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All results from a given calculation for CH3COCH3 (Acetone)

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 C2V 1A1
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-192.678807
Energy at 298.15K-192.684784
HF Energy-191.983214
Nuclear repulsion energy119.382808
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)
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 3236 3056 2.88 57.09 0.67 0.81
2 A 3189 3012 0.00 7.23 0.75 0.86
3 A 3108 2936 2.85 182.39 0.01 0.01
4 A 1797 1697 101.88 6.43 0.48 0.64
5 A 1496 1413 23.11 26.36 0.72 0.84
6 A 1492 1410 0.00 23.53 0.75 0.86
7 A 1400 1322 14.20 1.37 0.72 0.84
8 A 1089 1029 0.28 3.77 0.50 0.67
9 A 891 842 0.00 1.98 0.75 0.86
10 A 805 761 1.15 12.18 0.13 0.23
11 A 374 353 1.07 0.29 0.65 0.79
12 A 65 62 0.00 0.04 0.75 0.86
13 B 3235 3056 5.03 46.13 0.75 0.86
14 B 3195 3018 7.83 88.37 0.75 0.86
15 B 3104 2932 0.58 0.01 0.75 0.86
16 B 1516 1432 18.18 0.21 0.75 0.86
17 B 1488 1406 0.13 0.95 0.75 0.86
18 B 1407 1329 66.47 2.33 0.75 0.86
19 B 1255 1185 58.81 0.99 0.75 0.86
20 B 1125 1062 3.42 0.07 0.75 0.86
21 B 901 851 4.16 3.00 0.75 0.86
22 B 526 497 14.67 1.51 0.75 0.86
23 B 489 462 0.30 0.67 0.75 0.86
24 B 154 145 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18669.0 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 17632.8 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 MP2/6-31G(2df,p)
ABC
0.33595 0.28644 0.16396

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.187
O2 0.000 0.000 1.403
C3 0.000 1.283 -0.616
C4 0.000 -1.283 -0.616
H5 0.000 2.139 0.054
H6 -0.000 -2.139 0.054
H7 0.878 1.320 -1.265
H8 -0.878 1.320 -1.265
H9 -0.878 -1.320 -1.265
H10 0.878 -1.320 -1.265

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.21571.51381.51382.14332.14332.15002.15012.15002.1501
O21.21572.39252.39252.52882.52883.10353.10353.10353.1035
C31.51382.39252.56561.08793.48711.09231.09232.82252.8227
C41.51382.39252.56563.48711.08792.82252.82271.09231.0923
H52.14332.52881.08793.48714.27841.78401.78403.80513.8051
H62.14332.52883.48711.08794.27843.80513.80511.78401.7840
H72.15003.10351.09232.82251.78403.80511.75663.17092.6403
H82.15013.10351.09232.82271.78403.80511.75662.64033.1716
H92.15003.10352.82251.09233.80511.78403.17092.64031.7566
H102.15013.10352.82271.09233.80511.78402.64033.17161.7566

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.851 C1 C3 H7 110.124
C1 C3 H8 110.131 C1 C4 H6 109.851
C1 C4 H9 110.124 C1 C4 H10 110.131
O2 C1 C3 122.072 O2 C1 C4 122.072
C3 C1 C4 115.857 H5 C3 H7 109.820
H5 C3 H8 109.827 H6 C4 H9 109.820
H6 C4 H10 109.827 H7 C3 H8 107.046
H9 C4 H10 107.046
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability