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: B3LYPultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at B3LYPultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-150.936409
Energy at 298.15K-150.937511
HF Energy-150.936409
Nuclear repulsion energy32.115791
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 B3LYPultrafine/aug-cc-pVDZ
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' 3586 3480 23.57      
2 A' 1434 1392 40.26      
3 A' 1164 1129 26.76      

Unscaled Zero Point Vibrational Energy (zpe) 3092.1 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 3000.6 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 B3LYPultrafine/aug-cc-pVDZ
ABC
20.56743 1.12454 1.06624

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.056 -0.610 0.000
O2 0.056 0.718 0.000
H3 -0.889 -0.870 0.000

Atom - Atom Distances (Å)
  O1 O2 H3
O11.32810.9793
O21.32811.8474
H30.97931.8474

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 105.388
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.009      
2 O -0.168      
3 H 0.177      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.685 -1.442 0.000 2.217
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.177 1.655 0.000
y 1.655 -11.054 0.000
z 0.000 0.000 -11.191
Traceless
 xyz
x 0.945 1.655 0.000
y 1.655 -0.369 0.000
z 0.000 0.000 -0.576
Polar
3z2-r2-1.152
x2-y20.877
xy1.655
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.678 0.240 0.000
y 0.240 2.690 0.000
z 0.000 0.000 1.350


<r2> (average value of r2) Å2
<r2> 15.447
(<r2>)1/2 3.930