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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-191.360971
Energy at 298.15K-191.365704
HF Energy-191.360971
Nuclear repulsion energy111.246729
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 B3PW91/3-21G*
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' 3293 3159 3.08      
2 A' 3177 3048 4.12      
3 A' 3173 3044 3.00      
4 A' 3060 2936 2.10      
5 A' 1534 1472 8.69      
6 A' 1512 1451 19.81      
7 A' 1465 1406 22.70      
8 A' 1430 1372 42.92      
9 A' 1264 1213 55.93      
10 A' 1076 1033 2.96      
11 A' 951 912 5.15      
12 A' 815 782 3.25      
13 A' 505 484 11.43      
14 A' 395 379 2.14      
15 A" 3124 2997 8.17      
16 A" 1542 1480 13.80      
17 A" 1067 1024 11.07      
18 A" 800 767 39.24      
19 A" 533 512 4.59      
20 A" 421 403 0.09      
21 A" 70 67 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 15603.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 14970.0 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 B3PW91/3-21G*
ABC
0.35442 0.30501 0.16916

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.150 0.000
O2 0.517 1.302 0.000
C3 -1.417 -0.029 0.000
C4 0.851 -1.114 0.000
H5 -2.058 0.844 0.000
H6 -1.862 -1.018 0.000
H7 1.906 -0.833 0.000
H8 0.636 -1.722 0.888
H9 0.636 -1.722 -0.888

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.26301.42781.52342.17202.19782.14482.16722.1672
O21.26302.34762.43912.61533.32302.54753.15403.1540
C31.42782.34762.51331.08391.08443.41872.80502.8050
C41.52342.43912.51333.50642.71401.09241.09721.0972
H52.17202.61531.08393.50641.87294.30463.82543.8254
H62.19783.32301.08442.71401.87293.77262.74302.7430
H72.14482.54753.41871.09244.30463.77261.78631.7863
H82.16723.15402.80501.09723.82542.74301.78631.7757
H92.16723.15402.80501.09723.82542.74301.78631.7757

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 119.073 C1 C3 H6 121.448
C1 C4 H7 109.045 C1 C4 H8 110.529
C1 C4 H9 110.529 O2 C1 C3 121.373
O2 C1 C4 121.893 C3 C1 C4 116.734
H5 C3 H6 119.479 H7 C4 H8 109.339
H7 C4 H9 109.339 H8 C4 H9 108.037
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.334      
2 O -0.435      
3 C -0.390      
4 C -0.693      
5 H 0.247      
6 H 0.222      
7 H 0.248      
8 H 0.234      
9 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.410 -2.424 0.000 2.805
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.332 -1.634 0.000
y -1.634 -26.075 0.000
z 0.000 0.000 -24.507
Traceless
 xyz
x 2.959 -1.634 0.000
y -1.634 -2.656 0.000
z 0.000 0.000 -0.303
Polar
3z2-r2-0.606
x2-y23.743
xy-1.634
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.495 0.303 0.000
y 0.303 5.188 0.000
z 0.000 0.000 2.668


<r2> (average value of r2) Å2
<r2> 76.945
(<r2>)1/2 8.772