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

using model chemistry: MP2/CEP-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 MP2/CEP-31G*
 hartrees
Energy at 0K-35.527940
Energy at 298.15K-35.532389
HF Energy-35.032438
Nuclear repulsion energy60.826106
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 MP2/CEP-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' 3348 3178 8.31      
2 A' 3237 3073 11.93      
3 A' 3210 3048 2.01      
4 A' 3097 2940 1.98      
5 A' 2128 2021 1164.42      
6 A' 1496 1420 17.12      
7 A' 1482 1407 33.26      
8 A' 1425 1353 47.37      
9 A' 1278 1213 105.76      
10 A' 1083 1029 6.61      
11 A' 905 859 13.27      
12 A' 823 782 1.21      
13 A' 525 498 15.68      
14 A' 377 358 1.85      
15 A" 3192 3031 13.85      
16 A" 1501 1425 12.94      
17 A" 1062 1008 12.88      
18 A" 621 590 52.89      
19 A" 506 481 22.79      
20 A" 247 235 0.29      
21 A" 86 82 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15814.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 15014.2 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 MP2/CEP-31G*
ABC
0.35000 0.29786 0.16600

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.174 0.000
O2 0.274 1.358 0.000
C3 -1.432 -0.300 0.000
C4 1.063 -0.932 0.000
H5 -2.221 0.456 0.000
H6 -1.690 -1.363 0.000
H7 2.063 -0.474 0.000
H8 0.932 -1.570 0.892
H9 0.932 -1.570 -0.892

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.21531.50831.53422.23892.28462.16272.16952.1695
O21.21532.37922.42212.65333.35602.56093.13073.1307
C31.50832.37922.57361.09331.09353.49922.82782.8278
C41.53422.42212.57363.56552.78711.09971.10451.1045
H52.23892.65331.09333.56551.89464.38413.85283.8528
H62.28463.35601.09352.78711.89463.85732.77812.7781
H72.16272.56093.49921.09974.38413.85731.80951.8095
H82.16953.13072.82781.10453.85282.77811.80951.7845
H92.16953.13072.82781.10453.85282.77811.80951.7845

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 117.885 C1 C3 H6 122.023
C1 C4 H7 109.280 C1 C4 H8 109.525
C1 C4 H9 109.525 O2 C1 C3 121.380
O2 C1 C4 123.088 C3 C1 C4 115.532
H5 C3 H6 120.092 H7 C4 H8 110.362
H7 C4 H9 110.362 H8 C4 H9 107.765
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability