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

using model chemistry: PBE1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at PBE1PBE/3-21G
 hartrees
Energy at 0K-191.206922
Energy at 298.15K-191.211688
HF Energy-191.206922
Nuclear repulsion energy111.417520
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 PBE1PBE/3-21G
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' 3307 3176 2.30      
2 A' 3190 3063 3.57      
3 A' 3186 3060 2.13      
4 A' 3072 2951 1.70      
5 A' 1538 1477 11.67      
6 A' 1517 1457 20.33      
7 A' 1469 1411 21.23      
8 A' 1434 1377 44.23      
9 A' 1274 1223 54.00      
10 A' 1080 1037 2.81      
11 A' 956 918 4.95      
12 A' 826 794 2.79      
13 A' 506 486 11.86      
14 A' 395 380 2.15      
15 A" 3140 3015 6.75      
16 A" 1545 1483 14.39      
17 A" 1071 1029 11.31      
18 A" 804 772 39.89      
19 A" 536 515 4.44      
20 A" 429 412 0.15      
21 A" 72 69 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 15673.6 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 15052.9 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 PBE1PBE/3-21G
ABC
0.35559 0.30611 0.16976

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.148 0.000
O2 0.518 1.299 0.000
C3 -1.414 -0.028 0.000
C4 0.848 -1.113 0.000
H5 -2.053 0.847 0.000
H6 -1.860 -1.016 0.000
H7 1.903 -0.831 0.000
H8 0.634 -1.720 0.888
H9 0.634 -1.720 -0.888

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.26151.42521.51962.16892.19462.14072.16372.1637
O21.26152.34362.43402.61023.31852.54133.14903.1490
C31.42522.34362.50881.08351.08413.41352.80122.8012
C41.51962.43402.50883.50112.70991.09221.09681.0968
H52.16892.61021.08353.50111.87324.29793.82103.8210
H62.19463.31851.08412.70991.87323.76812.73942.7394
H72.14072.54133.41351.09224.29793.76811.78601.7860
H82.16373.14902.80121.09683.82102.73941.78601.7753
H92.16373.14902.80121.09683.82102.73941.78601.7753

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 119.030 C1 C3 H6 121.396
C1 C4 H7 109.000 C1 C4 H8 110.536
C1 C4 H9 110.536 O2 C1 C3 121.326
O2 C1 C4 121.859 C3 C1 C4 116.814
H5 C3 H6 119.574 H7 C4 H8 109.346
H7 C4 H9 109.346 H8 C4 H9 108.056
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.334      
2 O -0.438      
3 C -0.395      
4 C -0.705      
5 H 0.250      
6 H 0.225      
7 H 0.253      
8 H 0.238      
9 H 0.238      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.410 -2.426 0.000 2.806
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.392 -1.635 0.000
y -1.635 -26.116 0.000
z 0.000 0.000 -24.575
Traceless
 xyz
x 2.954 -1.635 0.000
y -1.635 -2.632 0.000
z 0.000 0.000 -0.322
Polar
3z2-r2-0.643
x2-y23.724
xy-1.635
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.450 0.315 0.000
y 0.315 5.163 0.000
z 0.000 0.000 2.659


<r2> (average value of r2) Å2
<r2> 76.772
(<r2>)1/2 8.762