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

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-190.656940
Energy at 298.15K-190.661731
HF Energy-190.275413
Nuclear repulsion energy111.019296
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/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' 3269 3127 3.39      
2 A' 3159 3022 3.61      
3 A' 3146 3009 5.28      
4 A' 3049 2916 3.26      
5 A' 1556 1488 10.63      
6 A' 1541 1474 18.03      
7 A' 1459 1395 15.19      
8 A' 1423 1362 28.81      
9 A' 1213 1160 41.59      
10 A' 1080 1033 5.39      
11 A' 895 856 23.98      
12 A' 795 760 1.02      
13 A' 516 494 13.00      
14 A' 398 381 2.72      
15 A" 3110 2974 10.94      
16 A" 1565 1497 10.10      
17 A" 1100 1052 6.09      
18 A" 768 735 37.85      
19 A" 557 532 1.62      
20 A" 437 418 0.39      
21 A" 95 90 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 15564.2 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 14887.2 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 CCD/3-21G*
ABC
0.35476 0.30110 0.16807

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.156 0.000
O2 0.506 1.299 0.000
C3 -1.427 -0.035 0.000
C4 0.870 -1.112 0.000
H5 -2.080 0.833 0.000
H6 -1.867 -1.029 0.000
H7 1.922 -0.809 0.000
H8 0.663 -1.720 0.892
H9 0.663 -1.720 -0.892

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.25011.44011.53802.18742.21122.15072.18052.1805
O21.25012.34882.43912.62693.32402.53973.15233.1523
C31.44012.34882.53731.08631.08673.43782.82912.8291
C41.53802.43912.53733.53372.73811.09541.09901.0990
H52.18742.62691.08633.53371.87454.32583.85203.8520
H62.21123.32401.08672.73811.87453.79572.77002.7700
H72.15072.53973.43781.09544.32583.79571.79241.7924
H82.18053.15232.82911.09903.85202.77001.79241.7838
H92.18053.15232.82911.09903.85202.77001.79241.7838

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 119.288 C1 C3 H6 121.484
C1 C4 H7 108.338 C1 C4 H8 110.455
C1 C4 H9 110.455 O2 C1 C3 121.473
O2 C1 C4 121.706 C3 C1 C4 116.822
H5 C3 H6 119.228 H7 C4 H8 109.539
H7 C4 H9 109.539 H8 C4 H9 108.503
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability