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

using model chemistry: ROMP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at ROMP2/6-311G**
 hartrees
Energy at 0K-228.969665
Energy at 298.15K-228.975731
HF Energy-228.298423
Nuclear repulsion energy124.661096
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 ROMP2/6-311G**
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' 3189 3189        
2 A' 3118 3118        
3 A' 3094 3094        
4 A' 1536 1536        
5 A' 1524 1524        
6 A' 1449 1449        
7 A' 1404 1404        
8 A' 1249 1249        
9 A' 1167 1167        
10 A' 1069 1069        
11 A' 886 886        
12 A' 524 524        
13 A' 320 320        
14 A" 3200 3200        
15 A" 3179 3179        
16 A" 1505 1505        
17 A" 1309 1309        
18 A" 1185 1185        
19 A" 824 824        
20 A" 263 263        
21 A" 77 77        

Unscaled Zero Point Vibrational Energy (zpe) 16034.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16034.9 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 ROMP2/6-311G**
ABC
1.11818 0.14955 0.13885

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.497 0.891 0.000
C2 0.000 0.676 0.000
O3 -0.221 -0.760 0.000
O4 -1.483 -1.042 0.000
H5 1.712 1.962 0.000
H6 1.949 0.444 0.888
H7 1.949 0.444 -0.888
H8 -0.481 1.082 -0.892
H9 -0.481 1.082 0.892

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51242.38303.55141.09281.09191.09192.17882.1788
C21.51241.45362.26922.14122.15452.15451.09191.0919
O32.38301.45361.29233.33912.63642.63642.06352.0635
O43.55142.26921.29234.38513.84373.84372.51162.5116
H51.09282.14123.33914.38511.77451.77452.52632.5263
H61.09192.15452.63643.84371.77451.77633.07962.5130
H71.09192.15452.63643.84371.77451.77632.51303.0796
H82.17881.09192.06352.51162.52633.07962.51301.7842
H92.17881.09192.06352.51162.52632.51303.07961.7842

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 106.902 C1 C2 H8 112.570
C1 C2 H9 112.570 C2 C1 H5 109.494
C2 C1 H6 110.603 C2 C1 H7 110.603
C2 O3 O4 111.328 O3 C2 H8 107.469
O3 C2 H9 107.469 H5 C1 H6 108.621
H5 C1 H7 108.621 H6 C1 H7 108.849
H8 C2 H9 109.570
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability