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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-152.941045
Energy at 298.15K-152.936117
HF Energy-152.298407
Nuclear repulsion energy63.377655
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 CBS-Q
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 3293 3293 12.26      
2 A 3290 3290 7.82      
3 A 3199 3199 6.20      
4 A 2141 2141 242.03      
5 A 1596 1596 9.96      
6 A 1595 1595 17.00      
7 A 1501 1501 7.37      
8 A 1154 1154 17.63      
9 A 1040 1040 0.00      
10 A 918 918 1.72      
11 A 506 506 8.63      
12 A 106 106 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 10169.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10169.8 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 CBS-Q
ABC
2.74243 0.32954 0.31130

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.173 1.176 -0.063
H2 -1.659 -0.233 0.912
H3 -1.709 -0.337 -0.838
C4 -1.168 0.093 -0.001
C5 0.254 -0.423 -0.001
O6 1.253 0.171 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 C5 O6
H11.78081.78301.08492.14422.6261
H21.78081.75391.08652.12803.0771
H31.78301.75391.08582.13553.1194
C41.08491.08651.08581.51242.4213
C52.14422.12802.13551.51241.1619
O62.62613.07713.11942.42131.1619

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 60.581 C2 C1 H4 34.933
C2 C1 H5 64.892 C2 C1 H6 86.328
H4 C1 H5 41.454 H4 C1 H6 67.175
H5 C1 H6 25.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability