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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-193.090314
Energy at 298.15K-193.096147
Nuclear repulsion energy119.258676
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
4/u)
Dep P Dep U
1 A1 3184 3051 6.80      
2 A1 3058 2931 5.69      
3 A1 1838 1761 158.35      
4 A1 1474 1413 23.20      
5 A1 1386 1329 17.85      
6 A1 1081 1036 0.12      
7 A1 795 762 0.89      
8 A1 375 360 1.42      
9 A2 3122 2992 0.00      
10 A2 1472 1410 0.00      
11 A2 880 843 0.00      
12 A2 21 20 0.00      
13 B1 3129 2998 17.50      
14 B1 1495 1433 21.75      
15 B1 1116 1070 5.01      
16 B1 487 467 0.17      
17 B1 133 127 0.14      
18 B2 3183 3050 9.58      
19 B2 3052 2925 1.25      
20 B2 1465 1404 0.27      
21 B2 1395 1337 75.16      
22 B2 1241 1190 69.88      
23 B2 887 850 4.69      
24 B2 530 508 14.41      

Unscaled Zero Point Vibrational Energy (zpe) 18398.3 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 17632.9 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
0.33776 0.28398 0.16361

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 2.143 0.063
H6 0.000 -2.143 0.063
H7 0.880 1.334 -1.266
H8 -0.880 1.334 -1.266
H9 -0.880 -1.334 -1.266
H10 0.880 -1.334 -1.266

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.21421.51521.51522.14642.14642.15802.15802.15802.1580
O21.21422.38922.38922.52502.52503.10693.10693.10693.1069
C31.51522.38922.57581.09063.49701.09601.09602.84162.8416
C41.51522.38922.57583.49701.09062.84162.84161.09601.0960
H52.14642.52501.09063.49704.28601.78721.78723.82513.8251
H62.14642.52503.49701.09064.28603.82513.82511.78721.7872
H72.15803.10691.09602.84161.78723.82511.75953.19642.6686
H82.15803.10691.09602.84161.78723.82511.75952.66863.1964
H92.15803.10692.84161.09603.82511.78723.19642.66861.7595
H102.15803.10692.84161.09603.82511.78722.66863.19641.7595

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.845 C1 C3 H7 110.447
C1 C3 H8 110.447 C1 C4 H6 109.845
C1 C4 H9 110.447 C1 C4 H10 110.447
O2 C1 C3 121.787 O2 C1 C4 121.787
C3 C1 C4 116.427 H5 C3 H7 109.638
H5 C3 H8 109.638 H6 C4 H9 109.638
H6 C4 H10 109.638 H7 C3 H8 106.775
H9 C4 H10 106.775
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 0.424      
2 O -0.430      
3 C -0.464      
4 C -0.464      
5 H 0.166      
6 H 0.166      
7 H 0.151      
8 H 0.151      
9 H 0.151      
10 H 0.151      


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 -2.865 2.865
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.784 0.000 0.000
y 0.000 -23.201 0.000
z 0.000 0.000 -27.997
Traceless
 xyz
x 1.816 0.000 0.000
y 0.000 2.689 0.000
z 0.000 0.000 -4.505
Polar
3z2-r2-9.009
x2-y2-0.582
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> 81.705
(<r2>)1/2 9.039