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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-153.001466
Energy at 298.15K-153.003732
HF Energy-153.001466
Nuclear repulsion energy62.901254
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 PBE1PBE/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' 3167 3010 7.40      
2 A' 3067 2915 5.03      
3 A' 1980 1881 134.11      
4 A' 1484 1410 21.36      
5 A' 1380 1312 16.29      
6 A' 1067 1014 16.16      
7 A' 887 843 3.97      
8 A' 467 443 5.48      
9 A" 3171 3013 1.25      
10 A" 1480 1407 13.72      
11 A" 959 912 0.35      
12 A" 110 105 1.29      

Unscaled Zero Point Vibrational Energy (zpe) 9608.9 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 9131.3 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 PBE1PBE/6-31G*
ABC
2.79749 0.33280 0.31476

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.968 -0.656 0.000
C2 0.000 0.498 0.000
O3 1.185 0.464 0.000
H4 -0.446 -1.619 0.000
H5 -1.614 -0.575 0.880
H6 -1.614 -0.575 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.50622.42651.09611.09461.0946
C21.50621.18552.16432.12832.1283
O32.42651.18552.64583.11203.1120
H41.09612.16432.64581.79731.7973
H51.09462.12833.11201.79731.7604
H61.09462.12833.11201.79731.7604

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 128.320 C2 C1 H4 111.572
C2 C1 H5 108.799 C2 C1 H6 108.799
H4 C1 H5 110.251 H4 C1 H6 110.251
H5 C1 H6 107.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability