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

using model chemistry: CCSD(T)/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 CCSD(T)/CEP-31G
 hartrees
Energy at 0K-47.743737
Energy at 298.15K-47.743648
HF Energy-47.496035
Nuclear repulsion energy16.883600
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 CCSD(T)/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 695 655        

Unscaled Zero Point Vibrational Energy (zpe) 347.3 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 327.5 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 CCSD(T)/CEP-31G
B
0.75290

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/CEP-31G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.000 0.000 0.768
F2 0.000 0.000 -0.768

Atom - Atom Distances (Å)
  F1 F2
F11.5353
F21.5353

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