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All results from a given calculation for CH3COCH2 (Acetonyl 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-35.299723
Energy at 298.15K-35.304270
HF Energy-34.957958
Nuclear repulsion energy60.484530
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
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3261 3182 5.07      
2 A' 3133 3058 8.28      
3 A' 3113 3038 9.29      
4 A' 2986 2915 6.36      
5 A' 1571 1534 50.86      
6 A' 1507 1471 17.71      
7 A' 1459 1424 9.08      
8 A' 1444 1409 31.56      
9 A' 1239 1210 86.69      
10 A' 1088 1062 11.10      
11 A' 894 873 32.58      
12 A' 803 784 4.16      
13 A' 524 511 16.43      
14 A' 380 371 4.16      
15 A" 3087 3013 18.00      
16 A" 1500 1464 13.63      
17 A" 1077 1051 3.81      
18 A" 621 606 47.57      
19 A" 525 512 6.58      
20 A" 300 292 0.12      
21 A" 76 74 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15293.4 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 14926.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/CEP-121G
ABC
0.34950 0.29244 0.16419

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 0.000 0.155 0.000
O2 0.392 1.339 0.000
C3 -1.456 -0.161 0.000
C4 0.987 -1.033 0.000
H5 -2.162 0.670 0.000
H6 -1.821 -1.190 0.000
H7 2.011 -0.640 0.000
H8 0.826 -1.661 0.892
H9 0.826 -1.661 -0.892

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.24691.49021.54432.22232.26402.16232.18562.1856
O21.24692.38072.44502.64053.36072.55643.15963.1596
C31.49022.38072.59351.09021.09173.49992.87282.8728
C41.54432.44502.59353.57932.81161.09721.10271.1027
H52.22232.64051.09023.57931.89104.37353.89303.8930
H62.26403.36071.09172.81161.89103.87092.83232.8323
H72.16232.55643.49991.09724.37353.87091.80071.8007
H82.18563.15962.87281.10273.89302.83231.80071.7839
H92.18563.15962.87281.10273.89302.83231.80071.7839

picture of Acetonyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 118.079 C1 C3 H6 121.771
C1 C4 H7 108.714 C1 C4 H8 110.201
C1 C4 H9 110.201 O2 C1 C3 120.602
O2 C1 C4 121.960 C3 C1 C4 117.437
H5 C3 H6 120.150 H7 C4 H8 109.878
H7 C4 H9 109.878 H8 C4 H9 107.965
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability