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

using model chemistry: ROMP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at ROMP2/6-311G**
 hartrees
Energy at 0K-191.988316
Energy at 298.15K-191.992939
HF Energy-191.380265
Nuclear repulsion energy111.687870
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 ROMP2/6-311G**
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' 3328 3328        
2 A' 3206 3206        
3 A' 3200 3200        
4 A' 3080 3080        
5 A' 1667 1667        
6 A' 1494 1494        
7 A' 1481 1481        
8 A' 1405 1405        
9 A' 1280 1280        
10 A' 1075 1075        
11 A' 927 927        
12 A' 832 832        
13 A' 525 525        
14 A' 382 382        
15 A" 3163 3163        
16 A" 1497 1497        
17 A" 1030 1030        
18 A" 704 704        
19 A" 512 512        
20 A" 353 353        
21 A" 66 66        

Unscaled Zero Point Vibrational Energy (zpe) 15603.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15603.6 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 ROMP2/6-311G**
ABC
0.36094 0.30281 0.16988

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.152 0.000
O2 0.404 1.314 0.000
C3 -1.427 -0.137 0.000
C4 0.952 -1.030 0.000
H5 -2.119 0.696 0.000
H6 -1.808 -1.151 0.000
H7 1.979 -0.665 0.000
H8 0.783 -1.654 0.883
H9 0.783 -1.654 -0.883

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.23041.45591.51792.18782.22872.14092.15752.1575
O21.23042.33622.40762.59773.31222.52923.12003.1200
C31.45592.33622.54121.08291.08353.44662.82232.8223
C41.51792.40762.54123.52302.76271.09001.09431.0943
H52.18782.59771.08293.52301.87324.31813.83723.8372
H62.22873.31221.08352.76271.87323.81802.78302.7830
H72.14092.52923.44661.09004.31813.81801.78581.7858
H82.15753.12002.82231.09433.83722.78301.78581.7660
H92.15753.12002.82231.09433.83722.78301.78581.7660

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 118.286 C1 C3 H6 122.030
C1 C4 H7 109.258 C1 C4 H8 110.308
C1 C4 H9 110.308 O2 C1 C3 120.611
O2 C1 C4 121.987 C3 C1 C4 117.402
H5 C3 H6 119.685 H7 C4 H8 109.680
H7 C4 H9 109.680 H8 C4 H9 107.586
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.270      
2 O -0.431      
3 C -0.207      
4 C -0.266      
5 H 0.150      
6 H 0.127      
7 H 0.133      
8 H 0.112      
9 H 0.112      


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> 77.145
(<r2>)1/2 8.783