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All results from a given calculation for C2H5OO (ethylperoxy radical)

using model chemistry: MP2/6-31+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 MP2/6-31+G**
 hartrees
Energy at 0K-228.883524
Energy at 298.15K-228.889512
HF Energy-228.254993
Nuclear repulsion energy123.994573
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 MP2/6-31+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' 3232 3040 12.35      
2 A' 3163 2975 13.72      
3 A' 3134 2948 10.11      
4 A' 1555 1463 4.08      
5 A' 1546 1454 2.97      
6 A' 1465 1378 16.91      
7 A' 1412 1328 5.45      
8 A' 1268 1193 149.82      
9 A' 1168 1099 6.92      
10 A' 1061 998 17.43      
11 A' 870 818 6.11      
12 A' 513 483 11.15      
13 A' 314 296 1.51      
14 A" 3249 3056 23.88      
15 A" 3230 3038 0.12      
16 A" 1530 1439 7.44      
17 A" 1303 1226 0.13      
18 A" 1180 1110 4.16      
19 A" 825 776 0.46      
20 A" 242 228 0.45      
21 A" 65 61 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 16162.6 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 15202.5 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 MP2/6-31+G**
ABC
1.10836 0.14813 0.13744

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.493 0.905 0.000
C2 0.000 0.685 0.000
O3 -0.209 -0.767 0.000
O4 -1.489 -1.058 0.000
H5 1.700 1.975 0.000
H6 1.948 0.466 0.886
H7 1.948 0.466 -0.886
H8 -0.488 1.075 -0.891
H9 -0.488 1.075 0.891

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50922.38593.56991.08951.08831.08832.17882.1788
C21.50921.46702.29222.13372.15092.15091.08811.0881
O32.38591.46701.31253.34072.63732.63732.06522.0652
O43.56992.29221.31254.40053.86203.86202.51892.5189
H51.08952.13373.34074.40051.76731.76732.52782.5278
H61.08832.15092.63733.86201.76731.77163.07592.5109
H71.08832.15092.63733.86201.76731.77162.51093.0759
H82.17881.08812.06522.51892.52783.07592.51091.7818
H92.17881.08812.06522.51892.52782.51093.07591.7818

picture of ethylperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 106.567 C1 C2 H8 113.046
C1 C2 H9 113.046 C2 C1 H5 109.321
C2 C1 H6 110.761 C2 C1 H7 110.761
C2 O3 O4 110.989 O3 C2 H8 106.915
O3 C2 H9 106.915 H5 C1 H6 108.488
H5 C1 H7 108.488 H6 C1 H7 108.961
H8 C2 H9 109.919
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability