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

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-535.973203
Energy at 298.15K-535.974297
HF Energy-535.973203
Nuclear repulsion energy50.649265
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 mPW1PW91/6-311G*
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' 3797 3624 52.76 57.43 0.32 0.48
2 A' 1320 1260 44.68 5.03 0.74 0.85
3 A' 738 705 2.13 19.65 0.30 0.47

Unscaled Zero Point Vibrational Energy (zpe) 2927.9 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 2794.4 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 mPW1PW91/6-311G*
ABC
20.73621 0.49441 0.48290

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.036 1.109 0.000
H2 -0.899 1.345 0.000
Cl3 0.036 -0.601 0.000

Atom - Atom Distances (Å)
  O1 H2 Cl3
O10.96441.7097
H20.96442.1590
Cl31.70972.1590

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 104.184
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.570      
2 H 0.438      
3 Cl 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.902 0.243 0.000 1.918
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.125 -2.802 0.000
y -2.802 -16.517 0.000
z 0.000 0.000 -19.363
Traceless
 xyz
x 0.815 -2.802 0.000
y -2.802 1.727 0.000
z 0.000 0.000 -2.542
Polar
3z2-r2-5.084
x2-y2-0.608
xy-2.802
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.460 -0.228 0.000
y -0.228 3.219 0.000
z 0.000 0.000 1.055


<r2> (average value of r2) Å2
<r2> 29.660
(<r2>)1/2 5.446