return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-192.579913
Energy at 298.15K-192.585840
HF Energy-191.958821
Nuclear repulsion energy118.577055
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 MP4/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3181 3037        
2 A1 3061 2922        
3 A1 1761 1681        
4 A1 1517 1448        
5 A1 1428 1363        
6 A1 1100 1050        
7 A1 799 763        
8 A1 379 362        
9 A2 3127 2986        
10 A2 1511 1443        
11 A2 912 871        
12 A2 59 56        
13 B1 3133 2992        
14 B1 1531 1461        
15 B1 1141 1089        
16 B1 484 462        
17 B1 134 128        
18 B2 3180 3036        
19 B2 3056 2917        
20 B2 1512 1443        
21 B2 1432 1367        
22 B2 1269 1212        
23 B2 914 873        
24 B2 529 505        

Unscaled Zero Point Vibrational Energy (zpe) 18572.9 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 17733.4 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 MP4/6-31G*
ABC
0.33213 0.28243 0.16189

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.181
O2 0.000 0.000 1.412
C3 0.000 1.292 -0.620
C4 0.000 -1.292 -0.620
H5 0.000 2.145 0.065
H6 0.000 -2.145 0.065
H7 0.885 1.337 -1.270
H8 -0.885 1.337 -1.270
H9 -0.885 -1.337 -1.270
H10 0.885 -1.337 -1.270

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.23081.51991.51992.14852.14852.16262.16262.16262.1626
O21.23082.40762.40762.53322.53323.12483.12483.12483.1248
C31.51992.40762.58351.09433.50461.09901.09902.84912.8491
C41.51992.40762.58353.50461.09432.84912.84911.09901.0990
H52.14852.53321.09433.50464.29071.79391.79393.83323.8332
H62.14852.53323.50461.09434.29073.83323.83321.79391.7939
H72.16263.12481.09902.84911.79393.83321.76973.20692.6744
H82.16263.12481.09902.84911.79393.83321.76972.67443.2069
H92.16263.12482.84911.09903.83321.79393.20692.67441.7697
H102.16263.12482.84911.09903.83321.79392.67443.20691.7697

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.465 C1 C3 H7 110.300
C1 C3 H8 110.300 C1 C4 H6 109.465
C1 C4 H9 110.300 C1 C4 H10 110.300
O2 C1 C3 121.801 O2 C1 C4 121.801
C3 C1 C4 116.399 H5 C3 H7 109.750
H5 C3 H8 109.750 H6 C4 H9 109.750
H6 C4 H10 109.750 H7 C3 H8 107.247
H9 C4 H10 107.247
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability