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

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-189.658479
Energy at 298.15K-189.662130
HF Energy-189.201195
Nuclear repulsion energy74.957884
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 MP2/6-31G*
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' 3262 3076 6.50      
2 A' 3137 2959 15.81      
3 A' 1550 1461 11.02      
4 A' 1501 1415 0.07      
5 A' 1273 1200 98.65      
6 A' 1219 1150 0.40      
7 A' 962 908 17.70      
8 A' 506 477 7.07      
9 A" 3254 3068 11.23      
10 A" 1539 1452 6.42      
11 A" 1170 1103 0.57      
12 A" 137 129 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 9754.4 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 9198.4 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 MP2/6-31G*
ABC
1.72809 0.38145 0.33251

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.993 -0.478 0.000
O2 0.000 0.566 0.000
O3 -1.209 0.060 0.000
H4 1.956 0.035 0.000
H5 0.879 -1.089 0.897
H6 0.879 -1.089 -0.897

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.44152.26761.09051.09121.0912
O21.44151.31112.02672.07822.0782
O32.26761.31113.16522.54722.5472
H41.09052.02673.16521.79621.7962
H51.09122.07822.54721.79621.7936
H61.09122.07822.54721.79621.7936

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 110.841 O2 C1 H4 105.506
O2 C1 H5 109.502 O2 C1 H6 109.502
H4 C1 H5 110.831 H4 C1 H6 110.831
H5 C1 H6 110.538
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability