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 HCl (Hydrogen chloride)

using model chemistry: PM3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K-0.032620
HF Energy-0.032620
Nuclear repulsion energy14.678816
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 PM3
Rotational Constants (cm-1) from geometry optimized at PM3
B
10.71435

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 0.070
H2 0.000 0.000 -1.197

Atom - Atom Distances (Å)
  Cl1 H2
Cl11.2673
H21.2673

picture of Hydrogen chloride state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability