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

using model chemistry: MP2=FULL/cc-pVTZ

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=FULL/cc-pVTZ
 hartrees
Energy at 0K-229.176092
Energy at 298.15K-229.182141
HF Energy-228.331900
Nuclear repulsion energy125.261497
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=FULL/cc-pVTZ
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' 3191 3029 10.08      
2 A' 3137 2978 11.99      
3 A' 3112 2954 7.48      
4 A' 1539 1461 5.56      
5 A' 1526 1449 2.30      
6 A' 1439 1367 15.36      
7 A' 1400 1329 0.88      
8 A' 1296 1230 124.54      
9 A' 1164 1105 6.76      
10 A' 1071 1017 17.32      
11 A' 879 834 3.25      
12 A' 521 494 11.09      
13 A' 314 298 1.45      
14 A" 3201 3039 20.04      
15 A" 3180 3019 0.40      
16 A" 1515 1438 6.80      
17 A" 1304 1238 0.29      
18 A" 1175 1116 4.28      
19 A" 816 775 1.03      
20 A" 256 243 0.40      
21 A" 76 72 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 16055.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 15243.0 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=FULL/cc-pVTZ
ABC
1.12982 0.15111 0.14025

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.484 0.893 0.000
C2 0.000 0.672 0.000
O3 -0.213 -0.761 0.000
O4 -1.475 -1.039 0.000
H5 1.692 1.957 0.000
H6 1.937 0.453 0.881
H7 1.937 0.453 -0.881
H8 -0.481 1.070 -0.885
H9 -0.481 1.070 0.885

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50022.36953.53341.08431.08371.08372.16222.1622
C21.50021.44872.25892.12432.13912.13911.08291.0829
O32.36951.44871.29173.31892.62172.62172.05082.0508
O43.53342.25891.29174.35913.82653.82652.49362.4936
H51.08432.12433.31894.35911.75981.75982.50812.5081
H61.08372.13912.62173.82651.75981.76223.05692.4952
H71.08372.13912.62173.82651.75981.76222.49523.0569
H82.16221.08292.05082.49362.50813.05692.49521.7698
H92.16221.08292.05082.49362.50812.49523.05691.7698

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 106.920 C1 C2 H8 112.665
C1 C2 H9 112.665 C2 C1 H5 109.504
C2 C1 H6 110.721 C2 C1 H7 110.721
C2 O3 O4 110.907 O3 C2 H8 107.332
O3 C2 H9 107.332 H5 C1 H6 108.526
H5 C1 H7 108.526 H6 C1 H7 108.784
H8 C2 H9 109.609
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability