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

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-191.382735
Energy at 298.15K-191.387497
HF Energy-191.382735
Nuclear repulsion energy111.459401
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 mPW1PW91/3-21G*
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' 3312 3145 2.50      
2 A' 3196 3035 3.30      
3 A' 3191 3030 2.91      
4 A' 3078 2923 1.95      
5 A' 1540 1463 10.05      
6 A' 1521 1445 20.52      
7 A' 1469 1395 20.01      
8 A' 1440 1367 44.53      
9 A' 1276 1211 54.13      
10 A' 1083 1028 2.89      
11 A' 959 911 5.11      
12 A' 825 784 2.82      
13 A' 508 482 11.89      
14 A' 397 377 2.19      
15 A" 3144 2985 7.36      
16 A" 1550 1472 14.18      
17 A" 1075 1021 11.14      
18 A" 807 766 40.01      
19 A" 538 511 4.25      
20 A" 430 409 0.16      
21 A" 71 67 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 15704.4 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 14912.9 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 mPW1PW91/3-21G*
ABC
0.35603 0.30611 0.16985

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.148 0.000
O2 0.526 1.295 0.000
C3 -1.414 -0.018 0.000
C4 0.841 -1.118 0.000
H5 -2.047 0.860 0.000
H6 -1.868 -1.001 0.000
H7 1.897 -0.841 0.000
H8 0.625 -1.724 0.887
H9 0.625 -1.724 -0.887

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.26171.42411.51952.16722.19302.13882.16322.1632
O21.26172.34252.43292.60893.31672.53783.14753.1475
C31.42412.34252.50951.08221.08283.41182.80292.8029
C41.51952.43292.50953.50042.71181.09091.09551.0955
H52.16722.60891.08223.50041.87004.29473.82133.8213
H62.19303.31671.08282.71181.87003.76792.74302.7430
H72.13882.53783.41181.09094.29473.76791.78371.7837
H82.16323.14752.80291.09553.82132.74301.78371.7734
H92.16323.14752.80291.09553.82132.74301.78371.7734

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 119.072 C1 C3 H6 121.441
C1 C4 H7 108.930 C1 C4 H8 110.577
C1 C4 H9 110.577 O2 C1 C3 121.305
O2 C1 C4 121.756 C3 C1 C4 116.939
H5 C3 H6 119.487 H7 C4 H8 109.334
H7 C4 H9 109.334 H8 C4 H9 108.066
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.336      
2 O -0.440      
3 C -0.396      
4 C -0.702      
5 H 0.250      
6 H 0.225      
7 H 0.252      
8 H 0.237      
9 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.432 -2.428 0.000 2.819
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.348 -1.670 0.000
y -1.670 -26.059 0.000
z 0.000 0.000 -24.518
Traceless
 xyz
x 2.940 -1.670 0.000
y -1.670 -2.626 0.000
z 0.000 0.000 -0.314
Polar
3z2-r2-0.628
x2-y23.711
xy-1.670
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.440 0.315 0.000
y 0.315 5.145 0.000
z 0.000 0.000 2.652


<r2> (average value of r2) Å2
<r2> 76.704
(<r2>)1/2 8.758