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

using model chemistry: MP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-186.897428
Energy at 298.15K-186.901029
HF Energy-186.781490
Nuclear repulsion energy72.777668
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/STO-3G
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' 3543 3089 0.75      
2 A' 3339 2912 2.31      
3 A' 1701 1483 3.54      
4 A' 1609 1403 1.34      
5 A' 1411 1230 37.30      
6 A' 1264 1102 0.51      
7 A' 1073 936 0.28      
8 A' 500 436 1.27      
9 A" 3512 3062 4.53      
10 A" 1685 1470 2.19      
11 A" 1192 1039 2.14      
12 A" 155 135 0.65      

Unscaled Zero Point Vibrational Energy (zpe) 10492.6 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 9148.5 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/STO-3G
ABC
1.55258 0.36824 0.31602

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.011 -0.478 0.000
O2 0.000 0.614 0.000
O3 -1.237 0.022 0.000
H4 2.003 0.014 0.000
H5 0.915 -1.116 0.904
H6 0.915 -1.116 -0.904

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.48822.30241.10721.11041.1104
O21.48821.37152.09062.15592.1559
O32.30241.37153.23952.59652.5965
H41.10722.09063.23951.81001.8100
H51.11042.15592.59651.81001.8077
H61.11042.15592.59651.81001.8077

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 107.176 O2 C1 H4 106.396
O2 C1 H5 111.298 O2 C1 H6 111.298
H4 C1 H5 109.413 H4 C1 H6 109.413
H5 C1 H6 108.973
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability