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

using model chemistry: CCSD/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/cc-pVDZ
 hartrees
Energy at 0K-228.933171
Energy at 298.15K-228.939188
HF Energy-228.259548
Nuclear repulsion energy123.593055
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/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' 3166 2999 16.51      
2 A' 3093 2930 14.49      
3 A' 3076 2914 14.01      
4 A' 1513 1434 2.58      
5 A' 1500 1421 1.48      
6 A' 1432 1356 21.71      
7 A' 1383 1310 11.31      
8 A' 1175 1113 28.04      
9 A' 1155 1094 12.60      
10 A' 1069 1013 12.98      
11 A' 878 832 3.39      
12 A' 518 491 8.56      
13 A' 310 293 1.43      
14 A" 3172 3005 31.92      
15 A" 3147 2981 6.53      
16 A" 1483 1405 5.32      
17 A" 1282 1215 0.45      
18 A" 1166 1105 5.04      
19 A" 809 766 0.56      
20 A" 237 224 0.49      
21 A" 91 86 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 15827.4 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 14993.3 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 CCSD/cc-pVDZ
ABC
1.10163 0.14760 0.13703

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.502 0.904 0.000
C2 0.000 0.669 0.000
O3 -0.208 -0.768 0.000
O4 -1.501 -1.043 0.000
H5 1.708 1.988 0.000
H6 1.966 0.457 0.896
H7 1.966 0.457 -0.896
H8 -0.491 1.080 -0.899
H9 -0.491 1.080 0.899

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.52002.39133.57851.10381.10351.10352.19282.1928
C21.52001.45202.27672.15842.17112.17111.10361.1036
O32.39131.45201.32183.35702.65192.65192.07492.0749
O43.57852.27671.32184.41453.88283.88282.51762.5176
H51.10382.15843.35704.41451.79211.79212.54312.5431
H61.10352.17112.65193.88281.79211.79213.10582.5346
H71.10352.17112.65193.88281.79211.79212.53463.1058
H82.19281.10362.07492.51762.54313.10582.53461.7976
H92.19281.10362.07492.51762.54312.53463.10581.7976

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 107.125 C1 C2 H8 112.432
C1 C2 H9 112.432 C2 C1 H5 109.685
C2 C1 H6 110.698 C2 C1 H7 110.698
C2 O3 O4 110.240 O3 C2 H8 107.784
O3 C2 H9 107.784 H5 C1 H6 108.563
H5 C1 H7 108.563 H6 C1 H7 108.576
H8 C2 H9 109.061
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability