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

using model chemistry: CID/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 CID/3-21G
 hartrees
Energy at 0K-188.464768
Energy at 298.15K-188.468454
HF Energy-188.169518
Nuclear repulsion energy72.330097
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 CID/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' 3220 3000 12.09      
2 A' 3129 2915 12.68      
3 A' 1610 1500 8.13      
4 A' 1527 1423 0.19      
5 A' 1351 1259 53.97      
6 A' 1211 1128 0.60      
7 A' 950 885 15.87      
8 A' 465 433 4.08      
9 A" 3208 2989 25.19      
10 A" 1590 1481 5.82      
11 A" 1181 1100 0.38      
12 A" 167 156 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 9805.5 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 9134.8 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 CID/3-21G
ABC
1.54385 0.36260 0.31114

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.034 -0.448 0.000
O2 0.000 0.614 0.000
O3 -1.258 -0.024 0.000
H4 1.982 0.089 0.000
H5 0.938 -1.061 0.895
H6 0.938 -1.061 -0.895

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.48192.33061.08881.08931.0893
O21.48191.41012.05012.11782.1178
O32.33061.41013.24132.58772.5877
H41.08882.05013.24131.79231.7923
H51.08932.11782.58771.79231.7903
H61.08932.11782.58771.79231.7903

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 107.363 O2 C1 H4 104.741
O2 C1 H5 109.967 O2 C1 H6 109.967
H4 C1 H5 110.745 H4 C1 H6 110.745
H5 C1 H6 110.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability