298.15K-199.051307
HF Energy-198.670502
Nuclear repulsion energy29.801848
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 MP4/6-31G*
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 920 878        

Unscaled Zero Point Vibrational Energy (zpe) 459.9 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 439.1 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 MP4/6-31G*
B
0.85815

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.000 0.000 0.719
F2 0.000 0.000 -0.719

Atom - Atom Distances (Å)
  F1 F2
F11.4381
F21.4381

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability