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

using model chemistry: HF/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 HF/cc-pVDZ
 hartrees
Energy at 0K-152.311961
Energy at 298.15K-152.314326
HF Energy-152.311961
Nuclear repulsion energy63.367857
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 HF/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' 3290 2987 10.02      
2 A' 3188 2895 7.23      
3 A' 2132 1936 250.54      
4 A' 1554 1411 18.92      
5 A' 1468 1333 7.94      
6 A' 1140 1035 17.06      
7 A' 924 839 1.71      
8 A' 506 460 8.35      
9 A" 3289 2986 5.61      
10 A" 1559 1416 11.65      
11 A" 1028 933 0.00      
12 A" 118 107 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 10097.9 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 9168.9 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 HF/cc-pVDZ
ABC
2.88791 0.33405 0.31705

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/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 0.491 0.000
O3 1.162 0.500 0.000
H4 -0.399 -1.622 0.000
H5 -1.591 -0.615 0.881
H6 -1.591 -0.615 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.51162.42281.09101.09011.0901
C21.51161.16222.15112.12872.1287
O32.42281.16222.63473.09813.0981
H41.09102.15112.63471.79191.7919
H51.09012.12873.09811.79191.7626
H61.09012.12873.09811.79191.7626

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 129.490 C2 C1 H4 110.440
C2 C1 H5 108.733 C2 C1 H6 108.733
H4 C1 H5 110.483 H4 C1 H6 110.483
H5 C1 H6 107.899
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.062      
2 C 0.076      
3 O -0.221      
4 H 0.065      
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
  -2.398 -1.301 0.000 2.728
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.351 -0.464 0.000
y -0.464 -18.477 0.000
z 0.000 0.000 -16.859
Traceless
 xyz
x -1.683 -0.464 0.000
y -0.464 -0.372 0.000
z 0.000 0.000 2.055
Polar
3z2-r24.110
x2-y2-0.874
xy-0.464
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.997 0.346 0.000
y 0.346 3.193 0.000
z 0.000 0.000 2.627


<r2> (average value of r2) Å2
<r2> 44.038
(<r2>)1/2 6.636