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All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: HF/CEP-121G

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-121G
 hartrees
Energy at 0K-35.572705
Energy at 298.15K-35.578790
HF Energy-35.572705
Nuclear repulsion energy66.859172
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-121G
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 3294 3006 18.24 71.58 0.63 0.77
2 A 3234 2951 0.00 7.62 0.75 0.86
3 A 3163 2886 16.70 271.31 0.01 0.03
4 A 1860 1697 204.07 12.17 0.61 0.76
5 A 1611 1470 46.82 29.56 0.72 0.84
6 A 1607 1466 0.00 25.39 0.75 0.86
7 A 1553 1417 8.76 0.85 0.46 0.63
8 A 1194 1089 1.85 6.82 0.64 0.78
9 A 1009 921 0.00 4.18 0.75 0.86
10 A 849 774 0.26 18.34 0.14 0.24
11 A 398 363 1.64 0.45 0.37 0.55
12 A 20 18 0.00 0.11 0.75 0.86
13 B 3291 3003 22.04 51.54 0.75 0.86
14 B 3243 2959 57.30 108.19 0.75 0.86
15 B 3156 2879 7.88 0.02 0.75 0.86
16 B 1625 1483 30.79 0.30 0.75 0.86
17 B 1607 1466 0.48 1.06 0.75 0.86
18 B 1551 1415 53.40 1.78 0.75 0.86
19 B 1373 1253 70.13 0.94 0.75 0.86
20 B 1246 1137 2.71 0.16 0.75 0.86
21 B 1013 924 0.88 5.02 0.75 0.86
22 B 562 513 25.65 2.32 0.75 0.86
23 B 527 481 2.40 2.49 0.75 0.86
24 B 143 130 0.09 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19563.2 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 17851.4 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-121G
ABC
0.33749 0.27943 0.16195

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.172
O2 0.000 0.000 1.403
C3 0.000 1.301 -0.614
C4 0.000 -1.301 -0.614
H5 -0.002 2.141 0.066
H6 0.002 -2.141 0.066
H7 0.877 1.355 -1.254
H8 -0.875 1.354 -1.256
H9 -0.877 -1.355 -1.254
H10 0.875 -1.354 -1.256

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.23141.51971.51972.14382.14382.15332.15352.15332.1535
O21.23142.40032.40032.52452.52453.10873.10983.10873.1098
C31.51972.40032.60131.08123.50841.08671.08672.86892.8675
C41.51972.40032.60133.50841.08122.86892.86751.08671.0867
H52.14382.52451.08123.50844.28241.76961.76963.83813.8380
H62.14382.52453.50841.08124.28243.83813.83801.76961.7696
H72.15333.10871.08672.86891.76963.83811.75223.22822.7085
H82.15353.10981.08672.86751.76963.83801.75222.70853.2236
H92.15333.10872.86891.08673.83811.76963.22822.70851.7522
H102.15353.10982.86751.08673.83801.76962.70853.22361.7522

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.880 C1 C3 H7 110.311
C1 C3 H8 110.321 C1 C4 H6 109.880
C1 C4 H9 110.311 C1 C4 H10 110.321
O2 C1 C3 121.144 O2 C1 C4 121.144
C3 C1 C4 117.712 H5 C3 H7 109.417
H5 C3 H8 109.424 H6 C4 H9 109.417
H6 C4 H10 109.424 H7 C3 H8 107.446
H9 C4 H10 107.446
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.353      
2 O -0.299      
3 C -0.550      
4 C -0.550      
5 H 0.195      
6 H 0.195      
7 H 0.164      
8 H 0.164      
9 H 0.164      
10 H 0.164      


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 -3.798 3.798
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.378 0.001 0.000
y 0.001 -23.500 0.000
z 0.000 0.000 -30.564
Traceless
 xyz
x 2.654 0.001 0.000
y 0.001 3.971 0.000
z 0.000 0.000 -6.626
Polar
3z2-r2-13.252
x2-y2-0.878
xy0.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.150 0.000 0.000
y 0.000 5.008 0.000
z 0.000 0.000 6.038


<r2> (average value of r2) Å2
<r2> 70.698
(<r2>)1/2 8.408