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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-191.336597
Energy at 298.15K-191.341329
HF Energy-191.336597
Nuclear repulsion energy111.626224
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 B1B95/3-21G
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' 3312 3168 2.84      
2 A' 3195 3057 4.08      
3 A' 3193 3054 1.99      
4 A' 3082 2948 2.01      
5 A' 1536 1470 10.72      
6 A' 1521 1455 21.55      
7 A' 1460 1397 19.33      
8 A' 1436 1374 43.35      
9 A' 1274 1219 49.77      
10 A' 1079 1032 3.43      
11 A' 957 915 4.63      
12 A' 825 789 3.03      
13 A' 502 481 12.09      
14 A' 390 373 1.98      
15 A" 3148 3012 7.75      
16 A" 1548 1481 13.73      
17 A" 1073 1026 11.14      
18 A" 815 780 40.11      
19 A" 533 510 4.06      
20 A" 440 421 0.19      
21 A" 52 50 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 15685.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 15005.9 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 B1B95/3-21G
ABC
0.35763 0.30673 0.17039

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.146 0.000
O2 0.539 1.287 0.000
C3 -1.411 -0.001 0.000
C4 0.828 -1.126 0.000
H5 -2.031 0.885 0.000
H6 -1.877 -0.977 0.000
H7 1.884 -0.860 0.000
H8 0.606 -1.729 0.885
H9 0.606 -1.729 -0.885

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.26181.41861.51812.16112.18752.13542.16072.1607
O21.26182.33692.43072.60123.31102.53313.14423.1442
C31.41862.33692.50571.08111.08173.40472.80022.8002
C41.51812.43072.50573.49522.70891.08921.09371.0937
H52.16112.60121.08113.49521.86814.28573.81743.8174
H62.18753.31101.08172.70891.86813.76272.74192.7419
H72.13542.53313.40471.08924.28573.76271.78081.7808
H82.16073.14422.80021.09373.81742.74191.78081.7708
H92.16073.14422.80021.09373.81742.74191.78081.7708

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 119.040 C1 C3 H6 121.479
C1 C4 H7 108.860 C1 C4 H8 110.592
C1 C4 H9 110.592 O2 C1 C3 121.236
O2 C1 C4 121.676 C3 C1 C4 117.089
H5 C3 H6 119.480 H7 C4 H8 109.333
H7 C4 H9 109.333 H8 C4 H9 108.109
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.326      
2 O -0.435      
3 C -0.382      
4 C -0.678      
5 H 0.244      
6 H 0.219      
7 H 0.245      
8 H 0.230      
9 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.463 -2.388 0.000 2.801
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.365 -1.695 0.000
y -1.695 -26.006 0.000
z 0.000 0.000 -24.473
Traceless
 xyz
x 2.874 -1.695 0.000
y -1.695 -2.587 0.000
z 0.000 0.000 -0.288
Polar
3z2-r2-0.575
x2-y23.641
xy-1.695
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.516 0.314 0.000
y 0.314 5.132 0.000
z 0.000 0.000 2.647


<r2> (average value of r2) Å2
<r2> 76.493
(<r2>)1/2 8.746