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All results from a given calculation for CH3COCH3 (Acetone)

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-192.561876
Energy at 298.15K-192.567849
HF Energy-191.959952
Nuclear repulsion energy118.908030
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 QCISD/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 3189 3036 8.84      
2 A1 3072 2925 7.26      
3 A1 1826 1739 124.75      
4 A1 1523 1451 22.78      
5 A1 1441 1372 10.81      
6 A1 1112 1059 0.00      
7 A1 811 773 0.41      
8 A1 383 365 1.04      
9 A2 3133 2984 0.00      
10 A2 1516 1444 0.00      
11 A2 922 878 0.00      
12 A2 62 59 0.00      
13 B1 3139 2990 23.22      
14 B1 1536 1462 20.56      
15 B1 1153 1098 2.72      
16 B1 492 468 0.78      
17 B1 138 132 0.00      
18 B2 3187 3035 9.73      
19 B2 3066 2920 2.27      
20 B2 1517 1445 0.32      
21 B2 1447 1378 61.94      
22 B2 1284 1223 59.45      
23 B2 926 882 3.14      
24 B2 539 513 16.76      

Unscaled Zero Point Vibrational Energy (zpe) 18706.7 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 17814.4 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 QCISD/6-31G*
ABC
0.33538 0.28283 0.16277

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.182
O2 0.000 0.000 1.404
C3 0.000 1.291 -0.616
C4 0.000 -1.291 -0.616
H5 0.000 2.143 0.068
H6 0.000 -2.143 0.068
H7 0.884 1.337 -1.266
H8 -0.884 1.337 -1.266
H9 -0.884 -1.337 -1.266
H10 0.884 -1.337 -1.266

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10
C11.22271.51751.51752.14602.14602.15992.15992.15992.1599
O21.22272.39772.39772.52542.52543.11453.11453.11453.1145
C31.51752.39772.58151.09313.50131.09801.09802.84802.8480
C41.51752.39772.58153.50131.09312.84802.84801.09801.0980
H52.14602.52541.09313.50134.28591.79161.79163.83073.8307
H62.14602.52543.50131.09314.28593.83073.83071.79161.7916
H72.15993.11451.09802.84801.79163.83071.76823.20652.6749
H82.15993.11451.09802.84801.79163.83071.76822.67493.2065
H92.15993.11452.84801.09803.83071.79163.20652.67491.7682
H102.15993.11452.84801.09803.83071.79162.67493.20651.7682

picture of Acetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.504 C1 C3 H7 110.316
C1 C3 H8 110.316 C1 C4 H6 109.504
C1 C4 H9 110.316 C1 C4 H10 110.316
O2 C1 C3 121.724 O2 C1 C4 121.724
C3 C1 C4 116.552 H5 C3 H7 109.709
H5 C3 H8 109.709 H6 C4 H9 109.709
H6 C4 H10 109.709 H7 C3 H8 107.259
H9 C4 H10 107.259
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability