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

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-152.278437
Energy at 298.15K-152.280646
HF Energy-152.278437
Nuclear repulsion energy62.183670
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 wB97X-D/3-21G*
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' 3174 3008 5.35      
2 A' 3083 2922 3.36      
3 A' 1886 1788 88.33      
4 A' 1523 1444 26.62      
5 A' 1426 1351 32.69      
6 A' 1078 1021 17.26      
7 A' 824 781 6.24      
8 A' 444 421 4.35      
9 A" 3177 3011 0.24      
10 A" 1527 1447 21.34      
11 A" 1003 950 1.62      
12 A" 87 83 2.96      

Unscaled Zero Point Vibrational Energy (zpe) 9614.6 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 9112.7 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 wB97X-D/3-21G*
ABC
2.86390 0.32080 0.30489

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.979 -0.681 0.000
C2 0.000 0.488 0.000
O3 1.197 0.500 0.000
H4 -0.457 -1.644 0.000
H5 -1.620 -0.599 0.883
H6 -1.620 -0.599 -0.883

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.52522.47581.09581.09371.0937
C21.52521.19672.18032.14132.1413
O32.47581.19672.70703.14953.1495
H41.09582.18032.70701.79561.7956
H51.09372.14133.14951.79561.7660
H61.09372.14133.14951.79561.7660

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 130.516 C2 C1 H4 111.536
C2 C1 H5 108.579 C2 C1 H6 108.579
H4 C1 H5 110.187 H4 C1 H6 110.187
H5 C1 H6 107.667
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability