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

using model chemistry: MP3=FULL/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 MP3=FULL/6-31G*
 hartrees
Energy at 0K-152.733198
Energy at 298.15K-152.735441
HF Energy-152.297022
Nuclear repulsion energy62.883337
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 MP3=FULL/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' 3206 3009 6.38      
2 A' 3109 2917 3.11      
3 A' 2057 1930 150.50      
4 A' 1522 1428 18.06      
5 A' 1423 1335 13.28      
6 A' 1093 1025 17.75      
7 A' 903 847 2.55      
8 A' 478 449 6.49      
9 A" 3208 3010 2.20      
10 A" 1520 1427 12.51      
11 A" 994 932 0.01      
12 A" 81 76 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 9796.8 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 9192.3 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 MP3=FULL/6-31G*
ABC
2.78240 0.33240 0.31431

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.968 -0.665 0.000
C2 0.000 0.501 0.000
O3 1.181 0.472 0.000
H4 -0.431 -1.618 0.000
H5 -1.607 -0.588 0.883
H6 -1.607 -0.588 -0.883

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.51522.43121.09461.09261.0926
C21.51521.18192.16322.13272.1327
O32.43121.18192.64003.11103.1110
H41.09462.16322.64001.79551.7955
H51.09262.13273.11101.79551.7658
H61.09262.13273.11101.79551.7658

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 128.263 C2 C1 H4 110.940
C2 C1 H5 108.650 C2 C1 H6 108.650
H4 C1 H5 110.352 H4 C1 H6 110.352
H5 C1 H6 107.812
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability