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

using model chemistry: B1B95/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-153.126695
Energy at 298.15K-153.128959
HF Energy-153.126695
Nuclear repulsion energy62.939207
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/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' 3156 3034 6.99      
2 A' 3043 2925 7.29      
3 A' 1956 1880 147.76      
4 A' 1420 1365 20.88      
5 A' 1320 1269 12.58      
6 A' 1034 994 15.05      
7 A' 877 843 3.48      
8 A' 459 442 4.83      
9 A" 3162 3039 0.47      
10 A" 1419 1364 12.33      
11 A" 929 893 0.07      
12 A" 118 113 1.70      

Unscaled Zero Point Vibrational Energy (zpe) 9446.7 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 9080.2 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/cc-pVDZ
ABC
2.78016 0.33398 0.31572

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.966 -0.655 0.000
C2 0.000 0.499 0.000
O3 1.183 0.462 0.000
H4 -0.440 -1.621 0.000
H5 -1.613 -0.568 0.883
H6 -1.613 -0.568 -0.883

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6
C11.50512.42211.10031.09821.0982
C21.50511.18352.16512.12622.1262
O32.42211.18352.64033.10793.1079
H41.10032.16512.64031.80741.8074
H51.09822.12623.10791.80741.7662
H61.09822.12623.10791.80741.7662

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 128.144 C2 C1 H4 111.462
C2 C1 H5 108.502 C2 C1 H6 108.502
H4 C1 H5 110.592 H4 C1 H6 110.592
H5 C1 H6 107.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.058      
2 C -0.031      
3 O -0.114      
4 H 0.055      
5 H 0.074      
6 H 0.074      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.958 -1.289 0.000 2.344
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.430 -0.109 0.000
y -0.109 -18.444 0.000
z 0.000 0.000 -16.732
Traceless
 xyz
x -0.842 -0.109 0.000
y -0.109 -0.863 0.000
z 0.000 0.000 1.705
Polar
3z2-r23.410
x2-y20.014
xy-0.109
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.273 0.476 0.000
y 0.476 3.467 0.000
z 0.000 0.000 2.727


<r2> (average value of r2) Å2
<r2> 43.963
(<r2>)1/2 6.630