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All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: HF/CEP-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 HF/CEP-31G*
 hartrees
Energy at 0K-35.654195
Energy at 298.15K-35.660283
HF Energy-35.654195
Nuclear repulsion energy66.983637
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 HF/CEP-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 A 3342 3001 29.78 80.03 0.59 0.74
2 A 3287 2952 0.00 6.04 0.75 0.86
3 A 3233 2903 22.09 279.26 0.02 0.04
4 A 1996 1792 285.11 11.52 0.60 0.75
5 A 1598 1435 0.45 25.83 0.75 0.86
6 A 1597 1435 24.47 22.67 0.74 0.85
7 A 1530 1374 5.20 5.48 0.20 0.33
8 A 1177 1057 0.70 7.59 0.72 0.84
9 A 968 870 0.00 8.74 0.75 0.86
10 A 848 762 0.00 16.12 0.17 0.29
11 A 391 351 1.18 0.38 0.58 0.73
12 A 56 51 0.00 0.12 0.75 0.86
13 B 3339 2999 27.44 52.90 0.75 0.86
14 B 3296 2960 78.00 108.08 0.75 0.86
15 B 3226 2897 11.39 0.71 0.75 0.86
16 B 1617 1452 21.68 0.68 0.75 0.86
17 B 1591 1428 0.22 0.58 0.75 0.86
18 B 1550 1392 43.20 0.35 0.75 0.86
19 B 1343 1206 70.44 1.15 0.75 0.86
20 B 1223 1098 2.17 0.12 0.75 0.86
21 B 975 875 2.80 6.16 0.75 0.86
22 B 561 504 23.85 1.83 0.75 0.86
23 B 525 471 3.44 1.00 0.75 0.86
24 B 145 130 0.27 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19706.5 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 17696.4 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 HF/CEP-31G*
ABC
0.33856 0.28018 0.16254

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.191
O2 0.000 0.000 1.396
C3 0.000 1.299 -0.615
C4 0.000 -1.299 -0.615
H5 -0.001 2.153 0.058
H6 0.001 -2.153 0.058
H7 0.881 1.337 -1.259
H8 -0.880 1.337 -1.261
H9 -0.881 -1.337 -1.259
H10 0.880 -1.337 -1.261

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.20481.52871.52872.15672.15672.16022.16032.16022.1603
O21.20482.39392.39392.53452.53453.10043.10083.10043.1008
C31.52872.39392.59801.08693.51661.09181.09182.85302.8525
C41.52872.39392.59803.51661.08692.85302.85251.09181.0918
H52.15672.53451.08693.51664.30521.78221.78233.83243.8324
H62.15672.53453.51661.08694.30523.83243.83241.78221.7823
H72.16023.10041.09182.85301.78223.83241.76063.20212.6737
H82.16033.10081.09182.85251.78233.83241.76062.67373.2005
H92.16023.10042.85301.09183.83241.78223.20212.67371.7606
H102.16033.10082.85251.09183.83241.78232.67373.20051.7606

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.933 C1 C3 H7 109.922
C1 C3 H8 109.929 C1 C4 H6 109.933
C1 C4 H9 109.922 C1 C4 H10 109.929
O2 C1 C3 121.819 O2 C1 C4 121.819
C3 C1 C4 116.363 H5 C3 H7 109.775
H5 C3 H8 109.778 H6 C4 H9 109.775
H6 C4 H10 109.778 H7 C3 H8 107.468
H9 C4 H10 107.468
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.040      
2 O -0.196      
3 C -0.264      
4 C -0.264      
5 H 0.166      
6 H 0.166      
7 H 0.108      
8 H 0.108      
9 H 0.108      
10 H 0.108      


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 -3.305 3.305
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.934 0.000 0.000
y 0.000 -23.619 0.000
z 0.000 0.000 -29.397
Traceless
 xyz
x 2.574 0.000 0.000
y 0.000 3.047 0.000
z 0.000 0.000 -5.621
Polar
3z2-r2-11.241
x2-y2-0.315
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.826 0.000 0.000
y 0.000 4.882 0.000
z 0.000 0.000 5.579


<r2> (average value of r2) Å2
<r2> 70.252
(<r2>)1/2 8.382