return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/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 wB97X-D/6-31G**
 hartrees
Energy at 0K-535.907118
Energy at 298.15K-535.908223
HF Energy-535.907118
Nuclear repulsion energy50.901813
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 wB97X-D/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' 3863 3863 69.45 61.35 0.27 0.43
2 A' 1302 1302 49.22 3.48 0.70 0.83
3 A' 771 771 2.69 19.07 0.31 0.47

Unscaled Zero Point Vibrational Energy (zpe) 2967.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2967.9 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 wB97X-D/6-31G**
ABC
20.41683 0.50031 0.48834

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.036 1.104 0.000
H2 -0.905 1.322 0.000
Cl3 0.036 -0.597 0.000

Atom - Atom Distances (Å)
  O1 H2 Cl3
O10.96671.7008
H20.96672.1380
Cl31.70082.1380

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 103.072
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.532      
2 H 0.366      
3 Cl 0.166      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.738 0.248 0.000 1.755
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.700 -2.621 0.000
y -2.621 -16.251 0.000
z 0.000 0.000 -18.885
Traceless
 xyz
x 0.868 -2.621 0.000
y -2.621 1.541 0.000
z 0.000 0.000 -2.409
Polar
3z2-r2-4.818
x2-y2-0.449
xy-2.621
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.601 -0.220 0.000
y -0.220 3.115 0.000
z 0.000 0.000 1.228


<r2> (average value of r2) Å2
<r2> 29.199
(<r2>)1/2 5.404