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All results from a given calculation for HO2 (Hydroperoxy radical)

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-150.863778
Energy at 298.15K-150.864885
HF Energy-150.863778
Nuclear repulsion energy32.378118
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 mPW1PW91/6-31G**
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' 3659 3482 17.11      
2 A' 1461 1391 38.24      
3 A' 1233 1173 35.08      

Unscaled Zero Point Vibrational Energy (zpe) 3176.7 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 3022.7 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 mPW1PW91/6-31G**
ABC
20.73748 1.14456 1.08469

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.055 -0.604 0.000
O2 0.055 0.712 0.000
H3 -0.885 -0.863 0.000

Atom - Atom Distances (Å)
  O1 O2 H3
O11.31630.9753
O21.31631.8343
H30.97531.8343

picture of Hydroperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 O1 H3 105.378
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.203      
2 O -0.158      
3 H 0.360      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.794 -1.393 0.000 2.272
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.588 1.660 0.000
y 1.660 -10.582 0.000
z 0.000 0.000 -10.654
Traceless
 xyz
x 1.030 1.660 0.000
y 1.660 -0.461 0.000
z 0.000 0.000 -0.569
Polar
3z2-r2-1.138
x2-y20.994
xy1.660
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.066 0.264 0.000
y 0.264 2.063 0.000
z 0.000 0.000 0.698


<r2> (average value of r2) Å2
<r2> 14.971
(<r2>)1/2 3.869