return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: wB97X-D/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 wB97X-D/CEP-121G*
 hartrees
Energy at 0K-36.560377
Energy at 298.15K-36.566353
HF Energy-36.560377
Nuclear repulsion energy66.750080
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 wB97X-D/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 3166 3166 17.93 70.18 0.62 0.76
2 A 3115 3115 1.83 21.53 0.69 0.82
3 A 3052 3052 10.37 253.80 0.01 0.02
4 A 1808 1808 195.10 9.23 0.66 0.80
5 A 1488 1488 23.75 20.30 0.69 0.82
6 A 1481 1481 7.49 20.19 0.75 0.85
7 A 1404 1404 13.74 1.77 0.50 0.67
8 A 1082 1082 0.13 3.99 0.53 0.69
9 A 889 889 0.24 2.67 0.65 0.79
10 A 789 789 1.19 15.09 0.14 0.24
11 A 372 372 1.19 0.39 0.42 0.60
12 A 95 95 0.02 0.28 0.74 0.85
13 B 3165 3165 17.86 52.77 0.75 0.86
14 B 3121 3121 38.39 88.28 0.75 0.86
15 B 3047 3047 4.80 0.47 0.75 0.86
16 B 1503 1503 23.49 0.83 0.75 0.86
17 B 1481 1481 1.27 2.25 0.75 0.86
18 B 1415 1415 73.56 1.07 0.75 0.86
19 B 1243 1243 68.32 1.81 0.75 0.86
20 B 1120 1120 2.37 0.08 0.75 0.86
21 B 898 898 5.77 3.85 0.75 0.86
22 B 531 531 14.95 2.00 0.75 0.86
23 B 482 482 0.79 1.14 0.75 0.86
24 B 133 133 0.09 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18440.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18440.4 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 wB97X-D/CEP-121G*
ABC
0.33447 0.28084 0.16186

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-121G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.187
O2 0.000 0.000 1.406
C3 0.000 1.296 -0.618
C4 0.000 -1.296 -0.618
H5 0.178 2.147 0.043
H6 -0.178 -2.147 0.043
H7 0.759 1.265 -1.409
H8 -0.974 1.418 -1.109
H9 -0.759 -1.265 -1.409
H10 0.974 -1.418 -1.109

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.21831.52591.52592.15892.15892.17382.15462.17382.1546
O21.21832.40322.40322.54862.54863.17803.04723.17803.0472
C31.52592.40322.59221.09223.51031.09671.09802.78612.9256
C41.52592.40322.59223.51031.09222.78612.92561.09671.0980
H52.15892.54861.09223.51034.30811.79551.78533.82493.8304
H62.15892.54863.51031.09224.30813.82493.83041.79551.7853
H72.17383.17801.09672.78611.79553.82491.76592.95112.7090
H82.15463.04721.09802.92561.78533.83041.76592.70903.4417
H92.17383.17802.78611.09673.82491.79552.95112.70901.7659
H102.15463.04722.92561.09803.83041.78532.70903.44171.7659

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.986 C1 C3 H7 110.904
C1 C3 H8 109.312 C1 C4 H6 109.986
C1 C4 H9 110.904 C1 C4 H10 109.312
O2 C1 C3 121.858 O2 C1 C4 121.858
C3 C1 C4 116.285 H5 C3 H7 110.224
H5 C3 H8 109.205 H6 C4 H9 110.224
H6 C4 H10 109.205 H7 C3 H8 107.147
H9 C4 H10 107.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.310      
2 O -0.282      
3 C -0.608      
4 C -0.608      
5 H 0.213      
6 H 0.213      
7 H 0.186      
8 H 0.195      
9 H 0.186      
10 H 0.195      


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 -3.053 3.053
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.937 -0.091 0.000
y -0.091 -23.378 0.000
z 0.000 0.000 -28.710
Traceless
 xyz
x 2.107 -0.091 0.000
y -0.091 2.945 0.000
z 0.000 0.000 -5.052
Polar
3z2-r2-10.104
x2-y2-0.559
xy-0.091
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.522 -0.026 0.000
y -0.026 5.867 0.000
z 0.000 0.000 6.299


<r2> (average value of r2) Å2
<r2> 70.310
(<r2>)1/2 8.385