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

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-28.586903
Energy at 298.15K 
HF Energy-28.298435
Nuclear repulsion energy33.693474
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 MP2/CEP-121G
Rotational Constants (cm-1) from geometry optimized at MP2/CEP-121G
ABC
2.62458 0.31700 0.29886

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.942 -0.686 0.000
C2 0.000 0.561 0.000
O3 1.217 0.560 0.000
H4 -0.367 -1.626 0.000
H5 -1.584 -0.617 0.890
H6 -1.584 -0.617 -0.890

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.56312.49211.10151.10001.1000
C21.56311.21682.21772.16542.1654
O32.49211.21682.69883.16533.1653
H41.10152.21772.69881.81451.8145
H51.10002.16543.16531.81451.7807
H61.10002.16543.16531.81451.7807

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 126.955 C2 C1 H4 111.497
C2 C1 H5 107.529 C2 C1 H6 107.529
H4 C1 H5 111.017 H4 C1 H6 111.017
H5 C1 H6 108.081
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability