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

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-153.140303
Energy at 298.15K-153.142566
HF Energy-153.140303
Nuclear repulsion energy62.942884
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 mPW1PW91/6-31G**
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' 3170 3016 7.40      
2 A' 3066 2917 4.92      
3 A' 1977 1881 135.80      
4 A' 1471 1399 20.28      
5 A' 1367 1301 15.46      
6 A' 1059 1007 16.42      
7 A' 881 838 4.04      
8 A' 466 444 5.63      
9 A" 3173 3019 1.36      
10 A" 1470 1398 13.14      
11 A" 951 905 0.29      
12 A" 109 103 1.23      

Unscaled Zero Point Vibrational Energy (zpe) 9579.4 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 9114.8 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 mPW1PW91/6-31G**
ABC
2.80502 0.33306 0.31501

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

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 -0.447 -1.617 0.000
H5 -1.612 -0.573 0.878
H6 -1.612 -0.573 -0.878

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.50592.42621.09371.09231.0923
C21.50591.18512.16182.12502.1250
O32.42621.18512.64423.10903.1090
H41.09372.16182.64421.79441.7944
H51.09232.12503.10901.79441.7568
H61.09232.12503.10901.79441.7568

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 128.348 C2 C1 H4 111.544
C2 C1 H5 108.707 C2 C1 H6 108.707
H4 C1 H5 110.346 H4 C1 H6 110.346
H5 C1 H6 107.062
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.481      
2 C 0.277      
3 O -0.321      
4 H 0.169      
5 H 0.178      
6 H 0.178      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.143 -1.300 0.000 2.507
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.555 -0.146 0.000
y -0.146 -18.145 0.000
z 0.000 0.000 -16.605
Traceless
 xyz
x -1.180 -0.146 0.000
y -0.146 -0.565 0.000
z 0.000 0.000 1.745
Polar
3z2-r23.490
x2-y2-0.409
xy-0.146
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.189 0.409 0.000
y 0.409 3.180 0.000
z 0.000 0.000 2.630


<r2> (average value of r2) Å2
<r2> 43.942
(<r2>)1/2 6.629