return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CID/cc-pCVDZ

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 CID/cc-pCVDZ
 hartrees
Energy at 0K-199.065639
Energy at 298.15K-199.065647
HF Energy-198.687194
Nuclear repulsion energy30.645193
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 CID/cc-pCVDZ
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 1009 1009 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 504.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 504.6 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 CID/cc-pCVDZ
B
0.90711

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/cc-pCVDZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.000 0.000 0.699
F2 0.000 0.000 -0.699

Atom - Atom Distances (Å)
  F1 F2
F11.3987
F21.3987

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