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=FULL/TZVP

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=FULL/TZVP
 hartrees
Energy at 0K-460.672606
Energy at 298.15K 
HF Energy-460.615306
Nuclear repulsion energy7.008428
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=FULL/TZVP
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 2980 2843 29.22 96.78 0.42 0.59

Unscaled Zero Point Vibrational Energy (zpe) 1489.9 cm-1
Scaled (by 0.9542) Zero Point Vibrational Energy (zpe) 1421.6 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=FULL/TZVP
B
10.44461

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 0.071
H2 0.000 0.000 -1.212

Atom - Atom Distances (Å)
  Cl1 H2
Cl11.2836
H21.2836

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