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: PBEPBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at PBEPBE/TZVP
 hartrees
Energy at 0K-192.323703
Energy at 298.15K-192.328116
HF Energy-192.323703
Nuclear repulsion energy111.370957
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 PBEPBE/TZVP
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' 3192 3157 3.29      
2 A' 3091 3056 5.84      
3 A' 3075 3041 3.48      
4 A' 2973 2940 2.69      
5 A' 1546 1529 78.70      
6 A' 1426 1410 17.25      
7 A' 1408 1393 32.66      
8 A' 1339 1324 38.20      
9 A' 1237 1223 48.13      
10 A' 1030 1019 3.91      
11 A' 898 888 3.14      
12 A' 800 791 5.27      
13 A' 514 508 11.31      
14 A' 377 373 2.23      
15 A" 3036 3002 7.53      
16 A" 1426 1410 11.54      
17 A" 983 972 5.45      
18 A" 725 717 29.68      
19 A" 485 480 2.23      
20 A" 301 297 0.00      
21 A" 26 26 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 14944.7 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 14777.4 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 PBEPBE/TZVP
ABC
0.36055 0.30118 0.16931

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.146 0.000
O2 0.473 1.297 0.000
C3 -1.428 -0.057 0.000
C4 0.898 -1.082 0.000
H5 -2.079 0.817 0.000
H6 -1.873 -1.054 0.000
H7 1.948 -0.770 0.000
H8 0.702 -1.707 0.885
H9 0.702 -1.707 -0.885

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.24411.44211.52072.18502.22462.15252.17012.1701
O21.24412.33332.41622.59653.32102.53923.13973.1397
C31.44212.33332.54101.09051.09193.45022.83592.8359
C41.52072.41622.54103.53102.77101.09581.10121.1012
H52.18502.59651.09053.53101.88264.32873.85903.8590
H62.22463.32101.09192.77101.88263.83192.80082.8008
H72.15252.53923.45021.09584.32873.83191.79261.7926
H82.17013.13972.83591.10123.85902.80081.79261.7708
H92.17013.13972.83591.10123.85902.80081.79261.7708

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 118.596 C1 C3 H6 122.179
C1 C4 H7 109.631 C1 C4 H8 110.703
C1 C4 H9 110.703 O2 C1 C3 120.417
O2 C1 C4 121.503 C3 C1 C4 118.080
H5 C3 H6 119.226 H7 C4 H8 109.360
H7 C4 H9 109.360 H8 C4 H9 107.035
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.110      
2 O -0.218      
3 C -0.198      
4 C -0.406      
5 H 0.145      
6 H 0.140      
7 H 0.153      
8 H 0.137      
9 H 0.137      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.386 -2.714 0.000 3.048
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.814 -1.650 0.000
y -1.650 -27.117 0.000
z 0.000 0.000 -24.860
Traceless
 xyz
x 3.174 -1.650 0.000
y -1.650 -3.280 0.000
z 0.000 0.000 0.106
Polar
3z2-r20.212
x2-y24.303
xy-1.650
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.954 0.272 0.000
y 0.272 6.579 0.000
z 0.000 0.000 4.112


<r2> (average value of r2) Å2
<r2> 77.422
(<r2>)1/2 8.799