return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: M06-2X/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at M06-2X/6-31G(2df,p)
 hartrees
Energy at 0K-192.413174
Energy at 298.15K-192.417819
HF Energy-192.413174
Nuclear repulsion energy112.218724
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 M06-2X/6-31G(2df,p)
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' 3301 3144 1.35      
2 A' 3189 3038 4.09      
3 A' 3177 3026 0.81      
4 A' 3062 2916 2.02      
5 A' 1700 1619 91.34      
6 A' 1474 1404 14.98      
7 A' 1457 1388 33.29      
8 A' 1387 1321 33.52      
9 A' 1277 1217 53.33      
10 A' 1064 1013 4.99      
11 A' 924 880 3.56      
12 A' 833 793 2.01      
13 A' 527 502 15.46      
14 A' 381 363 2.00      
15 A" 3135 2986 6.59      
16 A" 1476 1406 7.74      
17 A" 1023 975 5.15      
18 A" 728 693 24.71      
19 A" 517 493 0.58      
20 A" 386 368 0.02      
21 A" 60 57 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15539.5 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 14799.8 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 M06-2X/6-31G(2df,p)
ABC
0.36582 0.30485 0.17158

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.153 0.000
O2 0.430 1.296 0.000
C3 -1.421 -0.100 0.000
C4 0.926 -1.047 0.000
H5 -2.095 0.745 0.000
H6 -1.824 -1.106 0.000
H7 1.959 -0.705 0.000
H8 0.744 -1.669 0.881
H9 0.744 -1.669 -0.881

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.22111.44341.51632.17742.21612.13922.15682.1568
O21.22112.31902.39552.58513.29382.51843.10953.1095
C31.44342.31902.53051.08191.08273.43392.81482.8148
C41.51632.39552.53053.51312.75011.08891.09371.0937
H52.17742.58511.08193.51311.87074.30643.82983.8298
H62.21613.29381.08272.75011.87073.80432.77242.7724
H72.13922.51843.43391.08894.30643.80431.78451.7845
H82.15683.10952.81481.09373.82982.77241.78451.7623
H92.15683.10952.81481.09373.82982.77241.78451.7623

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 118.440 C1 C3 H6 121.977
C1 C4 H7 109.292 C1 C4 H8 110.404
C1 C4 H9 110.404 O2 C1 C3 120.769
O2 C1 C4 121.736 C3 C1 C4 117.495
H5 C3 H6 119.584 H7 C4 H8 109.687
H7 C4 H9 109.687 H8 C4 H9 107.343
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.425      
2 O -0.353      
3 C -0.346      
4 C -0.515      
5 H 0.170      
6 H 0.155      
7 H 0.162      
8 H 0.151      
9 H 0.151      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.326 -2.595 0.000 2.914
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.044 -1.385 0.000
y -1.385 -26.369 0.000
z 0.000 0.000 -24.140
Traceless
 xyz
x 3.211 -1.385 0.000
y -1.385 -3.277 0.000
z 0.000 0.000 0.066
Polar
3z2-r20.132
x2-y24.325
xy-1.385
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.997 0.189 0.000
y 0.189 5.717 0.000
z 0.000 0.000 3.471


<r2> (average value of r2) Å2
<r2> 76.131
(<r2>)1/2 8.725