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

using model chemistry: CISD/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 CISD/6-311G*
 hartrees
Energy at 0K-189.720324
Energy at 298.15K-189.724078
HF Energy-189.250575
Nuclear repulsion energy75.815437
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 CISD/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3264 3021 12.37      
2 A' 3151 2916 20.75      
3 A' 1563 1447 13.23      
4 A' 1532 1418 0.04      
5 A' 1295 1198 53.77      
6 A' 1258 1164 12.82      
7 A' 1021 945 22.34      
8 A' 528 488 6.16      
9 A" 3248 3006 21.98      
10 A" 1549 1433 8.90      
11 A" 1214 1123 1.26      
12 A" 171 159 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 9897.5 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 9158.2 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 CISD/6-311G*
ABC
1.78841 0.38862 0.33996

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.982 -0.477 0.000
O2 0.000 0.561 0.000
O3 -1.196 0.064 0.000
H4 1.941 0.030 0.000
H5 0.866 -1.084 0.893
H6 0.866 -1.084 -0.893

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.42962.24441.08481.08591.0859
O21.42961.29502.01222.06222.0622
O32.24441.29503.13692.52272.5227
H41.08482.01223.13691.78771.7877
H51.08592.06222.52271.78771.7865
H61.08592.06222.52271.78771.7865

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 110.831 O2 C1 H4 105.491
O2 C1 H5 109.368 O2 C1 H6 109.368
H4 C1 H5 110.886 H4 C1 H6 110.886
H5 C1 H6 110.696
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability