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All results from a given calculation for CH3CO (Acetyl radical)

using model chemistry: B3LYP/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 B3LYP/6-31G*
 hartrees
Energy at 0K-153.179833
Energy at 298.15K-153.182084
HF Energy-153.179833
Nuclear repulsion energy62.666066
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 B3LYP/6-31G*
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' 855 821 5.00      
2 A' 463 445 5.32      
3 A" 3137 3012 3.25      
4 A" 1485 1426 11.17      
5 A" 963 924 0.11      
6 A" 109 105 1.16      
7 A' 3133 3009 10.27      
8 A' 3043 2923 7.12      
9 A' 1939 1862 122.85      
10 A' 1488 1429 18.93      
11 A' 1382 1327 11.01      
12 A' 1059 1017 15.87      

Unscaled Zero Point Vibrational Energy (zpe) 9526.9 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 9148.6 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 B3LYP/6-31G*
ABC
2.76147 0.33041 0.31221

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.971 -0.661 0.000
C2 0.000 0.505 0.000
O3 1.188 0.465 0.000
H4 -0.445 -1.623 0.000
H5 -1.617 -0.582 0.881
H6 -1.617 -0.582 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.51752.43571.09671.09511.0951
C21.51751.18912.17422.13792.1379
O32.43571.18912.65143.12093.1209
H41.09672.17422.65141.79821.7982
H51.09512.13793.12091.79821.7627
H61.09512.13793.12091.79821.7627

picture of Acetyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 127.884 C2 C1 H4 111.531
C2 C1 H5 108.754 C2 C1 H6 108.754
H4 C1 H5 110.249 H4 C1 H6 110.249
H5 C1 H6 107.183
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.525      
2 C 0.274      
3 O -0.311      
4 H 0.181      
5 H 0.190      
6 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.070 -1.268 0.000 2.428
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.669 -0.153 0.000
y -0.153 -18.259 0.000
z 0.000 0.000 -16.674
Traceless
 xyz
x -1.203 -0.153 0.000
y -0.153 -0.588 0.000
z 0.000 0.000 1.791
Polar
3z2-r23.581
x2-y2-0.410
xy-0.153
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.175 0.423 0.000
y 0.423 3.172 0.000
z 0.000 0.000 2.611


<r2> (average value of r2) Å2
<r2> 44.291
(<r2>)1/2 6.655