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

using model chemistry: HF/CEP-121G

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-121G
 hartrees
Energy at 0K-34.963180
Energy at 298.15K 
HF Energy-34.963180
Nuclear repulsion energy60.852406
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-121G
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' 3403 3106 10.63      
2 A' 3279 2992 23.32      
3 A' 3274 2988 4.43      
4 A' 3159 2882 21.85      
5 A' 1625 1483 11.65      
6 A' 1589 1450 32.04      
7 A' 1561 1425 14.98      
8 A' 1451 1324 28.14      
9 A' 1347 1229 16.18      
10 A' 1088 993 4.13      
11 A' 1046 955 7.93      
12 A' 880 803 0.07      
13 A' 537 490 16.43      
14 A' 408 372 1.82      
15 A" 3237 2954 35.71      
16 A" 1625 1483 12.31      
17 A" 1146 1046 1.21      
18 A" 821 749 52.70      
19 A" 534 487 0.01      
20 A" 503 459 1.47      
21 A" 47i 43i 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 16232.6 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 14812.2 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-121G
ABC
0.35916 0.29493 0.16692

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.112 0.000
O2 0.746 1.178 0.000
C3 -1.415 0.264 0.000
C4 0.659 -1.257 0.000
H5 -1.842 1.251 0.000
H6 -2.068 -0.591 0.000
H7 1.736 -1.142 0.000
H8 0.371 -1.828 0.878
H9 0.371 -1.828 -0.878

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.30111.42291.51982.16532.18472.14132.16172.1617
O21.30112.34612.43712.58823.32422.52273.15473.1547
C31.42292.34612.57221.07551.07623.44992.88712.8871
C41.51982.43712.57223.54202.80801.08241.08631.0863
H52.16532.58821.07553.54201.85624.30383.89183.8918
H62.18473.32421.07622.80801.85623.84382.87222.8722
H72.14132.52273.44991.08244.30383.84381.76221.7622
H82.16173.15472.88711.08633.89182.87221.76221.7552
H92.16173.15472.88711.08633.89182.87221.76221.7552

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 119.496 C1 C3 H6 121.273
C1 C4 H7 109.604 C1 C4 H8 111.002
C1 C4 H9 111.002 O2 C1 C3 118.844
O2 C1 C4 119.319 C3 C1 C4 121.838
H5 C3 H6 119.231 H7 C4 H8 108.691
H7 C4 H9 108.691 H8 C4 H9 107.781
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.259      
2 O -0.216      
3 C -0.290      
4 C -0.605      
5 H 0.167      
6 H 0.169      
7 H 0.190      
8 H 0.163      
9 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.803 -2.421 0.000 3.019
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.874 -2.585 0.000
y -2.585 -26.464 0.000
z 0.000 0.000 -25.025
Traceless
 xyz
x 1.870 -2.585 0.000
y -2.585 -2.015 0.000
z 0.000 0.000 0.145
Polar
3z2-r20.289
x2-y22.590
xy-2.585
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.860 0.501 0.000
y 0.501 5.408 0.000
z 0.000 0.000 3.503


<r2> (average value of r2) Å2
<r2> 66.157
(<r2>)1/2 8.134