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

using model chemistry: MP2=FULL/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=FULL/3-21G*
 hartrees
Energy at 0K-190.629713
Energy at 298.15K-190.634461
HF Energy-190.273260
Nuclear repulsion energy111.288721
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=FULL/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 3157 2.42      
2 A' 3208 3041 4.13      
3 A' 3203 3037 3.16      
4 A' 3095 2934 1.10      
5 A' 1605 1521 18.69      
6 A' 1568 1486 12.41      
7 A' 1500 1422 7.02      
8 A' 1460 1384 35.29      
9 A' 1218 1155 76.48      
10 A' 1103 1045 9.20      
11 A' 869 824 35.32      
12 A' 769 729 2.34      
13 A' 521 494 11.43      
14 A' 397 376 3.13      
15 A" 3166 3001 7.15      
16 A" 1582 1499 11.52      
17 A" 1111 1053 8.44      
18 A" 728 690 38.77      
19 A" 566 536 4.21      
20 A" 364 345 0.11      
21 A" 118 112 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 15739.5 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 14921.0 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=FULL/3-21G*
ABC
0.35267 0.30388 0.16842

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 1.334 0.000
C3 -1.424 -0.169 0.000
C4 0.959 -1.029 0.000
H5 -2.153 0.630 0.000
H6 -1.759 -1.199 0.000
H7 1.982 -0.650 0.000
H8 0.791 -1.647 0.889
H9 0.791 -1.647 -0.889

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.22761.46381.53602.20172.22942.14572.17282.1728
O21.22762.35782.43022.64153.32332.54303.13643.1364
C31.46382.35782.53241.08231.08243.43962.80662.8066
C41.53602.43022.53243.52642.72261.09151.09531.0953
H52.20172.64151.08233.52641.87064.32923.82663.8266
H62.22943.32331.08242.72261.87063.78092.73722.7372
H72.14572.54303.43961.09154.32923.78091.78941.7894
H82.17283.13642.80661.09533.82662.73721.78941.7774
H92.17283.13642.80661.09533.82662.73721.78941.7774

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 118.941 C1 C3 H6 121.497
C1 C4 H7 108.315 C1 C4 H8 110.208
C1 C4 H9 110.208 O2 C1 C3 122.099
O2 C1 C4 122.750 C3 C1 C4 115.151
H5 C3 H6 119.561 H7 C4 H8 109.823
H7 C4 H9 109.823 H8 C4 H9 108.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability