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: B3LYP/6-31G(2df,p)

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 B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-100.433189
Energy at 298.15K-100.433177
HF Energy-100.433189
Nuclear repulsion energy5.179807
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 B3LYP/6-31G(2df,p)
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 4115 3971 61.24      

Unscaled Zero Point Vibrational Energy (zpe) 2057.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 1985.4 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 B3LYP/6-31G(2df,p)
B
20.83528

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

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 -0.828

Atom - Atom Distances (Å)
  F1 H2
F10.9195
H20.9195

picture of Hydrogen fluoride state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.327      
2 H 0.327      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.729 1.729
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -5.366 0.000 0.000
y 0.000 -5.366 0.000
z 0.000 0.000 -3.502
Traceless
 xyz
x -0.932 0.000 0.000
y 0.000 -0.932 0.000
z 0.000 0.000 1.864
Polar
3z2-r23.727
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.458 0.000 0.000
y 0.000 0.458 0.000
z 0.000 0.000 0.774


<r2> (average value of r2) Å2
<r2> 3.724
(<r2>)1/2 1.930