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: B2PLYP/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 B2PLYP/SDD
 hartrees
Energy at 0K-460.573706
Energy at 298.15K-460.573762
HF Energy-460.555304
Nuclear repulsion energy6.842758
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 B2PLYP/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 2699 2699 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 1349.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1349.2 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 B2PLYP/SDD
B
9.95665

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/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 -1.242

Atom - Atom Distances (Å)
  Cl1 H2
Cl11.3147
H21.3147

picture of Hydrogen chloride state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl -0.208      
2 H 0.208      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.339 0.000 0.000
y 0.000 0.339 0.000
z 0.000 0.000 1.964


<r2> (average value of r2) Å2
<r2> 9.546
(<r2>)1/2 3.090