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

using model chemistry: ROMP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at ROMP2/6-31G**
 hartrees
Energy at 0K-228.869621
Energy at 298.15K-228.875568
HF Energy-228.243793
Nuclear repulsion energy124.248185
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 ROMP2/6-31G**
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' 3244 3244        
2 A' 3162 3162        
3 A' 3146 3146        
4 A' 1567 1567        
5 A' 1555 1555        
6 A' 1471 1471        
7 A' 1421 1421        
8 A' 1221 1221        
9 A' 1176 1176        
10 A' 1071 1071        
11 A' 881 881        
12 A' 521 521        
13 A' 311 311        
14 A" 3256 3256        
15 A" 3230 3230        
16 A" 1544 1544        
17 A" 1310 1310        
18 A" 1188 1188        
19 A" 822 822        
20 A" 221 221        
21 A" 59 59        

Unscaled Zero Point Vibrational Energy (zpe) 16188.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16188.3 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 ROMP2/6-31G**
ABC
1.11069 0.14892 0.13813

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.493 0.899 0.000
C2 0.000 0.679 0.000
O3 -0.209 -0.766 0.000
O4 -1.489 -1.048 0.000
H5 1.705 1.967 0.000
H6 1.945 0.456 0.884
H7 1.945 0.456 -0.884
H8 -0.485 1.079 -0.888
H9 -0.485 1.079 0.888

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50912.38143.56141.08851.08751.08752.17612.1761
C21.50911.46032.28032.13702.14852.14851.08831.0883
O32.38141.46031.31033.33692.63012.63012.06642.0664
O43.56142.28031.31034.39243.85203.85202.51412.5141
H51.08852.13703.33694.39241.76691.76692.52522.5252
H61.08752.14852.63013.85201.76691.76813.07222.5095
H71.08752.14852.63013.85201.76691.76812.50953.0722
H82.17611.08832.06642.51412.52523.07222.50951.7763
H92.17611.08832.06642.51412.52522.50953.07221.7763

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 106.624 C1 C2 H8 112.811
C1 C2 H9 112.811 C2 C1 H5 109.640
C2 C1 H6 110.616 C2 C1 H7 110.616
C2 O3 O4 110.667 O3 C2 H8 107.448
O3 C2 H9 107.448 H5 C1 H6 108.576
H5 C1 H7 108.576 H6 C1 H7 108.763
H8 C2 H9 109.383
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability