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

using model chemistry: CCSD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CCSD/cc-pVDZ
 hartrees
Energy at 0K-152.770280
Energy at 298.15K-152.772555
HF Energy-152.309971
Nuclear repulsion energy62.448878
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 CCSD/cc-pVDZ
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' 3168 3001        
2 A' 3062 2900        
3 A' 1952 1849        
4 A' 1461 1384        
5 A' 1358 1287        
6 A' 1051 995        
7 A' 874 828        
8 A' 468 443        
9 A" 3177 3010        
10 A" 1463 1386        
11 A" 953 903        
12 A" 113 107        

Unscaled Zero Point Vibrational Energy (zpe) 9549.6 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 9046.3 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 CCSD/cc-pVDZ
ABC
2.72711 0.32807 0.31013

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.974 -0.670 0.000
C2 0.000 0.508 0.000
O3 1.188 0.473 0.000
H4 -0.425 -1.629 0.000
H5 -1.618 -0.592 0.892
H6 -1.618 -0.592 -0.892

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.52832.44501.10541.10291.1029
C21.52831.18852.17922.15012.1501
O32.44501.18852.64943.13063.1306
H41.10542.17922.64941.81491.8149
H51.10292.15013.13061.81491.7844
H61.10292.15013.13061.81491.7844

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 127.874 C2 C1 H4 110.649
C2 C1 H5 108.523 C2 C1 H6 108.523
H4 C1 H5 110.540 H4 C1 H6 110.540
H5 C1 H6 107.984
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability