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

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-151.760816
Energy at 298.15K 
HF Energy-151.435344
Nuclear repulsion energy61.391467
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 MP4/3-21G
Rotational Constants (cm-1) from geometry optimized at MP4/3-21G
ABC
2.71875 0.31265 0.29615

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.993 -0.702 0.000
C2 0.000 0.512 0.000
O3 1.210 0.502 0.000
H4 -0.460 -1.662 0.000
H5 -1.628 -0.608 0.890
H6 -1.628 -0.608 -0.890

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.56882.51061.09811.09761.0976
C21.56881.20962.22262.16782.1678
O32.51061.20962.73373.17483.1748
H41.09812.22262.73371.80771.8077
H51.09762.16783.17481.80771.7806
H61.09762.16783.17481.80771.7806

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 128.809 C2 C1 H4 111.682
C2 C1 H5 107.462 C2 C1 H6 107.462
H4 C1 H5 110.834 H4 C1 H6 110.834
H5 C1 H6 108.412
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability