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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-228.932622
Energy at 298.15K-228.938698
HF Energy-228.290924
Nuclear repulsion energy124.683083
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' 3193 3193        
2 A' 3124 3124        
3 A' 3098 3098        
4 A' 1554 1554        
5 A' 1541 1541        
6 A' 1462 1462        
7 A' 1418 1418        
8 A' 1254 1254        
9 A' 1173 1173        
10 A' 1068 1068        
11 A' 886 886        
12 A' 524 524        
13 A' 322 322        
14 A" 3204 3204        
15 A" 3185 3185        
16 A" 1526 1526        
17 A" 1319 1319        
18 A" 1195 1195        
19 A" 825 825        
20 A" 266 266        
21 A" 82 82        

Unscaled Zero Point Vibrational Energy (zpe) 16109.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16109.5 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 ROMP2/6-311G*
ABC
1.11794 0.14960 0.13887

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 0.890 0.000
C2 0.000 0.678 0.000
O3 -0.222 -0.761 0.000
O4 -1.482 -1.041 0.000
H5 1.717 1.960 0.000
H6 1.950 0.444 0.887
H7 1.950 0.444 -0.887
H8 -0.485 1.079 -0.892
H9 -0.485 1.079 0.892

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51172.38283.55011.09181.09111.09112.18102.1810
C21.51171.45552.26982.14302.15472.15471.09121.0912
O32.38281.45551.29123.34052.63672.63672.06112.0611
O43.55012.26981.29124.38653.84313.84312.50692.5069
H51.09182.14303.34054.38651.77101.77102.53392.5339
H61.09112.15472.63673.84311.77101.77303.08102.5162
H71.09112.15472.63673.84311.77101.77302.51623.0810
H82.18101.09122.06112.50692.53393.08102.51621.7830
H92.18101.09122.06112.50692.53392.51623.08101.7830

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 106.835 C1 C2 H8 112.849
C1 C2 H9 112.849 C2 C1 H5 109.747
C2 C1 H6 110.720 C2 C1 H7 110.720
C2 O3 O4 111.314 O3 C2 H8 107.194
O3 C2 H9 107.194 H5 C1 H6 108.454
H5 C1 H7 108.454 H6 C1 H7 108.681
H8 C2 H9 109.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability