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

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-189.694542
Energy at 298.15K-189.698218
HF Energy-189.199772
Nuclear repulsion energy74.261252
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/6-31G*
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' 3205 3052 11.23      
2 A' 3096 2948 15.26      
3 A' 1534 1461 6.91      
4 A' 1482 1412 1.46      
5 A' 1224 1166 4.01      
6 A' 1122 1069 11.21      
7 A' 950 904 16.04      
8 A' 495 471 5.86      
9 A" 3197 3045 16.10      
10 A" 1521 1449 5.84      
11 A" 1162 1106 0.86      
12 A" 169 161 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 9578.1 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 9121.2 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/6-31G*
ABC
1.67546 0.37759 0.32771

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.006 -0.461 0.000
O2 0.000 0.582 0.000
O3 -1.222 0.022 0.000
H4 1.964 0.065 0.000
H5 0.889 -1.070 0.900
H6 0.889 -1.070 -0.900

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.44932.28041.09281.09301.0930
O21.44931.34462.03082.08082.0808
O32.28041.34463.18662.54182.5418
H41.09282.03083.18661.80401.8040
H51.09302.08082.54181.80401.8000
H61.09302.08082.54181.80401.8000

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 109.356 O2 C1 H4 105.181
O2 C1 H5 109.061 O2 C1 H6 109.061
H4 C1 H5 111.242 H4 C1 H6 111.242
H5 C1 H6 110.857
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability