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

using model chemistry: PBEPBEultrafine/6-311G*

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/6-311G*
 hartrees
Energy at 0K-535.713280
Energy at 298.15K-535.714342
HF Energy-535.713280
Nuclear repulsion energy49.625072
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/6-311G*
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' 3597 3559 35.44 58.37 0.33 0.49
2 A' 1262 1249 44.34 6.01 0.72 0.84
3 A' 676 669 1.35 15.70 0.30 0.46

Unscaled Zero Point Vibrational Energy (zpe) 2767.2 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 2738.4 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/6-311G*
ABC
19.83101 0.47424 0.46317

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.037 1.134 0.000
H2 -0.918 1.351 0.000
Cl3 0.037 -0.613 0.000

Atom - Atom Distances (Å)
  O1 H2 Cl3
O10.97941.7475
H20.97942.1842
Cl31.74752.1842

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 102.789
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.535      
2 H 0.420      
3 Cl 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.861 0.281 0.000 1.882
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.271 -2.726 0.000
y -2.726 -16.584 0.000
z 0.000 0.000 -19.537
Traceless
 xyz
x 0.790 -2.726 0.000
y -2.726 1.819 0.000
z 0.000 0.000 -2.609
Polar
3z2-r2-5.219
x2-y2-0.686
xy-2.726
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.530 -0.237 0.000
y -0.237 3.320 0.000
z 0.000 0.000 1.075


<r2> (average value of r2) Å2
<r2> 30.503
(<r2>)1/2 5.523