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All results from a given calculation for LiF (lithium fluoride)

using model chemistry: QCISD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at QCISD/6-31+G**
 hartrees
Energy at 0K-107.145531
Energy at 298.15K-107.145590
HF Energy-106.946111
Nuclear repulsion energy8.904598
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 QCISD/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 874 827 153.78      

Unscaled Zero Point Vibrational Energy (zpe) 437.1 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 413.3 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 QCISD/6-31+G**
B
1.27792

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.000 0.000 0.401
Li2 0.000 0.000 -1.203

Atom - Atom Distances (Å)
  F1 Li2
F11.6045
Li21.6045

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