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All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-192.092872
Energy at 298.15K-192.098876
HF Energy-192.092872
Nuclear repulsion energy118.399699
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 B3LYP/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 3161 3041 6.66 70.36 0.59 0.74
2 A 3100 2982 0.00 8.21 0.75 0.86
3 A 3055 2939 4.39 177.74 0.01 0.02
4 A 1758 1691 86.89 2.99 0.48 0.65
5 A 1533 1475 0.00 39.89 0.75 0.86
6 A 1524 1466 30.33 39.45 0.74 0.85
7 A 1435 1380 27.23 4.29 0.61 0.76
8 A 1109 1067 0.03 4.92 0.58 0.73
9 A 935 899 0.00 3.27 0.75 0.86
10 A 758 730 0.85 11.55 0.18 0.30
11 A 383 368 0.87 0.35 0.37 0.54
12 A 78 75 0.00 0.07 0.75 0.86
13 B 3160 3040 12.26 50.88 0.75 0.86
14 B 3109 2990 16.59 99.23 0.75 0.86
15 B 3048 2932 0.68 0.46 0.75 0.86
16 B 1557 1498 27.50 0.35 0.75 0.86
17 B 1520 1462 0.93 1.15 0.75 0.86
18 B 1426 1371 47.56 8.26 0.75 0.86
19 B 1221 1174 99.85 0.02 0.75 0.86
20 B 1153 1110 7.16 0.01 0.75 0.86
21 B 897 863 11.76 2.82 0.75 0.86
22 B 511 491 12.08 2.17 0.75 0.86
23 B 507 488 0.06 1.34 0.75 0.86
24 B 153 148 0.55 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18544.9 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 17840.2 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 B3LYP/3-21G*
ABC
0.32467 0.28618 0.16129

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.196
O2 0.000 0.000 1.428
C3 0.000 1.283 -0.630
C4 0.000 -1.283 -0.630
H5 0.001 2.147 0.036
H6 -0.001 -2.147 0.036
H7 0.885 1.314 -1.278
H8 -0.885 1.315 -1.277
H9 -0.885 -1.314 -1.278
H10 0.885 -1.315 -1.277

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.23241.52561.52562.15302.15302.16362.16362.16362.1636
O21.23242.42532.42532.55862.55863.13563.13543.13563.1354
C31.52562.42532.56561.09153.49411.09691.09692.81892.8193
C41.52562.42532.56563.49411.09152.81892.81931.09691.0969
H52.15302.55861.09153.49414.29411.78971.78983.80673.8068
H62.15302.55863.49411.09154.29413.80673.80681.78971.7898
H72.16363.13561.09692.81891.78973.80671.76973.16832.6287
H82.16363.13541.09692.81931.78983.80681.76972.62873.1695
H92.16363.13562.81891.09693.80671.78973.16832.62871.7697
H102.16363.13542.81931.09693.80681.78982.62873.16951.7697

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.586 C1 C3 H7 110.101
C1 C3 H8 110.105 C1 C4 H6 109.586
C1 C4 H9 110.101 C1 C4 H10 110.105
O2 C1 C3 122.772 O2 C1 C4 122.772
C3 C1 C4 114.456 H5 C3 H7 109.734
H5 C3 H8 109.742 H6 C4 H9 109.734
H6 C4 H10 109.742 H7 C3 H8 107.548
H9 C4 H10 107.548
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.405      
2 O -0.430      
3 C -0.634      
4 C -0.634      
5 H 0.223      
6 H 0.223      
7 H 0.211      
8 H 0.212      
9 H 0.211      
10 H 0.212      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.712 2.712
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.127 0.000 0.000
y 0.000 -23.760 0.000
z 0.000 0.000 -28.242
Traceless
 xyz
x 1.874 0.000 0.000
y 0.000 2.425 0.000
z 0.000 0.000 -4.299
Polar
3z2-r2-8.597
x2-y2-0.367
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.623 0.000 0.000
y 0.000 4.943 0.000
z 0.000 0.000 5.356


<r2> (average value of r2) Å2
<r2> 82.701
(<r2>)1/2 9.094