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

using model chemistry: ROMP2/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at ROMP2/TZVP
 hartrees
Energy at 0K-192.005220
Energy at 298.15K 
HF Energy-191.396562
Nuclear repulsion energy111.918799
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 ROMP2/TZVP
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' 3343 3343        
2 A' 3216 3216        
3 A' 3213 3213        
4 A' 3089 3089        
5 A' 1637 1637        
6 A' 1505 1505        
7 A' 1491 1491        
8 A' 1419 1419        
9 A' 1287 1287        
10 A' 1083 1083        
11 A' 935 935        
12 A' 834 834        
13 A' 531 531        
14 A' 389 389        
15 A" 3172 3172        
16 A" 1491 1491        
17 A" 1030 1030        
18 A" 627 627        
19 A" 501 501        
20 A" 322 322        
21 A" 21i 21i        

Unscaled Zero Point Vibrational Energy (zpe) 15546.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15546.1 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 ROMP2/TZVP
ABC
0.36228 0.30458 0.17071

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.148 0.000
O2 0.431 1.305 0.000
C3 -1.424 -0.107 0.000
C4 0.928 -1.046 0.000
H5 -2.100 0.735 0.000
H6 -1.822 -1.111 0.000
H7 1.959 -0.704 0.000
H8 0.749 -1.665 0.881
H9 0.749 -1.665 -0.881

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.23451.44701.51242.18082.21502.13612.15062.1506
O21.23452.33142.40342.59473.30362.52403.11453.1145
C31.44702.33142.53261.07951.08003.43552.81552.8155
C41.51242.40342.53263.51302.75071.08681.09101.0910
H52.18082.59471.07953.51301.86644.30673.82813.8281
H62.21503.30361.08002.75071.86643.80322.77392.7739
H72.13612.52403.43551.08684.30673.80321.77881.7788
H82.15063.11452.81551.09103.82812.77391.77881.7611
H92.15063.11452.81551.09103.82812.77391.77881.7611

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 118.626 C1 C3 H6 121.778
C1 C4 H7 109.447 C1 C4 H8 110.343
C1 C4 H9 110.343 O2 C1 C3 120.576
O2 C1 C4 121.748 C3 C1 C4 117.676
H5 C3 H6 119.596 H7 C4 H8 109.526
H7 C4 H9 109.526 H8 C4 H9 107.629
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.333      
2 O -0.393      
3 C -0.241      
4 C -0.305      
5 H 0.141      
6 H 0.133      
7 H 0.132      
8 H 0.100      
9 H 0.100      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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> 76.925
(<r2>)1/2 8.771