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

using model chemistry: CCSD(T)=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CCSD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-228.960810
Energy at 298.15K-228.966769
HF Energy-228.258999
Nuclear repulsion energy123.297346
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 CCSD(T)=FULL/cc-pVDZ
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' 3159 3043        
2 A' 3077 2964        
3 A' 3065 2953        
4 A' 1504 1449        
5 A' 1491 1436        
6 A' 1418 1366        
7 A' 1368 1318        
8 A' 1152 1109        
9 A' 1131 1089        
10 A' 1054 1016        
11 A' 862 830        
12 A' 511 492        
13 A' 304 293        
14 A" 3164 3047        
15 A" 3135 3020        
16 A" 1475 1421        
17 A" 1277 1230        
18 A" 1157 1115        
19 A" 804 775        
20 A" 220 212        
21 A" 88 85        

Unscaled Zero Point Vibrational Energy (zpe) 15708.1 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 15130.0 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 CCSD(T)=FULL/cc-pVDZ
ABC
1.09629 0.14699 0.13643

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.502 0.909 0.000
C2 0.000 0.672 0.000
O3 -0.204 -0.771 0.000
O4 -1.503 -1.049 0.000
H5 1.706 1.993 0.000
H6 1.967 0.463 0.897
H7 1.967 0.463 -0.897
H8 -0.493 1.081 -0.900
H9 -0.493 1.081 0.900

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.52022.39403.58661.10381.10381.10382.19482.1948
C21.52021.45702.28512.15792.17132.17131.10441.1044
O32.39401.45701.32863.36012.65322.65322.07892.0789
O43.58662.28511.32864.42233.89003.89002.52342.5234
H51.10382.15793.36014.42231.79271.79272.54492.5449
H61.10382.17132.65323.89001.79271.79313.10762.5359
H71.10382.17132.65323.89001.79271.79312.53593.1076
H82.19481.10442.07892.52342.54493.10762.53591.7991
H92.19481.10442.07892.52342.54492.53593.10761.7991

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 107.032 C1 C2 H8 112.531
C1 C2 H9 112.531 C2 C1 H5 109.627
C2 C1 H6 110.677 C2 C1 H7 110.677
C2 O3 O4 110.149 O3 C2 H8 107.715
O3 C2 H9 107.715 H5 C1 H6 108.587
H5 C1 H7 108.587 H6 C1 H7 108.629
H8 C2 H9 109.075
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability