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All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: B2PLYP/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 B2PLYP/3-21G
 hartrees
Energy at 0K-191.816413
Energy at 298.15K-191.822482
HF Energy-191.681083
Nuclear repulsion energy118.254849
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/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 3185 3185 6.54 66.39 0.62 0.77
2 A 3132 3132 0.00 7.27 0.75 0.86
3 A 3080 3080 4.19 171.38 0.01 0.03
4 A 1722 1722 62.75 1.93 0.58 0.73
5 A 1555 1555 0.00 39.81 0.75 0.86
6 A 1544 1544 33.02 40.13 0.74 0.85
7 A 1455 1455 23.86 3.07 0.65 0.79
8 A 1117 1117 0.00 5.57 0.60 0.75
9 A 952 952 0.00 3.62 0.75 0.86
10 A 758 758 0.87 12.71 0.17 0.29
11 A 383 383 0.67 0.30 0.41 0.58
12 A 94 94 0.00 0.06 0.75 0.86
13 B 3184 3184 11.28 49.35 0.75 0.86
14 B 3139 3139 16.32 96.69 0.75 0.86
15 B 3074 3074 1.03 0.07 0.75 0.86
16 B 1577 1577 26.51 0.39 0.75 0.86
17 B 1544 1544 0.86 1.06 0.75 0.86
18 B 1445 1445 43.97 7.16 0.75 0.86
19 B 1232 1232 95.29 0.01 0.75 0.86
20 B 1168 1168 5.75 0.02 0.75 0.86
21 B 908 908 11.44 3.55 0.75 0.86
22 B 511 511 12.23 2.30 0.75 0.86
23 B 508 508 0.01 1.38 0.75 0.86
24 B 160 160 0.40 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18712.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18712.8 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/3-21G
ABC
0.32333 0.28586 0.16085

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.193
O2 0.000 0.000 1.432
C3 0.000 1.284 -0.632
C4 0.000 -1.284 -0.632
H5 0.000 2.144 0.038
H6 -0.000 -2.144 0.038
H7 0.884 1.316 -1.277
H8 -0.885 1.317 -1.276
H9 -0.884 -1.316 -1.277
H10 0.885 -1.317 -1.276

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.23931.52611.52612.14962.14962.16212.16202.16212.1620
O21.23932.43092.43092.55762.55763.13903.13853.13903.1385
C31.52612.43092.56791.09013.49281.09481.09492.82112.8215
C41.52612.43092.56793.49281.09012.82112.82151.09481.0949
H52.14962.55761.09013.49284.28801.78731.78723.80583.8058
H62.14962.55763.49281.09014.28803.80583.80581.78731.7872
H72.16213.13901.09482.82111.78733.80581.76913.17132.6329
H82.16203.13851.09492.82151.78723.80581.76912.63293.1728
H92.16213.13902.82111.09483.80581.78733.17132.63291.7691
H102.16203.13852.82151.09493.80581.78722.63293.17281.7691

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.367 C1 C3 H7 110.071
C1 C3 H8 110.062 C1 C4 H6 109.367
C1 C4 H9 110.071 C1 C4 H10 110.062
O2 C1 C3 122.721 O2 C1 C4 122.721
C3 C1 C4 114.558 H5 C3 H7 109.771
H5 C3 H8 109.763 H6 C4 H9 109.771
H6 C4 H10 109.763 H7 C3 H8 107.788
H9 C4 H10 107.788
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.408      
2 O -0.427      
3 C -0.634      
4 C -0.634      
5 H 0.223      
6 H 0.223      
7 H 0.210      
8 H 0.210      
9 H 0.210      
10 H 0.210      


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 -2.662 2.662
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.333 -0.001 0.000
y -0.001 -24.098 0.000
z 0.000 0.000 -28.497
Traceless
 xyz
x 1.964 -0.001 0.000
y -0.001 2.317 0.000
z 0.000 0.000 -4.281
Polar
3z2-r2-8.563
x2-y2-0.236
xy-0.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.601 -0.000 0.000
y -0.000 4.847 0.000
z 0.000 0.000 5.321


<r2> (average value of r2) Å2
<r2> 82.995
(<r2>)1/2 9.110