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

using model chemistry: LSDA/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 LSDA/6-31G*
 hartrees
Energy at 0K-152.349924
Energy at 298.15K-152.352173
Nuclear repulsion energy62.925409
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 LSDA/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' 3074 3016 7.19      
2 A' 2968 2913 6.66      
3 A' 1926 1890 114.71      
4 A' 1413 1387 25.92      
5 A' 1309 1285 26.60      
6 A' 1029 1010 15.34      
7 A' 891 875 4.27      
8 A' 448 439 4.85      
9 A" 3084 3027 0.03      
10 A" 1406 1380 16.80      
11 A" 913 896 1.05      
12 A" 125 122 3.05      

Unscaled Zero Point Vibrational Energy (zpe) 9293.0 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 9119.2 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 LSDA/6-31G*
ABC
2.77447 0.33565 0.31711

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.969 -0.635 0.000
C2 0.000 0.495 0.000
O3 1.191 0.444 0.000
H4 -0.463 -1.619 0.000
H5 -1.625 -0.544 0.883
H6 -1.625 -0.544 -0.883

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.48852.41391.10641.10361.1036
C21.48851.19182.16432.12082.1208
O32.41391.19182.64383.11143.1114
H41.10642.16432.64381.81261.8126
H51.10362.12083.11141.81261.7653
H61.10362.12083.11141.81261.7653

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 128.131 C2 C1 H4 112.196
C2 C1 H5 108.901 C2 C1 H6 108.901
H4 C1 H5 110.212 H4 C1 H6 110.212
H5 C1 H6 106.227
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.629      
2 C 0.240      
3 O -0.268      
4 H 0.206      
5 H 0.225      
6 H 0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.071 -1.320 0.000 2.456
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.311 -0.014 0.000
y -0.014 -18.318 0.000
z 0.000 0.000 -16.671
Traceless
 xyz
x -0.816 -0.014 0.000
y -0.014 -0.826 0.000
z 0.000 0.000 1.643
Polar
3z2-r23.286
x2-y20.007
xy-0.014
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.288 0.474 0.000
y 0.474 3.317 0.000
z 0.000 0.000 2.667


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000