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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-228.554928
Energy at 298.15K-228.560805
HF Energy-228.144596
Nuclear repulsion energy120.473862
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' 3164 3164        
2 A' 3105 3105        
3 A' 3079 3079        
4 A' 1582 1582        
5 A' 1571 1571        
6 A' 1493 1493        
7 A' 1428 1428        
8 A' 1167 1167        
9 A' 1045 1045        
10 A' 914 914        
11 A' 812 812        
12 A' 482 482        
13 A' 297 297        
14 A" 3186 3186        
15 A" 3164 3164        
16 A" 1560 1560        
17 A" 1319 1319        
18 A" 1189 1189        
19 A" 849 849        
20 A" 232 232        
21 A" 70 70        

Unscaled Zero Point Vibrational Energy (zpe) 15852.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15852.6 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
1.05412 0.14023 0.12991

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 1.507 0.950 0.000
C2 0.000 0.712 0.000
O3 -0.177 -0.787 0.000
O4 -1.535 -1.116 0.000
H5 1.711 2.029 0.000
H6 1.968 0.507 0.891
H7 1.968 0.507 -0.891
H8 -0.495 1.102 -0.896
H9 -0.495 1.102 0.896

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.52592.41923.67761.09861.09641.09642.19892.1989
C21.52591.50902.38702.15952.16972.16971.09571.0957
O32.41921.50901.39773.39042.65852.65852.11462.1146
O43.67762.38701.39774.52013.96223.96222.60852.6085
H51.09862.15953.39044.52011.78251.78252.55532.5553
H61.09642.16972.65853.96221.78251.78213.10052.5335
H71.09642.16972.65853.96221.78251.78212.53353.1005
H82.19891.09572.11462.60852.55533.10052.53351.7926
H92.19891.09572.11462.60852.55532.53353.10051.7926

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 105.709 C1 C2 H8 112.995
C1 C2 H9 112.995 C2 C1 H5 109.666
C2 C1 H6 110.599 C2 C1 H7 110.599
C2 O3 O4 110.350 O3 C2 H8 107.494
O3 C2 H9 107.494 H5 C1 H6 108.603
H5 C1 H7 108.603 H6 C1 H7 108.717
H8 C2 H9 109.778
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability