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All results from a given calculation for CH3COCH2 (Acetonyl radical)

using model chemistry: QCISD(T)=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at QCISD(T)=FULL/6-31G*
 hartrees
Energy at 0K-191.945066
Energy at 298.15K-191.949703
HF Energy-191.342013
Nuclear repulsion energy111.362953
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(T)=FULL/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 A' 3288 3288        
2 A' 3177 3177        
3 A' 3174 3174        
4 A' 3055 3055        
5 A' 1638 1638        
6 A' 1519 1519        
7 A' 1491 1491        
8 A' 1437 1437        
9 A' 1301 1301        
10 A' 1081 1081        
11 A' 945 945        
12 A' 836 836        
13 A' 525 525        
14 A' 384 384        
15 A" 3123 3123        
16 A" 1521 1521        
17 A" 1048 1048        
18 A" 690 690        
19 A" 501 501        
20 A" 352 352        
21 A" 93 93        

Unscaled Zero Point Vibrational Energy (zpe) 15587.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15587.8 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 QCISD(T)=FULL/6-31G*
ABC
0.36053 0.30062 0.16914

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.144 0.000
O2 0.459 1.300 0.000
C3 -1.432 -0.073 0.000
C4 0.912 -1.071 0.000
H5 -2.093 0.790 0.000
H6 -1.865 -1.071 0.000
H7 1.953 -0.735 0.000
H8 0.728 -1.693 0.887
H9 0.728 -1.693 -0.887

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.24331.44871.51922.19052.22632.14202.16622.1662
O21.24332.33672.41342.60253.32002.52473.13303.1330
C31.44872.33672.54801.08671.08813.44972.84252.8425
C41.51922.41342.54803.53472.77751.09361.09891.0989
H52.19052.60251.08673.53471.87484.32423.86163.8616
H62.22633.32001.08812.77751.87483.83312.81072.8107
H72.14202.52473.44971.09364.32423.83311.79001.7900
H82.16623.13302.84251.09893.86162.81071.79001.7734
H92.16623.13302.84251.09893.86162.81071.79001.7734

picture of Acetonyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 118.841 C1 C3 H6 122.061
C1 C4 H7 109.040 C1 C4 H8 110.641
C1 C4 H9 110.641 O2 C1 C3 120.271
O2 C1 C4 121.444 C3 C1 C4 118.285
H5 C3 H6 119.098 H7 C4 H8 109.451
H7 C4 H9 109.451 H8 C4 H9 107.591
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability