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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-189.718855
Energy at 298.15K-189.722532
HF Energy-189.204843
Nuclear repulsion energy74.355250
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
(Å4/u)
Dep P Dep U
1 A' 3247 3057 12.82      
2 A' 3131 2948 17.25      
3 A' 1547 1456 5.43      
4 A' 1491 1403 3.23      
5 A' 1227 1155 4.76      
6 A' 1123 1057 12.10      
7 A' 952 896 15.63      
8 A' 493 464 5.56      
9 A" 3238 3048 18.39      
10 A" 1533 1443 4.40      
11 A" 1165 1097 1.49      
12 A" 165 155 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 9656.0 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 9090.2 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
1.67982 0.37843 0.32826

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 -0.459 0.000
O2 0.000 0.583 0.000
O3 -1.222 0.021 0.000
H4 1.959 0.063 0.000
H5 0.890 -1.066 0.895
H6 0.890 -1.066 -0.895

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.44802.27841.08691.08731.0873
O21.44801.34482.02662.07642.0764
O32.27841.34483.18092.53812.5381
H41.08692.02663.18091.79361.7936
H51.08732.07642.53811.79361.7894
H61.08732.07642.53811.79361.7894

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 109.285 O2 C1 H4 105.276
O2 C1 H5 109.144 O2 C1 H6 109.144
H4 C1 H5 111.172 H4 C1 H6 111.172
H5 C1 H6 110.755
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability