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All results from a given calculation for HOCl (hypochlorous acid)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-534.841967
Energy at 298.15K-534.843103
HF Energy-534.841967
Nuclear repulsion energy51.770659
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 HF/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 4078 3664 112.61 65.87 0.29 0.45
2 A' 1423 1279 47.92 2.19 0.75 0.86
3 A' 854 767 2.97 35.83 0.32 0.49

Unscaled Zero Point Vibrational Energy (zpe) 3177.6 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 2855.1 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 HF/6-31G*
ABC
21.53173 0.51734 0.50520

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.035 1.082 0.000
H2 -0.883 1.331 0.000
Cl3 0.035 -0.588 0.000

Atom - Atom Distances (Å)
  O1 H2 Cl3
O10.95121.6702
H20.95122.1268
Cl31.67022.1268

picture of hypochlorous acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 Cl3 105.127
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.690      
2 H 0.480      
3 Cl 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.816 0.183 0.000 1.825
CHELPG -1.876 0.248 0.000 1.892
AIM 0.322 0.622 0.000 0.701
ESP -1.886 0.254 0.000 1.903


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.876 -2.777 0.000
y -2.777 -16.414 0.000
z 0.000 0.000 -19.080
Traceless
 xyz
x 0.871 -2.777 0.000
y -2.777 1.564 0.000
z 0.000 0.000 -2.435
Polar
3z2-r2-4.870
x2-y2-0.462
xy-2.777
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.511 -0.221 0.000
y -0.221 3.163 0.000
z 0.000 0.000 1.194


<r2> (average value of r2) Å2
<r2> 28.730
(<r2>)1/2 5.360