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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-153.126727
Energy at 298.15K-153.128972
HF Energy-153.126727
Nuclear repulsion energy62.989582
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 B1B95/6-31+G**
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' 3157 3020 7.47      
2 A' 3051 2919 6.60      
3 A' 1955 1871 169.97      
4 A' 1455 1391 24.60      
5 A' 1353 1294 18.60      
6 A' 1048 1003 16.93      
7 A' 878 840 4.17      
8 A' 466 446 5.96      
9 A" 3163 3025 0.32      
10 A" 1451 1388 16.53      
11 A" 946 905 0.00      
12 A" 100 96 1.23      

Unscaled Zero Point Vibrational Energy (zpe) 9510.8 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 9098.0 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 B1B95/6-31+G**
ABC
2.81496 0.33349 0.31553

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.968 -0.655 0.000
C2 0.000 0.495 0.000
O3 1.184 0.463 0.000
H4 -0.446 -1.616 0.000
H5 -1.611 -0.567 0.879
H6 -1.611 -0.567 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.50302.42521.09411.09201.0920
C21.50301.18482.15842.12012.1201
O32.42521.18482.64293.10573.1057
H41.09412.15842.64291.79661.7966
H51.09202.12013.10571.79661.7571
H61.09202.12013.10571.79661.7571

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 128.544 C2 C1 H4 111.447
C2 C1 H5 108.534 C2 C1 H6 108.534
H4 C1 H5 110.532 H4 C1 H6 110.532
H5 C1 H6 107.130
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.390      
2 C 0.075      
3 O -0.275      
4 H 0.191      
5 H 0.199      
6 H 0.199      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.231 -1.484 0.000 2.679
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.224 0.019 0.000
y 0.019 -18.929 0.000
z 0.000 0.000 -17.138
Traceless
 xyz
x -1.191 0.019 0.000
y 0.019 -0.748 0.000
z 0.000 0.000 1.939
Polar
3z2-r23.877
x2-y2-0.295
xy0.019
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.981 0.327 0.000
y 0.327 4.101 0.000
z 0.000 0.000 3.201


<r2> (average value of r2) Å2
<r2> 44.300
(<r2>)1/2 6.656