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

using model chemistry: MP2=FULL/3-21G*

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=FULL/3-21G*
 hartrees
Energy at 0K-188.479240
Energy at 298.15K-188.482879
HF Energy-188.168686
Nuclear repulsion energy72.242717
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=FULL/3-21G*
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' 3219 3052 10.93      
2 A' 3114 2952 12.41      
3 A' 1601 1518 9.36      
4 A' 1532 1452 14.97      
5 A' 1428 1354 75.74      
6 A' 1187 1125 0.50      
7 A' 907 860 12.43      
8 A' 461 437 4.65      
9 A" 3203 3036 22.11      
10 A" 1584 1502 5.65      
11 A" 1157 1096 0.17      
12 A" 150 142 1.10      

Unscaled Zero Point Vibrational Energy (zpe) 9770.6 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 9262.5 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=FULL/3-21G*
ABC
1.53565 0.36153 0.31007

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.034 -0.468 0.000
O2 0.000 0.617 0.000
O3 -1.255 -0.004 0.000
H4 1.986 0.061 0.000
H5 0.924 -1.079 0.896
H6 0.924 -1.079 -0.896

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.49872.33451.08941.09041.0904
O21.49871.40012.06272.12982.1298
O32.33451.40013.24132.58972.5897
H41.08942.06273.24131.79711.7971
H51.09042.12982.58971.79711.7929
H61.09042.12982.58971.79711.7929

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 107.236 O2 C1 H4 104.576
O2 C1 H5 109.685 O2 C1 H6 109.685
H4 C1 H5 111.062 H4 C1 H6 111.062
H5 C1 H6 110.600
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability