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

using model chemistry: QCISD/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-189.731857
Energy at 298.15K-189.735521
HF Energy-189.209769
Nuclear repulsion energy74.225245
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/6-31+G**
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' 3245 3068 9.90      
2 A' 3127 2957 18.16      
3 A' 1537 1453 7.86      
4 A' 1485 1404 2.64      
5 A' 1223 1156 5.62      
6 A' 1109 1049 11.59      
7 A' 940 888 16.89      
8 A' 490 463 5.23      
9 A" 3237 3060 13.64      
10 A" 1521 1438 6.24      
11 A" 1159 1096 1.90      
12 A" 161 152 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 9616.9 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 9091.8 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/6-31+G**
ABC
1.68827 0.37551 0.32647

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.010 -0.462 0.000
O2 0.000 0.580 0.000
O3 -1.226 0.024 0.000
H4 1.960 0.068 0.000
H5 0.893 -1.065 0.897
H6 0.893 -1.065 -0.897

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.45142.28871.08721.08741.0874
O21.45141.34612.02592.07582.0758
O32.28871.34613.18632.54592.5459
H41.08722.02593.18631.79641.7964
H51.08742.07582.54591.79641.7936
H61.08742.07582.54591.79641.7936

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 109.741 O2 C1 H4 104.976
O2 C1 H5 108.854 O2 C1 H6 108.854
H4 C1 H5 111.397 H4 C1 H6 111.397
H5 C1 H6 111.122
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability