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

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-152.819570
Energy at 298.15K 
HF Energy-152.313428
Nuclear repulsion energy62.818985
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 MP2/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at MP2/6-31G(2df,p)
ABC
2.78002 0.33179 0.31358

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.971 -0.659 0.000
C2 0.000 0.503 0.000
O3 1.187 0.463 0.000
H4 -0.446 -1.615 0.000
H5 -1.610 -0.574 0.879
H6 -1.610 -0.574 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.51422.43221.09111.08981.0898
C21.51421.18752.16432.12712.1271
O32.43221.18752.64263.10983.1098
H41.09112.16432.64261.79211.7921
H51.08982.12713.10981.79211.7578
H61.08982.12713.10981.79211.7578

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 127.973 C2 C1 H4 111.306
C2 C1 H5 108.445 C2 C1 H6 108.445
H4 C1 H5 110.512 H4 C1 H6 110.512
H5 C1 H6 107.504
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability