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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-190.623035
Energy at 298.15K-190.627792
HF Energy-190.273231
Nuclear repulsion energy111.272502
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 MP2/3-21G
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' 3330 3178 2.45      
2 A' 3208 3062 4.16      
3 A' 3203 3057 3.19      
4 A' 3095 2954 1.12      
5 A' 1604 1531 18.60      
6 A' 1568 1497 12.42      
7 A' 1499 1431 6.99      
8 A' 1460 1393 35.17      
9 A' 1218 1163 76.49      
10 A' 1102 1052 9.22      
11 A' 869 829 35.39      
12 A' 769 734 2.34      
13 A' 521 497 11.43      
14 A' 397 379 3.13      
15 A" 3165 3021 7.22      
16 A" 1582 1510 11.49      
17 A" 1111 1060 8.39      
18 A" 727 694 38.71      
19 A" 565 540 4.27      
20 A" 364 347 0.11      
21 A" 118 112 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 15736.0 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 15020.0 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 MP2/3-21G
ABC
0.35256 0.30379 0.16837

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.171 0.000
O2 0.392 1.335 0.000
C3 -1.424 -0.170 0.000
C4 0.959 -1.029 0.000
H5 -2.154 0.629 0.000
H6 -1.758 -1.200 0.000
H7 1.983 -0.650 0.000
H8 0.792 -1.647 0.889
H9 0.792 -1.647 -0.889

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.22761.46411.53632.20212.22972.14612.17312.1731
O21.22762.35822.43072.64203.32372.54353.13683.1368
C31.46412.35822.53281.08241.08263.44012.80692.8069
C41.53632.43072.53283.52692.72281.09161.09551.0955
H52.20212.64201.08243.52691.87084.32993.82703.8270
H62.22973.32371.08262.72281.87083.78132.73732.7373
H72.14612.54353.44011.09164.32993.78131.78961.7896
H82.17313.13682.80691.09553.82702.73731.78961.7777
H92.17313.13682.80691.09553.82702.73731.78961.7777

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 118.942 C1 C3 H6 121.493
C1 C4 H7 108.313 C1 C4 H8 110.203
C1 C4 H9 110.203 O2 C1 C3 122.103
O2 C1 C4 122.756 C3 C1 C4 115.141
H5 C3 H6 119.565 H7 C4 H8 109.827
H7 C4 H9 109.827 H8 C4 H9 108.465
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability