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

using model chemistry: mPW1PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/TZVP
 hartrees
Energy at 0K-535.992323
Energy at 298.15K-535.993424
HF Energy-535.992323
Nuclear repulsion energy50.790389
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 mPW1PW91/TZVP
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' 3830 3654 77.49 53.26 0.27 0.43
2 A' 1244 1187 38.49 4.62 0.73 0.85
3 A' 765 730 4.45 20.22 0.28 0.44

Unscaled Zero Point Vibrational Energy (zpe) 2919.3 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 2785.0 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 mPW1PW91/TZVP
ABC
20.49661 0.49763 0.48583

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.036 1.107 0.000
H2 -0.904 1.324 0.000
Cl3 0.036 -0.599 0.000

Atom - Atom Distances (Å)
  O1 H2 Cl3
O10.96451.7055
H20.96452.1401
Cl31.70552.1401

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 103.014
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.356      
2 H 0.300      
3 Cl 0.056      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.770 0.176 0.000 1.779
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.917 -2.707 0.000
y -2.707 -16.669 0.000
z 0.000 0.000 -19.150
Traceless
 xyz
x 0.992 -2.707 0.000
y -2.707 1.365 0.000
z 0.000 0.000 -2.357
Polar
3z2-r2-4.714
x2-y2-0.248
xy-2.707
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.621 -0.181 0.000
y -0.181 3.396 0.000
z 0.000 0.000 1.287


<r2> (average value of r2) Å2
<r2> 29.475
(<r2>)1/2 5.429