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: CCD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-191.951283
Energy at 298.15K-191.955878
HF Energy-191.356588
Nuclear repulsion energy112.046987
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 CCD/6-31+G**
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' 3367 3173 2.71      
2 A' 3246 3059 7.00      
3 A' 3241 3054 1.65      
4 A' 3115 2935 3.09      
5 A' 1889 1780 372.70      
6 A' 1524 1436 10.68      
7 A' 1508 1421 29.24      
8 A' 1449 1365 31.78      
9 A' 1302 1226 86.78      
10 A' 1102 1039 8.41      
11 A' 936 882 10.89      
12 A' 841 793 0.28      
13 A' 540 509 16.23      
14 A' 390 367 2.18      
15 A" 3193 3009 9.48      
16 A" 1523 1435 9.06      
17 A" 1061 1000 3.97      
18 A" 666 627 45.73      
19 A" 527 497 2.02      
20 A" 305 287 0.01      
21 A" 70 66 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 15897.1 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 14979.9 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 CCD/6-31+G**
ABC
0.36374 0.30344 0.17067

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.157 0.000
O2 0.369 1.315 0.000
C3 -1.426 -0.173 0.000
C4 0.980 -1.000 0.000
H5 -2.141 0.635 0.000
H6 -1.774 -1.196 0.000
H7 1.994 -0.611 0.000
H8 0.822 -1.624 0.881
H9 0.822 -1.624 -0.881

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.21561.46321.51632.19352.23072.13702.15042.1504
O21.21562.33122.39462.60003.30092.52053.10203.1020
C31.46322.33122.54371.07931.08063.44772.81632.8163
C41.51632.39462.54373.52332.76061.08621.09131.0913
H52.19352.60001.07933.52331.86784.31873.82853.8285
H62.23073.30091.08062.76061.86783.81292.77392.7739
H72.13702.52053.44771.08624.31873.81291.78261.7826
H82.15043.10202.81631.09133.82852.77391.78261.7620
H92.15043.10202.81631.09133.82852.77391.78261.7620

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 118.466 C1 C3 H6 121.827
C1 C4 H7 109.288 C1 C4 H8 110.039
C1 C4 H9 110.039 O2 C1 C3 120.695
O2 C1 C4 122.074 C3 C1 C4 117.231
H5 C3 H6 119.707 H7 C4 H8 109.899
H7 C4 H9 109.899 H8 C4 H9 107.660
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability