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 HF (Hydrogen fluoride)

using model chemistry: MP4/6-311+G(3df,2pd)

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 MP4/6-311+G(3df,2pd)
 hartrees
Energy at 0K-100.342333
Energy at 298.15K-100.342322
HF Energy-100.057196
Nuclear repulsion energy5.188588
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 MP4/6-311+G(3df,2pd)
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 4156 4156        

Unscaled Zero Point Vibrational Energy (zpe) 2077.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2077.8 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 MP4/6-311+G(3df,2pd)
B
20.91862

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311+G(3df,2pd)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.000 0.000 0.092
H2 0.000 0.000 -0.826

Atom - Atom Distances (Å)
  F1 H2
F10.9176
H20.9176

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