return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B1B95/cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at B1B95/cc-pCVTZ
 hartrees
Energy at 0K-150.919773
Energy at 298.15K 
HF Energy-150.919773
Nuclear repulsion energy32.512760
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 B1B95/cc-pCVTZ
Rotational Constants (cm-1) from geometry optimized at B1B95/cc-pCVTZ
ABC
20.95602 1.15374 1.09353

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pCVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.055 -0.602 0.000
O2 0.055 0.709 0.000
H3 -0.881 -0.860 0.000

Atom - Atom Distances (Å)
  O1 O2 H3
O11.31100.9706
O21.31101.8271
H30.97061.8271

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 105.444
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.089      
2 O -0.160      
3 H 0.249      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.705 -1.424 0.000 2.222
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.719 1.614 0.000
y 1.614 -10.768 0.000
z 0.000 0.000 -10.764
Traceless
 xyz
x 1.048 1.614 0.000
y 1.614 -0.527 0.000
z 0.000 0.000 -0.521
Polar
3z2-r2-1.041
x2-y21.050
xy1.614
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.232 0.234 0.000
y 0.234 2.277 0.000
z 0.000 0.000 0.910


<r2> (average value of r2) Å2
<r2> 14.991
(<r2>)1/2 3.872