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All results from a given calculation for CH3CO (Acetyl radical)

using model chemistry: CCSD(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 CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-152.935960
Energy at 298.15K 
HF Energy-152.355323
Nuclear repulsion energy62.796093
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)/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/cc-pVTZ
ABC
2.77990 0.33122 0.31316

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.972 -0.662 0.000
C2 0.000 0.503 0.000
O3 1.186 0.466 0.000
H4 -0.436 -1.613 0.000
H5 -1.609 -0.580 0.881
H6 -1.609 -0.580 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.51742.43511.09191.09001.0900
C21.51741.18652.16022.12992.1299
O32.43511.18652.63643.11123.1112
H41.09192.16022.63641.79451.7945
H51.09002.12993.11121.79451.7623
H61.09002.12993.11121.79451.7623

picture of Acetyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 128.059 C2 C1 H4 110.709
C2 C1 H5 108.432 C2 C1 H6 108.432
H4 C1 H5 110.653 H4 C1 H6 110.653
H5 C1 H6 107.870
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability