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

using model chemistry: MP4=FULL/CEP-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=FULL/CEP-31G
 hartrees
Energy at 0K-47.743468
Energy at 298.15K-47.743395
HF Energy-47.497658
Nuclear repulsion energy16.992071
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=FULL/CEP-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 735 735        

Unscaled Zero Point Vibrational Energy (zpe) 367.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 367.2 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=FULL/CEP-31G
B
0.76260

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.000 0.000 0.763
F2 0.000 0.000 -0.763

Atom - Atom Distances (Å)
  F1 F2
F11.5255
F21.5255

picture of Fluorine diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability