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

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-191.911977
Energy at 298.15K-191.916617
HF Energy-191.342231
Nuclear repulsion energy111.471433
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 QCISD/6-31G*
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' 3301 3143 3.98      
2 A' 3188 3036 7.71      
3 A' 3186 3034 2.31      
4 A' 3071 2924 4.95      
5 A' 1651 1572 43.70      
6 A' 1526 1453 10.52      
7 A' 1498 1426 26.13      
8 A' 1446 1377 25.68      
9 A' 1309 1246 56.36      
10 A' 1088 1036 3.25      
11 A' 951 906 4.20      
12 A' 842 802 0.56      
13 A' 530 504 15.82      
14 A' 387 369 1.77      
15 A" 3139 2990 12.92      
16 A" 1527 1454 8.58      
17 A" 1055 1005 4.14      
18 A" 693 660 38.41      
19 A" 509 485 1.03      
20 A" 363 346 0.02      
21 A" 76 72 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 15668.5 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 14921.1 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 QCISD/6-31G*
ABC
0.36178 0.30068 0.16942

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.144 0.000
O2 0.455 1.298 0.000
C3 -1.432 -0.075 0.000
C4 0.915 -1.068 0.000
H5 -2.092 0.788 0.000
H6 -1.864 -1.072 0.000
H7 1.954 -0.730 0.000
H8 0.733 -1.690 0.886
H9 0.733 -1.690 -0.886

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.24041.44851.51862.18862.22602.14112.16482.1648
O21.24042.33332.41042.59733.31612.52253.12933.1293
C31.44852.33332.54831.08591.08733.44922.84252.8425
C41.51862.41042.54833.53322.77901.09321.09761.0976
H52.18862.59731.08593.53321.87394.32173.86053.8605
H62.22603.31611.08732.77901.87393.83392.81252.8125
H72.14112.52253.44921.09324.32173.83391.78851.7885
H82.16483.12932.84251.09763.86052.81251.78851.7713
H92.16483.12932.84251.09763.86052.81251.78851.7713

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 118.738 C1 C3 H6 122.118
C1 C4 H7 109.042 C1 C4 H8 110.647
C1 C4 H9 110.647 O2 C1 C3 120.200
O2 C1 C4 121.447 C3 C1 C4 118.352
H5 C3 H6 119.144 H7 C4 H8 109.449
H7 C4 H9 109.449 H8 C4 H9 107.583
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability