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: QCISD/aug-cc-pV(T+d)Z

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 QCISD/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-460.337028
Energy at 298.15K 
HF Energy-460.108659
Nuclear repulsion energy7.061234
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 QCISD/aug-cc-pV(T+d)Z
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 3020 3020 37.21      

Unscaled Zero Point Vibrational Energy (zpe) 1510.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1510.0 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 QCISD/aug-cc-pV(T+d)Z
B
10.60259

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pV(T+d)Z

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 -1.203

Atom - Atom Distances (Å)
  Cl1 H2
Cl11.2740
H21.2740

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