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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-533.359373
Energy at 298.15K-533.360452
HF Energy-533.359373
Nuclear repulsion energy49.430605
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 B3PW91/3-21G*
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' 3425 3286 19.76      
2 A' 1285 1233 47.55      
3 A' 710 681 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 2710.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 2600.1 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 B3PW91/3-21G*
ABC
18.89607 0.47260 0.46106

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.038 1.136 0.000
H2 -0.941 1.354 0.000
Cl3 0.038 -0.614 0.000

Atom - Atom Distances (Å)
  O1 H2 Cl3
O11.00251.7504
H21.00252.1980
Cl31.75042.1980

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 102.544
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.475      
2 H 0.386      
3 Cl 0.089      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.903 0.379 0.000 1.940
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.700 -2.783 0.000
y -2.783 -16.308 0.000
z 0.000 0.000 -18.807
Traceless
 xyz
x 0.857 -2.783 0.000
y -2.783 1.446 0.000
z 0.000 0.000 -2.303
Polar
3z2-r2-4.607
x2-y2-0.392
xy-2.783
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.497 -0.314 0.000
y -0.314 3.118 0.000
z 0.000 0.000 0.902


<r2> (average value of r2) Å2
<r2> 30.283
(<r2>)1/2 5.503