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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-150.872841
Energy at 298.15K-150.873948
HF Energy-150.872841
Nuclear repulsion energy32.355751
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 mPW1PW91/6-31+G**
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' 3670 3493 32.09      
2 A' 1455 1385 33.60      
3 A' 1225 1166 35.62      

Unscaled Zero Point Vibrational Energy (zpe) 3175.2 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 3022.1 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 mPW1PW91/6-31+G**
ABC
20.83684 1.14221 1.08285

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.055 -0.604 0.000
O2 0.055 0.713 0.000
H3 -0.883 -0.869 0.000

Atom - Atom Distances (Å)
  O1 O2 H3
O11.31710.9752
O21.31711.8394
H30.97521.8394

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 105.759
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.229      
2 O -0.144      
3 H 0.373      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.853 -1.480 0.000 2.371
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.993 1.774 0.000
y 1.774 -11.028 0.000
z 0.000 0.000 -11.075
Traceless
 xyz
x 1.059 1.774 0.000
y 1.774 -0.494 0.000
z 0.000 0.000 -0.565
Polar
3z2-r2-1.130
x2-y21.035
xy1.774
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.320 0.211 0.000
y 0.211 2.418 0.000
z 0.000 0.000 1.045


<r2> (average value of r2) Å2
<r2> 15.253
(<r2>)1/2 3.905