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

using model chemistry: CCSD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-189.704858
Energy at 298.15K-189.708543
HF Energy-189.199770
Nuclear repulsion energy74.249716
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 CCSD(T)/6-31G*
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' 3191 3070        
2 A' 3081 2964        
3 A' 1527 1470        
4 A' 1475 1419        
5 A' 1216 1170        
6 A' 1143 1100        
7 A' 944 908        
8 A' 493 475        
9 A" 3183 3062        
10 A" 1518 1460        
11 A" 1159 1115        
12 A" 176 170        

Unscaled Zero Point Vibrational Energy (zpe) 9551.7 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 9189.7 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 CCSD(T)/6-31G*
ABC
1.67767 0.37701 0.32739

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.006 -0.466 0.000
O2 0.000 0.582 0.000
O3 -1.222 0.029 0.000
H4 1.966 0.058 0.000
H5 0.886 -1.075 0.901
H6 0.886 -1.075 -0.901

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.45282.28201.09401.09411.0941
O21.45281.34122.03462.08452.0845
O32.28201.34123.18792.54492.5449
H41.09402.03463.18791.80611.8061
H51.09412.08452.54491.80611.8017
H61.09412.08452.54491.80611.8017

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 109.459 O2 C1 H4 105.178
O2 C1 H5 109.045 O2 C1 H6 109.045
H4 C1 H5 111.266 H4 C1 H6 111.266
H5 C1 H6 110.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability