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

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-90.049784
Energy at 298.15K-90.050882
HF Energy-90.049784
Nuclear repulsion energy22.805728
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/LANL2DZ
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' 3995 3595 97.94 103.42 0.30 0.46
2 A' 1344 1210 26.74 5.28 0.69 0.82
3 A' 751 675 1.45 56.69 0.32 0.49

Unscaled Zero Point Vibrational Energy (zpe) 3044.7 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 2739.9 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/LANL2DZ
ABC
21.47895 0.46047 0.45081

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.035 1.146 0.000
H2 -0.884 1.423 0.000
Cl3 0.035 -0.623 0.000

Atom - Atom Distances (Å)
  O1 H2 Cl3
O10.96061.7694
H20.96062.2436
Cl31.76942.2436

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 106.754
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.595      
2 H 0.431      
3 Cl 0.164      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.254 0.206 0.000 2.263
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.255 -3.308 0.000
y -3.308 -16.332 0.000
z 0.000 0.000 -18.410
Traceless
 xyz
x 1.116 -3.308 0.000
y -3.308 1.001 0.000
z 0.000 0.000 -2.117
Polar
3z2-r2-4.234
x2-y20.077
xy-3.308
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.829 -0.289 0.000
y -0.289 4.088 0.000
z 0.000 0.000 0.243


<r2> (average value of r2) Å2
<r2> 26.674
(<r2>)1/2 5.165