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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-190.013774
Energy at 298.15K-190.017333
HF Energy-190.013774
Nuclear repulsion energy74.180122
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' 3109 3066 9.83      
2 A' 2992 2951 12.09      
3 A' 1442 1422 7.02      
4 A' 1388 1369 1.11      
5 A' 1172 1156 3.23      
6 A' 1112 1097 1.20      
7 A' 870 858 5.05      
8 A' 475 468 6.46      
9 A" 3093 3051 12.32      
10 A" 1430 1410 7.96      
11 A" 1078 1063 0.07      
12 A" 132 130 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 9145.6 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 9020.3 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 PBEPBE/6-31G**
ABC
1.70671 0.37277 0.32538

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 -0.479 0.000
O2 0.000 0.576 0.000
O3 -1.224 0.052 0.000
H4 1.978 0.038 0.000
H5 0.885 -1.095 0.904
H6 0.885 -1.095 -0.904

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.45872.29421.09951.10031.1003
O21.45871.33172.04972.09532.0953
O32.29421.33173.20232.56532.5653
H41.09952.04973.20231.81501.8150
H51.10032.09532.56531.81501.8070
H61.10032.09532.56531.81501.8070

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 110.528 O2 C1 H4 105.637
O2 C1 H5 109.131 O2 C1 H6 109.131
H4 C1 H5 111.196 H4 C1 H6 111.196
H5 C1 H6 110.406
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 -0.142      
2 O -0.133      
3 O -0.180      
4 H 0.144      
5 H 0.156      
6 H 0.156      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.438 -1.096 0.000 2.673
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.351 -0.377 0.000
y -0.377 -17.619 0.000
z 0.000 0.000 -16.733
Traceless
 xyz
x -0.175 -0.377 0.000
y -0.377 -0.577 0.000
z 0.000 0.000 0.752
Polar
3z2-r21.504
x2-y20.268
xy-0.377
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.232 -0.053 0.000
y -0.053 2.500 0.000
z 0.000 0.000 2.320


<r2> (average value of r2) Å2
<r2> 42.409
(<r2>)1/2 6.512