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

using model chemistry: HF/CEP-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 HF/CEP-31G
 hartrees
Energy at 0K-34.955139
Energy at 298.15K 
HF Energy-34.955139
Nuclear repulsion energy60.648207
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 HF/CEP-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' 3459 3118 19.98      
2 A' 3341 3011 16.99      
3 A' 3332 3004 27.60      
4 A' 3221 2904 27.71      
5 A' 1621 1462 10.43      
6 A' 1604 1445 34.58      
7 A' 1567 1413 14.24      
8 A' 1463 1319 27.55      
9 A' 1370 1235 16.53      
10 A' 1096 988 6.50      
11 A' 1053 949 5.92      
12 A' 886 798 0.20      
13 A' 535 483 17.04      
14 A' 405 365 1.82      
15 A" 3295 2970 54.73      
16 A" 1624 1464 14.50      
17 A" 1149 1036 2.33      
18 A" 827 746 70.70      
19 A" 531 479 0.05      
20 A" 501 452 1.88      
21 A" 40i 36i 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 16420.3 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 14801.2 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 HF/CEP-31G
ABC
0.35581 0.29328 0.16570

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.116 0.000
O2 0.692 1.216 0.000
C3 -1.433 0.195 0.000
C4 0.720 -1.228 0.000
H5 -1.910 1.163 0.000
H6 -2.044 -0.694 0.000
H7 1.794 -1.068 0.000
H8 0.452 -1.812 0.880
H9 0.452 -1.812 -0.880

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.30001.43541.52462.17882.19882.14912.16712.1671
O21.30002.35792.44472.60303.33722.53573.16283.1628
C31.43542.35792.58091.07961.07893.46532.89122.8912
C41.52462.44472.58093.55502.81511.08611.08971.0897
H52.17882.60301.07963.55501.86254.32433.90023.9002
H62.19883.33721.07892.81511.86253.85632.87362.8736
H72.14912.53573.46531.08614.32433.85631.76901.7690
H82.16713.16282.89121.08973.90022.87361.76901.7607
H92.16713.16282.89121.08973.90022.87361.76901.7607

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 119.402 C1 C3 H6 121.327
C1 C4 H7 109.662 C1 C4 H8 110.884
C1 C4 H9 110.884 O2 C1 C3 118.999
O2 C1 C4 119.665 C3 C1 C4 121.336
H5 C3 H6 119.272 H7 C4 H8 108.783
H7 C4 H9 108.783 H8 C4 H9 107.782
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.041      
2 O -0.161      
3 C -0.288      
4 C -0.351      
5 H 0.175      
6 H 0.191      
7 H 0.159      
8 H 0.118      
9 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.747 -2.584 0.000 3.120
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.620 -2.494 0.000
y -2.494 -26.752 0.000
z 0.000 0.000 -24.910
Traceless
 xyz
x 2.211 -2.494 0.000
y -2.494 -2.487 0.000
z 0.000 0.000 0.276
Polar
3z2-r20.553
x2-y23.132
xy-2.494
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.480 0.557 0.000
y 0.557 5.116 0.000
z 0.000 0.000 3.004


<r2> (average value of r2) Å2
<r2> 66.499
(<r2>)1/2 8.155