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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-188.474043
Energy at 298.15K-188.477682
HF Energy-188.168667
Nuclear repulsion energy72.233014
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 MP2/3-21G*
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 3062 11.00      
2 A' 3113 2962 12.45      
3 A' 1601 1523 9.33      
4 A' 1532 1457 15.11      
5 A' 1428 1358 75.44      
6 A' 1186 1129 0.50      
7 A' 907 862 12.45      
8 A' 461 438 4.65      
9 A" 3202 3046 22.20      
10 A" 1584 1507 5.62      
11 A" 1156 1100 0.17      
12 A" 150 143 1.10      

Unscaled Zero Point Vibrational Energy (zpe) 9769.2 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 9293.4 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 MP2/3-21G*
ABC
1.53506 0.36145 0.30999

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.034 -0.468 0.000
O2 0.000 0.618 0.000
O3 -1.255 -0.004 0.000
H4 1.986 0.060 0.000
H5 0.924 -1.079 0.897
H6 0.924 -1.079 -0.897

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.49912.33481.08961.09051.0905
O21.49911.40022.06302.13012.1301
O32.33481.40023.24162.58992.5899
H41.08962.06303.24161.79741.7974
H51.09052.13012.58991.79741.7932
H61.09052.13012.58991.79741.7932

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 107.230 O2 C1 H4 104.567
O2 C1 H5 109.679 O2 C1 H6 109.679
H4 C1 H5 111.068 H4 C1 H6 111.068
H5 C1 H6 110.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability