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All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: PBE1PBE/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 PBE1PBE/3-21G*
 hartrees
Energy at 0K-191.864147
Energy at 298.15K-191.870155
HF Energy-191.864147
Nuclear repulsion energy118.781410
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 PBE1PBE/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 3188 3060 3.88 69.05 0.62 0.76
2 A 3130 3004 0.00 7.62 0.75 0.86
3 A 3072 2948 2.71 179.29 0.01 0.02
4 A 1788 1716 93.00 3.50 0.48 0.65
5 A 1526 1464 0.00 38.70 0.75 0.86
6 A 1518 1457 32.64 38.60 0.74 0.85
7 A 1432 1375 32.96 3.90 0.65 0.79
8 A 1110 1065 0.24 4.36 0.56 0.72
9 A 930 893 0.00 3.07 0.75 0.86
10 A 783 751 0.61 10.96 0.17 0.29
11 A 385 369 1.05 0.29 0.39 0.56
12 A 68 66 0.00 0.08 0.75 0.86
13 B 3187 3059 9.00 49.37 0.75 0.86
14 B 3138 3012 10.09 98.59 0.75 0.86
15 B 3065 2942 0.25 0.24 0.75 0.86
16 B 1552 1490 33.98 0.34 0.75 0.86
17 B 1512 1451 1.19 1.09 0.75 0.86
18 B 1423 1366 67.62 7.86 0.75 0.86
19 B 1239 1189 101.87 0.00 0.75 0.86
20 B 1155 1108 9.57 0.00 0.75 0.86
21 B 909 872 6.72 2.63 0.75 0.86
22 B 514 493 12.27 2.08 0.75 0.86
23 B 513 492 0.18 1.28 0.75 0.86
24 B 154 148 0.67 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18644.5 cm-1
Scaled (by 0.9598) Zero Point Vibrational Energy (zpe) 17895.0 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 PBE1PBE/3-21G*
ABC
0.32579 0.28964 0.16267

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.195
O2 0.000 0.000 1.426
C3 0.000 1.274 -0.628
C4 0.000 -1.274 -0.628
H5 -0.000 2.141 0.035
H6 0.000 -2.141 0.035
H7 0.885 1.303 -1.276
H8 -0.885 1.303 -1.277
H9 -0.885 -1.303 -1.276
H10 0.885 -1.303 -1.277

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.23051.51701.51702.14722.14722.15592.15592.15592.1559
O21.23052.41712.41712.55302.55303.12773.12803.12773.1280
C31.51702.41712.54801.09213.47911.09741.09742.80122.8010
C41.51702.41712.54803.47911.09212.80122.80101.09741.0974
H52.14722.55301.09213.47914.28241.79061.79073.79073.7907
H62.14722.55303.47911.09214.28243.79073.79071.79061.7907
H72.15593.12771.09742.80121.79063.79071.77033.15152.6067
H82.15593.12801.09742.80101.79073.79071.77032.60673.1505
H92.15593.12772.80121.09743.79071.79063.15152.60671.7703
H102.15593.12802.80101.09743.79071.79072.60673.15051.7703

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.687 C1 C3 H7 110.058
C1 C3 H8 110.064 C1 C4 H6 109.687
C1 C4 H9 110.058 C1 C4 H10 110.064
O2 C1 C3 122.881 O2 C1 C4 122.881
C3 C1 C4 114.238 H5 C3 H7 109.735
H5 C3 H8 109.741 H6 C4 H9 109.735
H6 C4 H10 109.741 H7 C3 H8 107.528
H9 C4 H10 107.528
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.408      
2 O -0.440      
3 C -0.713      
4 C -0.713      
5 H 0.252      
6 H 0.252      
7 H 0.239      
8 H 0.239      
9 H 0.239      
10 H 0.239      


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 -2.809 2.809
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.117 0.000 0.000
y 0.000 -23.619 0.000
z 0.000 0.000 -28.227
Traceless
 xyz
x 1.806 0.000 0.000
y 0.000 2.553 0.000
z 0.000 0.000 -4.360
Polar
3z2-r2-8.719
x2-y2-0.498
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 4.893 0.000
z 0.000 0.000 5.354


<r2> (average value of r2) Å2
<r2> 82.138
(<r2>)1/2 9.063