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

using model chemistry: ROHF/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-152.307392
Energy at 298.15K-152.309779
HF Energy-152.307392
Nuclear repulsion energy63.402335
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/cc-pVDZ
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' 939 808 0.95      
2 A' 509 438 8.71      
3 A" 3290 2832 5.42      
4 A" 1559 1342 11.89      
5 A" 1028 885 0.00      
6 A" 127 109 0.01      
7 A' 3293 2834 8.74      
8 A' 3191 2746 6.14      
9 A' 2143 1844 265.80      
10 A' 1555 1338 18.82      
11 A' 1472 1267 8.42      
12 A' 1153 993 16.00      

Unscaled Zero Point Vibrational Energy (zpe) 10128.7 cm-1
Scaled (by 0.8607) Zero Point Vibrational Energy (zpe) 8717.8 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/cc-pVDZ
ABC
2.90987 0.33391 0.31719

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.953 -0.682 0.000
C2 0.000 0.488 0.000
O3 1.162 0.503 0.000
H4 -0.396 -1.621 0.000
H5 -1.590 -0.616 0.882
H6 -1.590 -0.616 -0.882

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.50892.42371.09091.09001.0900
C21.50891.16172.14532.12722.1272
O32.42371.16172.63343.09873.0987
H41.09092.14532.63341.79221.7922
H51.09002.12723.09871.79221.7632
H61.09002.12723.09871.79221.7632

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 129.879 C2 C1 H4 110.177
C2 C1 H5 108.798 C2 C1 H6 108.798
H4 C1 H5 110.526 H4 C1 H6 110.526
H5 C1 H6 107.955
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.060      
2 C 0.082      
3 O -0.231      
4 H 0.066      
5 H 0.071      
6 H 0.071      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.455 -1.288 0.000 2.772
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.414 -0.492 0.000
y -0.492 -18.438 -0.000
z 0.000 -0.000 -16.851
Traceless
 xyz
x -1.769 -0.492 0.000
y -0.492 -0.305 -0.000
z 0.000 -0.000 2.074
Polar
3z2-r24.149
x2-y2-0.976
xy-0.492
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> 44.027
(<r2>)1/2 6.635