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All results from a given calculation for CH3OO (methylperoxy radical)

using model chemistry: PBEPBE/6-31G*

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/6-31G*
 hartrees
Energy at 0K-190.010030
Energy at 298.15K-190.013602
HF Energy-190.010030
Nuclear repulsion energy74.191603
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/6-31G*
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' 3112 3068 10.71      
2 A' 3000 2957 12.44      
3 A' 1458 1437 7.10      
4 A' 1401 1381 1.09      
5 A' 1178 1162 3.17      
6 A' 1115 1100 1.31      
7 A' 875 862 5.40      
8 A' 477 470 6.50      
9 A" 3098 3053 13.18      
10 A" 1447 1426 7.98      
11 A" 1087 1072 0.08      
12 A" 139 137 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 9193.0 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 9061.6 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 PBEPBE/6-31G*
ABC
1.70574 0.37308 0.32564

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.008 -0.478 0.000
O2 0.000 0.576 0.000
O3 -1.224 0.051 0.000
H4 1.977 0.042 0.000
H5 0.884 -1.093 0.905
H6 0.884 -1.093 -0.905

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.45802.29341.10031.10101.1010
O21.45801.33172.04812.09442.0944
O32.29341.33173.20132.56372.5637
H41.10032.04813.20131.81721.8172
H51.10102.09442.56371.81721.8093
H61.10102.09442.56371.81721.8093

picture of methylperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 O3 110.509 O2 C1 H4 105.519
O2 C1 H5 109.059 O2 C1 H6 109.059
H4 C1 H5 111.273 H4 C1 H6 111.273
H5 C1 H6 110.496
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.265      
2 O -0.124      
3 O -0.180      
4 H 0.183      
5 H 0.193      
6 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.440 -1.091 0.000 2.673
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.360 -0.369 0.000
y -0.369 -17.630 0.000
z 0.000 0.000 -16.733
Traceless
 xyz
x -0.179 -0.369 0.000
y -0.369 -0.583 0.000
z 0.000 0.000 0.761
Polar
3z2-r21.523
x2-y20.269
xy-0.369
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.189 -0.042 0.000
y -0.042 2.463 0.000
z 0.000 0.000 2.288


<r2> (average value of r2) Å2
<r2> 42.391
(<r2>)1/2 6.511