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

using model chemistry: ROMP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at ROMP2/6-31+G**
 hartrees
Energy at 0K-191.926107
Energy at 298.15K-191.930624
HF Energy-191.344361
Nuclear repulsion energy111.596759
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 ROMP2/6-31+G**
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' 3381 3381        
2 A' 3254 3254        
3 A' 3250 3250        
4 A' 3121 3121        
5 A' 1636 1636        
6 A' 1523 1523        
7 A' 1509 1509        
8 A' 1436 1436        
9 A' 1306 1306        
10 A' 1089 1089        
11 A' 948 948        
12 A' 844 844        
13 A' 526 526        
14 A' 388 388        
15 A" 3209 3209        
16 A" 1518 1518        
17 A" 1041 1041        
18 A" 698 698        
19 A" 510 510        
20 A" 342 342        
21 A" 15 15        

Unscaled Zero Point Vibrational Energy (zpe) 15772.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15772.1 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 ROMP2/6-31+G**
ABC
0.36075 0.30259 0.16974

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.142 0.000
O2 0.448 1.304 0.000
C3 -1.430 -0.087 0.000
C4 0.918 -1.060 0.000
H5 -2.092 0.765 0.000
H6 -1.846 -1.084 0.000
H7 1.951 -0.723 0.000
H8 0.735 -1.678 0.880
H9 0.735 -1.678 -0.880

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.24591.44841.51272.18282.21562.13402.15072.1507
O21.24592.33772.41072.59683.31152.52313.12223.1222
C31.44842.33772.54231.07911.08003.44062.82732.8273
C41.51272.41072.54233.52062.76411.08651.09081.0908
H52.18282.59681.07913.52061.86574.30813.83873.8387
H62.21563.31151.08002.76411.86573.81392.79072.7907
H72.13402.52313.44061.08654.30813.81391.77921.7792
H82.15073.12222.82731.09083.83872.79071.77921.7609
H92.15073.12222.82731.09083.83872.79071.77921.7609

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 118.727 C1 C3 H6 121.712
C1 C4 H7 109.280 C1 C4 H8 110.347
C1 C4 H9 110.347 O2 C1 C3 120.184
O2 C1 C4 121.524 C3 C1 C4 118.292
H5 C3 H6 119.561 H7 C4 H8 109.603
H7 C4 H9 109.603 H8 C4 H9 107.638
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.326      
2 O -0.541      
3 C -0.191      
4 C -0.420      
5 H 0.185      
6 H 0.162      
7 H 0.178      
8 H 0.150      
9 H 0.150      


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> 77.337
(<r2>)1/2 8.794