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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at CBS-Q
 hartrees
Energy at 0K-192.165931
Energy at 298.15K-192.159931
HF Energy-191.341956
Nuclear repulsion energy112.404814
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3433 3433 5.17      
2 A' 3321 3321 7.07      
3 A' 3306 3306 10.82      
4 A' 3193 3193 10.67      
5 A' 1621 1621 35.98      
6 A' 1613 1613 10.15      
7 A' 1551 1551 8.03      
8 A' 1535 1535 5.98      
9 A' 1348 1348 57.20      
10 A' 1145 1145 2.29      
11 A' 999 999 11.68      
12 A' 880 880 0.11      
13 A' 560 560 18.57      
14 A' 405 405 2.44      
15 A" 3253 3253 23.21      
16 A" 1616 1616 6.97      
17 A" 1122 1122 3.17      
18 A" 740 740 37.70      
19 A" 545 545 0.19      
20 A" 444 444 0.29      
21 A" 78 78 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 16352.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16352.8 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 CBS-Q
ABC
0.35943 0.30426 0.17002

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.141 0.000
O2 0.491 1.264 0.000
C3 -1.426 -0.012 0.000
C4 0.879 -1.094 0.000
H5 -2.045 0.869 0.000
H6 -1.895 -0.982 0.000
H7 1.922 -0.795 0.000
H8 0.685 -1.707 0.878
H9 0.685 -1.707 -0.878

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.22491.43421.51602.17012.20312.13772.15812.1581
O21.22492.30272.38882.56623.27672.50703.10383.1038
C31.43422.30272.54621.07641.07753.43792.84592.8459
C41.51602.38882.54623.52122.77651.08421.08871.0887
H52.17012.56621.07643.52121.85694.30113.85423.8542
H62.20313.27671.07752.77651.85693.82122.81992.8199
H72.13772.50703.43791.08424.30113.82121.76991.7699
H82.15813.10382.84591.08873.85422.81991.76991.7558
H92.15813.10382.84591.08873.85422.81991.76991.7558

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 118.934 C1 C3 H6 121.957
C1 C4 H7 109.476 C1 C4 H8 110.831
C1 C4 H9 110.831 O2 C1 C3 119.785
O2 C1 C4 120.916 C3 C1 C4 119.300
H5 C3 H6 119.109 H7 C4 H8 109.079
H7 C4 H9 109.079 H8 C4 H9 107.496
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability