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

using model chemistry: ROHF/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 ROHF/3-21G*
 hartrees
Energy at 0K-190.259832
Energy at 298.15K-190.264716
HF Energy-190.259832
Nuclear repulsion energy112.214497
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 ROHF/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' 3460 3144 2.85      
2 A' 3343 3037 1.42      
3 A' 3309 3006 7.18      
4 A' 3202 2909 3.21      
5 A' 1879 1707 112.13      
6 A' 1631 1481 12.57      
7 A' 1600 1454 15.75      
8 A' 1559 1416 34.30      
9 A' 1333 1211 105.10      
10 A' 1177 1069 5.35      
11 A' 1004 912 9.00      
12 A' 838 761 0.12      
13 A' 551 501 18.66      
14 A' 418 380 1.68      
15 A" 3254 2956 10.81      
16 A" 1650 1499 13.66      
17 A" 1163 1056 8.76      
18 A" 709 644 47.55      
19 A" 574 521 6.48      
20 A" 355 323 0.35      
21 A" 129 117 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 16567.6 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 15051.6 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 ROHF/3-21G*
ABC
0.35963 0.30786 0.17110

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.164 0.000
O2 0.370 1.325 0.000
C3 -1.419 -0.187 0.000
C4 0.970 -0.999 0.000
H5 -2.146 0.597 0.000
H6 -1.735 -1.209 0.000
H7 1.982 -0.621 0.000
H8 0.815 -1.617 0.878
H9 0.815 -1.617 -0.878

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.21791.46141.51442.18942.21252.13222.14672.1467
O21.21792.34162.39952.61903.29372.52713.10213.1021
C31.46142.34162.52301.06971.06983.42852.79372.7937
C41.51442.39952.52303.50122.71331.08001.08511.0851
H52.18942.61901.06973.50121.85234.30453.80033.8003
H62.21253.29371.06982.71331.85233.76332.72742.7274
H72.13222.52713.42851.08004.30453.76331.76781.7678
H82.14673.10212.79371.08513.80032.72741.76781.7555
H92.14673.10212.79371.08513.80032.72741.76781.7555

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 118.956 C1 C3 H6 121.100
C1 C4 H7 109.398 C1 C4 H8 110.248
C1 C4 H9 110.248 O2 C1 C3 121.580
O2 C1 C4 122.478 C3 C1 C4 115.941
H5 C3 H6 119.945 H7 C4 H8 109.471
H7 C4 H9 109.471 H8 C4 H9 107.982
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.465      
2 O -0.559      
3 C -0.422      
4 C -0.674      
5 H 0.255      
6 H 0.227      
7 H 0.251      
8 H 0.229      
9 H 0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.141 -3.014 0.000 3.223
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.681 -1.515 0.000
y -1.515 -27.625 -0.000
z 0.000 -0.000 -24.795
Traceless
 xyz
x 3.529 -1.515 0.000
y -1.515 -3.887 -0.000
z 0.000 -0.000 0.358
Polar
3z2-r20.716
x2-y24.944
xy-1.515
xz0.000
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 76.693
(<r2>)1/2 8.757