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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-152.353578
Energy at 298.15K-152.355821
HF Energy-152.353578
Nuclear repulsion energy62.953854
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' 3076 3018 7.01      
2 A' 2965 2910 6.19      
3 A' 1925 1889 115.68      
4 A' 1394 1367 24.39      
5 A' 1290 1265 26.08      
6 A' 1019 1000 15.47      
7 A' 886 870 3.97      
8 A' 446 438 4.88      
9 A" 3085 3028 0.09      
10 A" 1389 1363 16.02      
11 A" 900 883 0.91      
12 A" 123 121 3.05      

Unscaled Zero Point Vibrational Energy (zpe) 9248.6 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 9075.6 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 LSDA/6-31G**
ABC
2.77843 0.33596 0.31740

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 -0.634 0.000
C2 0.000 0.494 0.000
O3 1.191 0.442 0.000
H4 -0.464 -1.618 0.000
H5 -1.624 -0.540 0.881
H6 -1.624 -0.540 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.48742.41301.10531.10261.1026
C21.48741.19192.16252.11802.1180
O32.41301.19192.64263.10933.1093
H41.10532.16252.64261.81211.8121
H51.10262.11803.10931.81211.7630
H61.10262.11803.10931.81211.7630

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 128.148 C2 C1 H4 112.199
C2 C1 H5 108.823 C2 C1 H6 108.823
H4 C1 H5 110.316 H4 C1 H6 110.316
H5 C1 H6 106.165
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 -0.509      
2 C 0.224      
3 O -0.268      
4 H 0.171      
5 H 0.191      
6 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.078 -1.325 0.000 2.465
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.293 0.001 0.000
y 0.001 -18.305 0.000
z 0.000 0.000 -16.679
Traceless
 xyz
x -0.801 0.001 0.000
y 0.001 -0.819 0.000
z 0.000 0.000 1.620
Polar
3z2-r23.240
x2-y20.012
xy0.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.319 0.477 0.000
y 0.477 3.347 0.000
z 0.000 0.000 2.694


<r2> (average value of r2) Å2
<r2> 43.760
(<r2>)1/2 6.615