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

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-191.833082
Energy at 298.15K-191.837824
HF Energy-191.342905
Nuclear repulsion energy112.319773
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 CISD/6-31G*
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' 3393 3141 2.99      
2 A' 3276 3033 5.85      
3 A' 3274 3031 3.24      
4 A' 3153 2919 3.40      
5 A' 1791 1658 94.00      
6 A' 1561 1445 10.48      
7 A' 1534 1420 28.35      
8 A' 1488 1377 30.46      
9 A' 1331 1232 74.95      
10 A' 1124 1041 5.33      
11 A' 963 892 8.05      
12 A' 863 799 0.03      
13 A' 548 507 17.95      
14 A' 396 367 2.37      
15 A" 3222 2983 11.54      
16 A" 1564 1448 9.28      
17 A" 1091 1010 6.14      
18 A" 714 661 41.21      
19 A" 540 500 0.71      
20 A" 370 343 0.12      
21 A" 84 77 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 16140.3 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 14942.6 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 CISD/6-31G*
ABC
0.36752 0.30410 0.17170

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.151 0.000
O2 0.405 1.299 0.000
C3 -1.423 -0.125 0.000
C4 0.948 -1.027 0.000
H5 -2.110 0.707 0.000
H6 -1.813 -1.133 0.000
H7 1.971 -0.662 0.000
H8 0.783 -1.650 0.880
H9 0.783 -1.650 -0.880

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.21711.44991.51252.18172.22192.13222.15242.1524
O21.21712.31742.38912.58333.29142.51003.10123.1012
C31.44992.31742.53711.07881.08023.43642.82252.8225
C41.51252.38912.53713.51532.76351.08611.09091.0909
H52.18172.58331.07883.51531.86314.30433.83373.8337
H62.22193.29141.08022.76351.86313.81352.78972.7897
H72.13222.51003.43641.08614.30433.81351.77851.7785
H82.15243.10122.82251.09093.83372.78971.77851.7601
H92.15243.10122.82251.09093.83372.78971.77851.7601

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 118.523 C1 C3 H6 122.174
C1 C4 H7 109.173 C1 C4 H8 110.489
C1 C4 H9 110.489 O2 C1 C3 120.418
O2 C1 C4 121.765 C3 C1 C4 117.817
H5 C3 H6 119.303 H7 C4 H8 109.560
H7 C4 H9 109.560 H8 C4 H9 107.548
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability