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

using model chemistry: QCISD(T)/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at QCISD(T)/cc-pVTZ
 hartrees
Energy at 0K-229.190151
Energy at 298.15K 
HF Energy-228.330519
Nuclear repulsion energy123.869125
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 QCISD(T)/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.495 0.909 0.000
C2 0.000 0.671 0.000
O3 -0.202 -0.769 0.000
O4 -1.498 -1.049 0.000
H5 1.694 1.982 0.000
H6 1.956 0.472 0.886
H7 1.956 0.472 -0.886
H8 -0.488 1.070 -0.890
H9 -0.488 1.070 0.890

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51352.38643.57581.09101.09061.09062.17882.1788
C21.51351.45382.28022.14212.15662.15661.09061.0906
O32.38641.45381.32543.34092.64232.64232.06292.0629
O43.57582.28021.32544.40123.87623.87622.51022.5102
H51.09102.14213.34094.40121.77021.77022.52652.5265
H61.09062.15662.64233.87621.77021.77213.07962.5159
H71.09062.15662.64233.87621.77021.77212.51593.0796
H82.17881.09062.06292.51022.52653.07962.51591.7800
H92.17881.09062.06292.51022.52652.51593.07961.7800

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 107.057 C1 C2 H8 112.574
C1 C2 H9 112.574 C2 C1 H5 109.603
C2 C1 H6 110.773 C2 C1 H7 110.773
C2 O3 O4 110.177 O3 C2 H8 107.484
O3 C2 H9 107.484 H5 C1 H6 108.478
H5 C1 H7 108.478 H6 C1 H7 108.672
H8 C2 H9 109.388
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability