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

using model chemistry: CCD/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 CCD/6-31G**
 hartrees
Energy at 0K-228.902987
Energy at 298.15K-228.909035
HF Energy-228.249827
Nuclear repulsion energy124.157500
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 CCD/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' 3222 3021 17.88      
2 A' 3150 2954 16.32      
3 A' 3133 2938 10.75      
4 A' 1577 1479 1.95      
5 A' 1561 1463 2.23      
6 A' 1484 1392 15.80      
7 A' 1433 1343 9.84      
8 A' 1230 1153 112.36      
9 A' 1187 1113 12.74      
10 A' 1082 1015 11.17      
11 A' 901 845 3.60      
12 A' 523 490 8.61      
13 A' 318 298 1.18      
14 A" 3232 3031 33.00      
15 A" 3208 3008 6.71      
16 A" 1548 1451 4.54      
17 A" 1319 1237 0.12      
18 A" 1204 1129 4.60      
19 A" 830 779 0.30      
20 A" 244 229 0.52      
21 A" 83 78 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 16234.0 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 15221.0 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 CCD/6-31G**
ABC
1.11408 0.14860 0.13790

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.497 0.900 0.000
C2 0.000 0.673 0.000
O3 -0.208 -0.765 0.000
O4 -1.494 -1.045 0.000
H5 1.706 1.969 0.000
H6 1.951 0.457 0.885
H7 1.951 0.457 -0.885
H8 -0.482 1.079 -0.888
H9 -0.482 1.079 0.888

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51372.38273.56741.08931.08851.08852.17642.1764
C21.51371.45252.27652.14212.15332.15331.08911.0891
O32.38271.45251.31613.33702.63452.63452.06502.0650
O43.56742.27651.31614.39543.86163.86162.51472.5147
H51.08932.14213.33704.39541.76841.76842.52302.5230
H61.08852.15332.63453.86161.76841.76913.07432.5121
H71.08852.15332.63453.86161.76841.76912.51213.0743
H82.17641.08912.06502.51472.52303.07432.51211.7752
H92.17641.08912.06502.51472.52302.51213.07431.7752

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 106.871 C1 C2 H8 112.456
C1 C2 H9 112.456 C2 C1 H5 109.678
C2 C1 H6 110.620 C2 C1 H7 110.620
C2 O3 O4 110.523 O3 C2 H8 107.824
O3 C2 H9 107.824 H5 C1 H6 108.583
H5 C1 H7 108.583 H6 C1 H7 108.702
H8 C2 H9 109.180
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability