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All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-191.848044
Energy at 298.15K-191.853942
HF Energy-191.848044
Nuclear repulsion energy117.713635
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 PBEPBE/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 3101 3073 5.63 71.51 0.60 0.75
2 A 3039 3012 0.00 9.41 0.75 0.86
3 A 2985 2958 3.60 185.14 0.01 0.01
4 A 1701 1685 77.96 2.41 0.34 0.50
5 A 1483 1469 0.00 40.21 0.75 0.86
6 A 1474 1461 32.06 39.29 0.74 0.85
7 A 1378 1366 31.72 5.77 0.55 0.71
8 A 1070 1060 0.21 4.60 0.54 0.71
9 A 894 886 0.00 3.04 0.75 0.86
10 A 748 741 1.25 10.44 0.17 0.29
11 A 373 370 0.88 0.41 0.40 0.57
12 A 64 64 0.00 0.09 0.75 0.86
13 B 3100 3072 12.24 51.22 0.75 0.86
14 B 3047 3020 13.14 99.18 0.75 0.86
15 B 2978 2951 0.50 0.88 0.75 0.86
16 B 1508 1495 29.71 0.27 0.75 0.86
17 B 1469 1456 0.92 1.55 0.75 0.86
18 B 1368 1356 55.97 9.95 0.75 0.86
19 B 1186 1175 102.90 0.02 0.75 0.86
20 B 1110 1100 8.23 0.02 0.75 0.86
21 B 863 855 12.00 2.45 0.75 0.86
22 B 493 489 9.40 2.22 0.75 0.86
23 B 493 489 0.63 1.16 0.75 0.86
24 B 149 147 1.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18037.7 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 17873.6 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 PBEPBE/3-21G
ABC
0.31870 0.28544 0.15971

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.198
O2 0.000 0.000 1.442
C3 0.000 1.284 -0.636
C4 0.000 -1.284 -0.636
H5 -0.000 2.158 0.031
H6 0.000 -2.158 0.031
H7 0.892 1.311 -1.289
H8 -0.891 1.311 -1.290
H9 -0.892 -1.311 -1.289
H10 0.891 -1.311 -1.290

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.24341.53081.53082.16472.16472.17422.17432.17422.1743
O21.24342.44212.44212.57822.57823.15803.15843.15803.1584
C31.53082.44212.56721.10013.50591.10591.10592.82012.8199
C41.53082.44212.56723.50591.10012.82012.81991.10591.1059
H52.16472.57821.10013.50594.31651.80511.80523.81763.8176
H62.16472.57823.50591.10014.31653.81763.81761.80511.8052
H72.17423.15801.10592.82011.80513.81761.78263.17062.6214
H82.17433.15841.10592.81991.80523.81761.78262.62143.1695
H92.17423.15802.82011.10593.81761.80513.17062.62141.7826
H102.17433.15842.81991.10593.81761.80522.62143.16951.7826

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.646 C1 C3 H7 110.044
C1 C3 H8 110.057 C1 C4 H6 109.646
C1 C4 H9 110.044 C1 C4 H10 110.057
O2 C1 C3 123.019 O2 C1 C4 123.019
C3 C1 C4 113.962 H5 C3 H7 109.823
H5 C3 H8 109.836 H6 C4 H9 109.823
H6 C4 H10 109.836 H7 C3 H8 107.405
H9 C4 H10 107.405
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.373      
2 O -0.400      
3 C -0.673      
4 C -0.673      
5 H 0.235      
6 H 0.235      
7 H 0.225      
8 H 0.225      
9 H 0.225      
10 H 0.225      


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 -2.631 2.631
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.158 0.001 0.000
y 0.001 -23.733 0.000
z 0.000 0.000 -27.934
Traceless
 xyz
x 1.676 0.001 0.000
y 0.001 2.313 0.000
z 0.000 0.000 -3.988
Polar
3z2-r2-7.977
x2-y2-0.425
xy0.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.699 0.000 0.000
y 0.000 5.188 0.000
z 0.000 0.000 5.515


<r2> (average value of r2) Å2
<r2> 83.296
(<r2>)1/2 9.127