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

using model chemistry: MP4=FULL/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 MP4=FULL/3-21G
 hartrees
Energy at 0K-190.676395
Energy at 298.15K-190.681009
HF Energy-190.274236
Nuclear repulsion energy110.790355
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 MP4=FULL/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' 3265 3196        
2 A' 3150 3083        
3 A' 3138 3071        
4 A' 3037 2972        
5 A' 1554 1521        
6 A' 1542 1510        
7 A' 1460 1429        
8 A' 1437 1407        
9 A' 1204 1178        
10 A' 1081 1058        
11 A' 873 854        
12 A' 767 751        
13 A' 509 498        
14 A' 391 383        
15 A" 3103 3037        
16 A" 1560 1527        
17 A" 1091 1068        
18 A" 740 725        
19 A" 555 543        
20 A" 391 383        
21 A" 39 38        

Unscaled Zero Point Vibrational Energy (zpe) 15443.0 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 15115.6 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 MP4=FULL/3-21G
ABC
0.35133 0.30055 0.16714

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.164 0.000
O2 0.451 1.324 0.000
C3 -1.430 -0.102 0.000
C4 0.917 -1.077 0.000
H5 -2.124 0.734 0.000
H6 -1.819 -1.117 0.000
H7 1.958 -0.735 0.000
H8 0.728 -1.691 0.893
H9 0.728 -1.691 -0.893

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.24421.45481.54322.19892.22542.15462.18382.1838
O21.24422.36052.44572.64123.33372.55133.15643.1564
C31.45482.36052.54151.08671.08723.44692.82492.8249
C41.54322.44572.54153.53932.73671.09611.09961.0996
H52.19892.64121.08673.53931.87654.33823.84883.8488
H62.22543.33371.08722.73671.87653.79702.76002.7600
H72.15462.55133.44691.09614.33823.79701.79541.7954
H82.18383.15642.82491.09963.84882.76001.79541.7852
H92.18383.15642.82491.09963.84882.76001.79541.7852

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 119.106 C1 C3 H6 121.534
C1 C4 H7 108.250 C1 C4 H8 110.315
C1 C4 H9 110.315 O2 C1 C3 121.800
O2 C1 C4 122.298 C3 C1 C4 115.901
H5 C3 H6 119.361 H7 C4 H8 109.708
H7 C4 H9 109.708 H8 C4 H9 108.539
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability