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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-535.665101
Energy at 298.15K-535.666174
HF Energy-535.665101
Nuclear repulsion energy49.891715
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 PBEPBEultrafine/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' 3585 3526 41.48 63.59 0.29 0.45
2 A' 1262 1242 46.10 5.24 0.65 0.79
3 A' 705 693 1.82 14.26 0.31 0.47

Unscaled Zero Point Vibrational Energy (zpe) 2775.9 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 2730.1 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 PBEPBEultrafine/6-31G*
ABC
19.40466 0.48066 0.46904

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.037 1.128 0.000
H2 -0.928 1.326 0.000
Cl3 0.037 -0.609 0.000

Atom - Atom Distances (Å)
  O1 H2 Cl3
O10.98511.7369
H20.98512.1624
Cl31.73692.1624

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 101.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.565      
2 H 0.425      
3 Cl 0.140      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.696 0.305 0.000 1.723
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.787 -2.539 0.000
y -2.539 -16.281 0.000
z 0.000 0.000 -19.011
Traceless
 xyz
x 0.859 -2.539 0.000
y -2.539 1.618 0.000
z 0.000 0.000 -2.477
Polar
3z2-r2-4.954
x2-y2-0.507
xy-2.539
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.671 -0.232 0.000
y -0.232 3.191 0.000
z 0.000 0.000 1.231


<r2> (average value of r2) Å2
<r2> 29.979
(<r2>)1/2 5.475