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

using model chemistry: CCSD(T)/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 CCSD(T)/6-31G**
 hartrees
Energy at 0K-191.968867
Energy at 298.15K-191.973433
HF Energy-191.350863
Nuclear repulsion energy111.497644
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 CCSD(T)/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' 3340 3168        
2 A' 3220 3054        
3 A' 3216 3051        
4 A' 3095 2935        
5 A' 1638 1553        
6 A' 1526 1448        
7 A' 1503 1426        
8 A' 1437 1363        
9 A' 1299 1232        
10 A' 1082 1026        
11 A' 944 896        
12 A' 835 792        
13 A' 522 495        
14 A' 381 361        
15 A" 3171 3008        
16 A" 1529 1450        
17 A" 1047 993        
18 A" 684 649        
19 A" 500 474        
20 A" 355 337        
21 A" 49 47        

Unscaled Zero Point Vibrational Energy (zpe) 15686.1 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 14878.3 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 CCSD(T)/6-31G**
ABC
0.36106 0.30102 0.16933

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.145 0.000
O2 0.458 1.300 0.000
C3 -1.432 -0.074 0.000
C4 0.913 -1.071 0.000
H5 -2.088 0.785 0.000
H6 -1.860 -1.068 0.000
H7 1.948 -0.736 0.000
H8 0.728 -1.688 0.882
H9 0.728 -1.688 -0.882

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.24231.44891.51992.18422.22072.13842.16032.1603
O21.24232.33642.41342.59763.31342.52353.12693.1269
C31.44892.33642.54821.08051.08233.44512.83732.8373
C41.51992.41342.54823.52832.77321.08811.09271.0927
H52.18422.59761.08053.52831.86664.31393.85013.8501
H62.22073.31341.08232.77321.86663.82322.80392.8039
H72.13842.52353.44511.08814.31393.82321.78151.7815
H82.16033.12692.83731.09273.85012.80391.78151.7645
H92.16033.12692.83731.09273.85012.80391.78151.7645

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 118.704 C1 C3 H6 121.975
C1 C4 H7 109.035 C1 C4 H8 110.496
C1 C4 H9 110.496 O2 C1 C3 120.295
O2 C1 C4 121.468 C3 C1 C4 118.237
H5 C3 H6 119.321 H7 C4 H8 109.553
H7 C4 H9 109.553 H8 C4 H9 107.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability