return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for HCl (Hydrogen chloride)

using model chemistry: MP3/SDD

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 MP3/SDD
 hartrees
Energy at 0K-460.091807
Energy at 298.15K-460.091863
HF Energy-460.029066
Nuclear repulsion energy6.823590
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 MP3/SDD
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 2667 2667 1.54      

Unscaled Zero Point Vibrational Energy (zpe) 1333.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1333.7 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 MP3/SDD
B
9.90095

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/SDD

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 0.073
H2 0.000 0.000 -1.245

Atom - Atom Distances (Å)
  Cl1 H2
Cl11.3184
H21.3184

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