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: B2PLYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/6-311G*
 hartrees
Energy at 0K-192.994081
Energy at 298.15K-192.999983
HF Energy-192.793711
Nuclear repulsion energy119.271801
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 B2PLYP/6-311G*
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 3176 3176 11.61 72.01 0.62 0.76
2 A 3119 3119 0.30 13.46 0.73 0.84
3 A 3063 3063 7.83 227.09 0.01 0.02
4 A 1791 1791 144.94 6.93 0.71 0.83
5 A 1504 1504 31.92 22.70 0.69 0.81
6 A 1497 1497 1.43 21.74 0.75 0.86
7 A 1416 1416 17.11 1.87 0.49 0.66
8 A 1101 1101 0.06 3.68 0.48 0.65
9 A 902 902 0.03 1.78 0.73 0.85
10 A 792 792 1.31 13.01 0.15 0.27
11 A 380 380 0.92 0.54 0.44 0.61
12 A 32 32 0.01 0.10 0.75 0.86
13 B 3175 3175 13.39 59.08 0.75 0.86
14 B 3126 3126 28.30 104.81 0.75 0.86
15 B 3057 3057 3.22 0.61 0.75 0.86
16 B 1520 1520 24.23 0.34 0.75 0.86
17 B 1496 1496 0.94 1.37 0.75 0.86
18 B 1418 1418 68.09 2.67 0.75 0.86
19 B 1252 1252 69.38 1.39 0.75 0.86
20 B 1137 1137 2.63 0.04 0.75 0.86
21 B 901 901 7.38 3.04 0.75 0.86
22 B 537 537 14.88 2.34 0.75 0.86
23 B 491 491 0.33 1.03 0.75 0.86
24 B 139 139 0.02 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18509.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18509.6 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 B2PLYP/6-311G*
ABC
0.33786 0.28349 0.16344

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.186
O2 0.000 0.000 1.398
C3 0.000 1.289 -0.615
C4 0.000 -1.289 -0.615
H5 0.070 2.140 0.061
H6 -0.070 -2.140 0.061
H7 0.834 1.310 -1.321
H8 -0.918 1.369 -1.203
H9 -0.834 -1.310 -1.321
H10 0.918 -1.369 -1.203

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.21261.51741.51742.14452.14452.16342.15552.16342.1555
O21.21262.39042.39042.52442.52443.13123.07993.13123.0799
C31.51742.39042.57851.08803.49541.09301.09352.81932.8731
C41.51742.39042.57853.49541.08802.81932.87311.09301.0935
H52.14452.52441.08803.49544.28161.78361.77963.82393.8245
H62.14452.52443.49541.08804.28163.82393.82451.78361.7796
H72.16343.13121.09302.81931.78363.82391.75683.10522.6823
H82.15553.07991.09352.87311.77963.82451.75682.68233.2962
H92.16343.13122.81931.09303.82391.78363.10522.68231.7568
H102.15553.07992.87311.09353.82451.77962.68233.29621.7568

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 110.893
C1 C3 H8 110.233 C1 C4 H6 109.687
C1 C4 H9 110.893 C1 C4 H10 110.233
O2 C1 C3 121.829 O2 C1 C4 121.829
C3 C1 C4 116.342 H5 C3 H7 109.724
H5 C3 H8 109.328 H6 C4 H9 109.724
H6 C4 H10 109.328 H7 C3 H8 106.926
H9 C4 H10 106.926
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.309      
2 O -0.288      
3 C -0.708      
4 C -0.708      
5 H 0.240      
6 H 0.240      
7 H 0.226      
8 H 0.230      
9 H 0.226      
10 H 0.230      


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 -2.791 2.791
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.392 -0.039 0.000
y -0.039 -24.291 0.000
z 0.000 0.000 -28.808
Traceless
 xyz
x 2.158 -0.039 0.000
y -0.039 2.309 0.000
z 0.000 0.000 -4.467
Polar
3z2-r2-8.933
x2-y2-0.101
xy-0.039
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.241 -0.008 0.000
y -0.008 5.776 0.000
z 0.000 0.000 5.989


<r2> (average value of r2) Å2
<r2> 82.269
(<r2>)1/2 9.070