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

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-153.020565
Energy at 298.15K-153.022814
HF Energy-152.880802
Nuclear repulsion energy62.630843
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 B2PLYP/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' 3176 3014 8.69      
2 A' 3081 2925 5.43      
3 A' 1909 1812 95.33      
4 A' 1510 1433 18.21      
5 A' 1404 1332 10.60      
6 A' 1075 1021 15.39      
7 A' 874 830 4.43      
8 A' 466 442 5.34      
9 A" 3179 3018 2.94      
10 A" 1508 1431 11.10      
11 A" 978 928 0.05      
12 A" 99 94 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 9629.0 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 9139.8 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 B2PLYP/6-31G*
ABC
2.75181 0.33057 0.31221

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.976 -0.654 0.000
C2 0.000 0.506 0.000
O3 1.193 0.456 0.000
H4 -0.450 -1.613 0.000
H5 -1.617 -0.574 0.881
H6 -1.617 -0.574 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.51602.43621.09401.09251.0925
C21.51601.19382.16662.13492.1349
O32.43621.19382.64203.11973.1197
H41.09402.16662.64201.79411.7941
H51.09252.13493.11971.79411.7615
H61.09252.13493.11971.79411.7615

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 127.664 C2 C1 H4 111.190
C2 C1 H5 108.772 C2 C1 H6 108.772
H4 C1 H5 110.281 H4 C1 H6 110.281
H5 C1 H6 107.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability