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All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-191.291214
Energy at 298.15K-191.297330
HF Energy-190.883638
Nuclear repulsion energy117.701088
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=FULL/3-21G*
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 3193 3027 7.11 60.40 0.68 0.81
2 A 3152 2989 0.00 6.22 0.75 0.86
3 A 3090 2929 3.71 158.86 0.01 0.02
4 A 1673 1586 24.14 2.19 0.75 0.86
5 A 1573 1491 0.00 39.57 0.75 0.86
6 A 1559 1478 32.64 38.90 0.75 0.86
7 A 1467 1391 19.88 1.84 0.71 0.83
8 A 1119 1061 0.10 6.51 0.63 0.77
9 A 967 917 0.00 4.31 0.75 0.86
10 A 753 714 1.06 13.12 0.17 0.29
11 A 383 363 0.45 0.24 0.49 0.65
12 A 115 109 0.00 0.06 0.75 0.86
13 B 3192 3026 10.73 47.07 0.75 0.86
14 B 3159 2995 16.51 90.39 0.75 0.86
15 B 3086 2925 1.75 0.13 0.75 0.86
16 B 1592 1509 24.10 0.51 0.75 0.86
17 B 1566 1485 0.70 1.01 0.75 0.86
18 B 1458 1382 39.07 6.30 0.75 0.86
19 B 1236 1172 90.13 0.04 0.75 0.86
20 B 1178 1116 3.67 0.11 0.75 0.86
21 B 916 868 11.10 4.29 0.75 0.86
22 B 513 487 11.61 2.26 0.75 0.86
23 B 508 482 0.00 1.19 0.75 0.86
24 B 168 160 0.27 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18807.6 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 17829.6 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=FULL/3-21G*
ABC
0.32030 0.28310 0.15929

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.188
O2 0.000 0.000 1.440
C3 0.000 1.291 -0.636
C4 0.000 -1.291 -0.636
H5 0.001 2.146 0.044
H6 -0.001 -2.146 0.044
H7 0.887 1.326 -1.279
H8 -0.888 1.327 -1.277
H9 -0.887 -1.326 -1.279
H10 0.888 -1.327 -1.277

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.25171.53151.53152.15092.15092.16752.16732.16752.1673
O21.25172.44452.44452.56042.56043.15243.15163.15243.1516
C31.53152.44452.58171.09223.50351.09581.09582.83722.8379
C41.53152.44452.58173.50351.09222.83722.83791.09581.0958
H52.15092.56041.09223.50354.29211.79041.79023.82033.8203
H62.15092.56043.50351.09224.29213.82033.82031.79041.7902
H72.16753.15241.09582.83721.79043.82031.77433.19082.6536
H82.16733.15161.09582.83791.79023.82031.77432.65363.1935
H92.16753.15242.83721.09583.82031.79043.19082.65361.7743
H102.16733.15162.83791.09583.82031.79022.65363.19351.7743

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 108.980 C1 C3 H7 110.068
C1 C3 H8 110.053 C1 C4 H6 108.980
C1 C4 H9 110.068 C1 C4 H10 110.053
O2 C1 C3 122.555 O2 C1 C4 122.555
C3 C1 C4 114.891 H5 C3 H7 109.820
H5 C3 H8 109.800 H6 C4 H9 109.820
H6 C4 H10 109.800 H7 C3 H8 108.111
H9 C4 H10 108.111
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability