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All results from a given calculation for HOClO (Chlorous acid)

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C1 1A
1 2 yes CS 1A'

Conformer 1 (C1)

Jump to S1C2
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-46.344192
Energy at 298.15K 
HF Energy-46.344192
Nuclear repulsion energy36.644490
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 HF/CEP-31G
Rotational Constants (cm-1) from geometry optimized at HF/CEP-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.074 -0.650 0.000
O2 1.280 0.640 -0.001
O3 -1.532 0.559 -0.000
H4 0.764 1.460 0.004

Atom - Atom Distances (Å)
  Cl1 O2 O3 H4
Cl11.76622.01002.2205
O21.76622.81290.9695
O32.01002.81292.4661
H42.22050.96952.4661

picture of Chlorous acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 O2 H4 104.744 O2 Cl1 O3 96.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl 0.419      
2 O -0.543      
3 O -0.308      
4 H 0.431      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.553 0.609 0.013 0.823
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.500 1.180 0.010
y 1.180 -18.476 0.018
z 0.010 0.018 -24.081
Traceless
 xyz
x -7.221 1.180 0.010
y 1.180 7.815 0.018
z 0.010 0.018 -0.593
Polar
3z2-r2-1.186
x2-y2-10.024
xy1.180
xz0.010
yz0.018


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


<r2> (average value of r2) Å2
<r2> 48.748
(<r2>)1/2 6.982

Conformer 2 (CS)

Jump to S1C1
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-46.344195
Energy at 298.15K-46.345324
HF Energy-46.344195
Nuclear repulsion energy36.599117
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 HF/CEP-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' 3940 3552 141.62      
2 A' 1381 1245 25.35      
3 A' 769 693 2.16      
4 A' 307 277 63.74      
5 A' 173 156 10.92      
6 A" 231 208 291.55      

Unscaled Zero Point Vibrational Energy (zpe) 3400.8 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 3065.4 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 HF/CEP-31G
ABC
0.59618 0.25950 0.18080

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.653 0.000
O2 -1.347 -0.488 0.000
O3 1.464 -0.730 0.000
H4 -0.932 -1.364 0.000

Atom - Atom Distances (Å)
  Cl1 O2 O3 H4
Cl11.76582.01372.2217
O21.76582.82160.9694
O32.01372.82162.4780
H42.22170.96942.4780

picture of Chlorous acid state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 O2 H4 104.863 O2 Cl1 O3 96.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl 0.417      
2 O -0.543      
3 O -0.305      
4 H 0.431      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.616 -0.560 0.000 0.832
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.087 2.292 0.000
y 2.292 -18.875 0.000
z 0.000 0.000 -24.083
Traceless
 xyz
x -6.608 2.292 0.000
y 2.292 7.210 0.000
z 0.000 0.000 -0.602
Polar
3z2-r2-1.205
x2-y2-9.212
xy2.292
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.824 0.075 0.000
y 0.075 3.751 0.000
z 0.000 0.000 0.427


<r2> (average value of r2) Å2
<r2> 48.879
(<r2>)1/2 6.991