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All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: QCISD/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 QCISD/6-31G**
 hartrees
Energy at 0K-192.610172
Energy at 298.15K-192.616131
Nuclear repulsion energy119.105897
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 QCISD/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3236 3046 10.25      
2 A1 3111 2929 8.19      
3 A1 1828 1721 122.69      
4 A1 1531 1441 18.98      
5 A1 1444 1359 8.01      
6 A1 1114 1048 0.07      
7 A1 811 764 0.48      
8 A1 381 358 0.85      
9 A2 3179 2993 0.00      
10 A2 1526 1437 0.00      
11 A2 920 866 0.00      
12 A2 52 49 0.00      
13 B1 3185 2999 26.45      
14 B1 1546 1455 16.21      
15 B1 1151 1083 1.58      
16 B1 489 460 1.15      
17 B1 136 128 0.00      
18 B2 3234 3045 10.81      
19 B2 3106 2924 2.81      
20 B2 1525 1436 0.14      
21 B2 1450 1365 49.86      
22 B2 1284 1208 61.54      
23 B2 926 872 4.11      
24 B2 537 506 17.16      

Unscaled Zero Point Vibrational Energy (zpe) 18850.4 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 17745.7 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 QCISD/6-31G**
ABC
0.33600 0.28363 0.16308

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

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability