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

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-189.700413
Energy at 298.15K-189.704102
HF Energy-189.206452
Nuclear repulsion energy75.139637
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 MP3/6-31+G**
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' 3279 3051 10.99      
2 A' 3161 2942 18.73      
3 A' 1559 1450 8.32      
4 A' 1512 1407 0.77      
5 A' 1246 1159 36.12      
6 A' 1222 1137 55.61      
7 A' 997 928 16.93      
8 A' 512 476 6.01      
9 A" 3268 3041 18.32      
10 A" 1544 1437 4.75      
11 A" 1185 1103 1.45      
12 A" 147 137 0.48      

Unscaled Zero Point Vibrational Energy (zpe) 9815.5 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 9133.4 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 MP3/6-31+G**
ABC
1.73528 0.38388 0.33439

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.991 -0.472 0.000
O2 0.000 0.567 0.000
O3 -1.207 0.053 0.000
H4 1.949 0.037 0.000
H5 0.883 -1.083 0.892
H6 0.883 -1.083 -0.892

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.43572.25981.08561.08661.0866
O21.43571.31202.02012.07342.0734
O32.25981.31203.15672.54102.5410
H41.08562.02013.15671.78551.7855
H51.08662.07342.54101.78551.7840
H61.08662.07342.54101.78551.7840

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 110.580 O2 C1 H4 105.650
O2 C1 H5 109.800 O2 C1 H6 109.800
H4 C1 H5 110.570 H4 C1 H6 110.570
H5 C1 H6 110.349
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability