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

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-149.919544
Energy at 298.15K-149.920623
HF Energy-149.919544
Nuclear repulsion energy29.961774
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 PBEPBE/3-21G
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' 3117 3089 2.64      
2 A' 1285 1274 27.78      
3 A' 1054 1045 21.28      

Unscaled Zero Point Vibrational Energy (zpe) 2728.3 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 2703.5 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 PBEPBE/3-21G
ABC
18.27996 0.97240 0.92329

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.059 -0.660 0.000
O2 0.059 0.771 0.000
H3 -0.936 -0.888 0.000

Atom - Atom Distances (Å)
  O1 O2 H3
O11.43161.0203
O21.43161.9346
H31.02031.9346

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 102.899
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.251      
2 O -0.125      
3 H 0.376      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.936 -1.253 0.000 2.307
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.379 1.692 0.000
y 1.692 -10.406 0.000
z 0.000 0.000 -10.452
Traceless
 xyz
x 1.050 1.692 0.000
y 1.692 -0.491 0.000
z 0.000 0.000 -0.559
Polar
3z2-r2-1.119
x2-y21.027
xy1.692
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.890 0.351 0.000
y 0.351 1.996 0.000
z 0.000 0.000 0.340


<r2> (average value of r2) Å2
<r2> 16.279
(<r2>)1/2 4.035