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

using model chemistry: CCSD(T)/3-21G*

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)/3-21G*
 hartrees
Energy at 0K-151.759637
Energy at 298.15K 
HF Energy-151.435205
Nuclear repulsion energy61.381628
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)/3-21G*
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/3-21G*
ABC
2.76772 0.31247 0.29658

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.001 -0.683 0.000
C2 0.000 0.501 0.000
O3 1.219 0.492 0.000
H4 -0.472 -1.648 0.000
H5 -1.637 -0.597 0.891
H6 -1.637 -0.597 -0.891

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.55062.51131.10021.09841.0984
C21.55061.21882.20082.16352.1635
O32.51131.21882.72763.18383.1838
H41.10022.20082.72761.80441.8044
H51.09842.16353.18381.80441.7819
H61.09842.16353.18381.80441.7819

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 129.753 C2 C1 H4 111.110
C2 C1 H5 108.304 C2 C1 H6 108.304
H4 C1 H5 110.315 H4 C1 H6 110.315
H5 C1 H6 108.411
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability