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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-32.388779
Energy at 298.15K-32.389868
HF Energy-32.388779
Nuclear repulsion energy18.485456
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 B3LYP/CEP-121G
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' 3456 3368 9.14      
2 A' 1363 1328 31.12      
3 A' 1080 1053 33.24      

Unscaled Zero Point Vibrational Energy (zpe) 2949.5 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 2874.3 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 B3LYP/CEP-121G
ABC
20.22949 1.01703 0.96835

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.056 -0.640 0.000
O2 0.056 0.756 0.000
H3 -0.897 -0.926 0.000

Atom - Atom Distances (Å)
  O1 O2 H3
O11.39560.9946
O21.39561.9326
H30.99461.9326

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 106.702
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.268      
2 O -0.093      
3 H 0.361      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.138 -1.285 0.000 2.495
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.976 1.992 0.000
y 1.992 -11.109 0.000
z 0.000 0.000 -10.972
Traceless
 xyz
x 1.065 1.992 0.000
y 1.992 -0.635 0.000
z 0.000 0.000 -0.430
Polar
3z2-r2-0.861
x2-y21.133
xy1.992
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.027 0.310 0.000
y 0.310 2.500 0.000
z 0.000 0.000 0.637


<r2> (average value of r2) Å2
<r2> 14.256
(<r2>)1/2 3.776