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All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-193.082274
Energy at 298.15K-193.088092
Nuclear repulsion energy119.206438
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3184 3046 7.42      
2 A1 3062 2929 6.13      
3 A1 1841 1761 157.46      
4 A1 1493 1428 25.30      
5 A1 1403 1343 17.76      
6 A1 1091 1044 0.06      
7 A1 797 762 0.90      
8 A1 375 359 1.33      
9 A2 3122 2987 0.00      
10 A2 1488 1423 0.00      
11 A2 890 852 0.00      
12 A2 13 12 0.00      
13 B1 3129 2993 18.76      
14 B1 1511 1446 22.69      
15 B1 1127 1078 5.20      
16 B1 488 467 0.19      
17 B1 133 127 0.14      
18 B2 3183 3045 10.24      
19 B2 3056 2923 1.37      
20 B2 1483 1419 0.28      
21 B2 1409 1348 70.26      
22 B2 1250 1196 73.89      
23 B2 894 856 4.91      
24 B2 531 508 14.30      

Unscaled Zero Point Vibrational Energy (zpe) 18475.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 17675.6 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 B3PW91/6-31G*
ABC
0.33755 0.28366 0.16349

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.185
O2 0.000 0.000 1.399
C3 0.000 1.288 -0.614
C4 0.000 -1.288 -0.614
H5 0.000 2.144 0.064
H6 0.000 -2.144 0.064
H7 0.881 1.336 -1.266
H8 -0.881 1.336 -1.266
H9 -0.881 -1.336 -1.266
H10 0.881 -1.336 -1.266

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.21381.51601.51602.14762.14762.15992.15992.15992.1599
O21.21382.38982.38982.52572.52573.10833.10833.10833.1083
C31.51602.38982.57691.09173.49891.09711.09712.84372.8437
C41.51602.38982.57693.49891.09172.84372.84371.09711.0971
H52.14762.52571.09173.49894.28841.78861.78863.82803.8280
H62.14762.52573.49891.09174.28843.82803.82801.78861.7886
H72.15993.10831.09712.84371.78863.82801.76193.19982.6711
H82.15993.10831.09712.84371.78863.82801.76192.67113.1998
H92.15993.10832.84371.09713.82801.78863.19982.67111.7619
H102.15993.10832.84371.09713.82801.78862.67113.19981.7619

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.813 C1 C3 H7 110.470
C1 C3 H8 110.470 C1 C4 H6 109.813
C1 C4 H9 110.470 C1 C4 H10 110.470
O2 C1 C3 121.801 O2 C1 C4 121.801
C3 C1 C4 116.398 H5 C3 H7 109.601
H5 C3 H8 109.601 H6 C4 H9 109.601
H6 C4 H10 109.601 H7 C3 H8 106.837
H9 C4 H10 106.837
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.456     0.743
2 O -0.428     -0.498
3 C -0.599     -0.586
4 C -0.599     -0.586
5 H 0.206     0.156
6 H 0.206     0.156
7 H 0.190     0.154
8 H 0.190     0.154
9 H 0.190     0.154
10 H 0.190     0.154


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 -2.850 2.850
CHELPG        
AIM        
ESP 0.002 0.000 -2.873 2.873


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.769 0.000 0.000
y 0.000 -23.286 0.000
z 0.000 0.000 -28.021
Traceless
 xyz
x 1.885 0.000 0.000
y 0.000 2.610 0.000
z 0.000 0.000 -4.494
Polar
3z2-r2-8.989
x2-y2-0.483
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 81.787
(<r2>)1/2 9.044