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

using model chemistry: QCISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-189.780981
Energy at 298.15K-189.784695
HF Energy-189.249083
Nuclear repulsion energy74.866763
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 QCISD/6-311G*
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' 3180 3045 12.14      
2 A' 3068 2938 16.55      
3 A' 1520 1455 9.94      
4 A' 1482 1419 0.42      
5 A' 1234 1181 5.46      
6 A' 1145 1096 10.16      
7 A' 963 922 16.01      
8 A' 507 486 5.89      
9 A" 3166 3031 18.86      
10 A" 1505 1440 8.83      
11 A" 1170 1120 1.04      
12 A" 178 170 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 9559.0 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 9151.8 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 QCISD/6-311G*
ABC
1.72099 0.38177 0.33253

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.997 -0.467 0.000
O2 0.000 0.573 0.000
O3 -1.212 0.040 0.000
H4 1.957 0.052 0.000
H5 0.878 -1.076 0.899
H6 0.878 -1.076 -0.899

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.44112.26661.09161.09241.0924
O21.44111.32402.02522.07342.0734
O32.26661.32403.16902.53382.5338
H41.09162.02523.16901.80211.8021
H51.09242.07342.53381.80211.7980
H61.09242.07342.53381.80211.7980

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 110.040 O2 C1 H4 105.350
O2 C1 H5 109.070 O2 C1 H6 109.070
H4 C1 H5 111.204 H4 C1 H6 111.204
H5 C1 H6 110.763
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability