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

using model chemistry: wB97X-D/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-153.184800
Energy at 298.15K 
HF Energy-153.184800
Nuclear repulsion energy63.175601
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/cc-pVTZ
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' 3148 3010 7.60      
2 A' 3050 2916 6.38      
3 A' 1971 1885 156.65      
4 A' 1459 1395 19.14      
5 A' 1356 1296 15.68      
6 A' 1059 1012 15.93      
7 A' 862 824 5.46      
8 A' 475 454 5.82      
9 A" 3154 3015 1.21      
10 A" 1458 1394 12.25      
11 A" 946 905 0.00      
12 A" 60i 57i 0.97      

Unscaled Zero Point Vibrational Energy (zpe) 9439.4 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 9024.0 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/cc-pVTZ
ABC
2.82327 0.33483 0.31681

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.960 -0.666 0.000
C2 0.000 0.498 0.000
O3 1.173 0.475 0.000
H4 -0.426 -1.618 0.000
H5 -1.598 -0.587 0.879
H6 -1.598 -0.587 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.50922.41971.09161.08871.0887
C21.50921.17332.15832.12192.1219
O32.41971.17332.63413.09513.0951
H41.09162.15832.63411.79181.7918
H51.08872.12193.09511.79181.7574
H61.08872.12193.09511.79181.7574

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 128.423 C2 C1 H4 111.154
C2 C1 H5 108.443 C2 C1 H6 108.443
H4 C1 H5 110.532 H4 C1 H6 110.532
H5 C1 H6 107.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.179      
2 C 0.038      
3 O -0.146      
4 H 0.091      
5 H 0.099      
6 H 0.099      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.100 -1.404 0.000 2.526
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.809 -0.059 0.000
y -0.059 -18.575 0.000
z 0.000 0.000 -16.907
Traceless
 xyz
x -1.068 -0.059 0.000
y -0.059 -0.718 0.000
z 0.000 0.000 1.785
Polar
3z2-r23.571
x2-y2-0.233
xy-0.059
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.662 0.429 0.000
y 0.429 3.895 0.000
z 0.000 0.000 3.149


<r2> (average value of r2) Å2
<r2> 43.960
(<r2>)1/2 6.630