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

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-39.229947
Energy at 298.15K-39.233445
HF Energy-39.229947
Nuclear repulsion energy42.039804
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 B3LYP/CEP-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' 3193 3092 23.73      
2 A' 3062 2965 23.23      
3 A' 1491 1444 13.23      
4 A' 1440 1394 0.64      
5 A' 1174 1137 4.53      
6 A' 1090 1056 14.54      
7 A' 865 838 11.15      
8 A' 445 431 5.09      
9 A" 3182 3082 39.22      
10 A" 1474 1427 11.98      
11 A" 1107 1072 0.00      
12 A" 108 104 1.02      

Unscaled Zero Point Vibrational Energy (zpe) 9315.4 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 9021.1 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 B3LYP/CEP-31G
ABC
1.63695 0.34809 0.30426

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.052 -0.478 0.000
O2 0.000 0.589 0.000
O3 -1.275 0.032 0.000
H4 2.003 0.074 0.000
H5 0.941 -1.089 0.908
H6 0.941 -1.089 -0.908

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.49842.38251.09951.09991.0999
O21.49841.39122.06832.12672.1267
O32.38251.39123.27852.64362.6436
H41.09952.06833.27851.81811.8181
H51.09992.12672.64361.81811.8155
H61.09992.12672.64361.81811.8155

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 111.028 O2 C1 H4 104.482
O2 C1 H5 108.904 O2 C1 H6 108.904
H4 C1 H5 111.513 H4 C1 H6 111.513
H5 C1 H6 111.247
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.371      
2 O -0.107      
3 O -0.142      
4 H 0.210      
5 H 0.205      
6 H 0.205      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.887 -1.674 0.000 3.337
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.303 -0.540 0.000
y -0.540 -18.254 0.000
z 0.000 0.000 -16.731
Traceless
 xyz
x 0.189 -0.540 0.000
y -0.540 -1.237 0.000
z 0.000 0.000 1.048
Polar
3z2-r22.095
x2-y20.951
xy-0.540
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.325 0.138 0.000
y 0.138 2.214 0.000
z 0.000 0.000 1.927


<r2> (average value of r2) Å2
<r2> 37.875
(<r2>)1/2 6.154