return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3COCH2 (Acetonyl radical)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-192.495020
Energy at 298.15K-192.499607
HF Energy-192.495020
Nuclear repulsion energy111.595495
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 B3LYPultrafine/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' 3283 3145 5.10      
2 A' 3171 3038 5.63      
3 A' 3165 3033 5.77      
4 A' 3050 2922 4.55      
5 A' 1611 1543 56.27      
6 A' 1502 1439 11.35      
7 A' 1482 1420 22.62      
8 A' 1417 1357 23.21      
9 A' 1281 1227 57.75      
10 A' 1076 1031 4.72      
11 A' 936 897 4.38      
12 A' 822 788 2.61      
13 A' 524 502 14.67      
14 A' 383 367 2.06      
15 A" 3108 2977 13.66      
16 A" 1508 1444 8.04      
17 A" 1037 994 6.36      
18 A" 745 713 29.78      
19 A" 505 484 0.68      
20 A" 378 362 0.03      
21 A" 45 43 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 15514.1 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 14862.6 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 B3LYPultrafine/6-31G*
ABC
0.36368 0.30050 0.16975

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.145 0.000
O2 0.485 1.286 0.000
C3 -1.429 -0.036 0.000
C4 0.888 -1.092 0.000
H5 -2.065 0.842 0.000
H6 -1.888 -1.021 0.000
H7 1.935 -0.784 0.000
H8 0.693 -1.713 0.883
H9 0.693 -1.713 -0.883

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.23891.44021.52262.17962.21942.14722.17112.1711
O21.23892.32552.41112.58823.30902.52783.13283.1328
C31.44022.32552.54561.08481.08623.44632.84492.8449
C41.52262.41112.54563.52992.77731.09171.09691.0969
H52.17962.58821.08483.52991.87094.31873.86233.8623
H62.21943.30901.08622.77731.87093.83122.81512.8151
H72.14722.52783.44631.09174.31873.83121.78451.7845
H82.17113.13282.84491.09693.86232.81511.78451.7656
H92.17113.13282.84491.09693.86232.81511.78451.7656

picture of Acetonyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 118.682 C1 C3 H6 122.294
C1 C4 H7 109.324 C1 C4 H8 110.906
C1 C4 H9 110.906 O2 C1 C3 120.275
O2 C1 C4 121.305 C3 C1 C4 118.419
H5 C3 H6 119.024 H7 C4 H8 109.242
H7 C4 H9 109.242 H8 C4 H9 107.175
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.445      
2 O -0.443      
3 C -0.320      
4 C -0.533      
5 H 0.178      
6 H 0.160      
7 H 0.181      
8 H 0.167      
9 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.385 -2.538 0.000 2.891
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.309 -1.579 0.000
y -1.579 -26.296 0.000
z 0.000 0.000 -24.125
Traceless
 xyz
x 2.901 -1.579 0.000
y -1.579 -3.078 0.000
z 0.000 0.000 0.177
Polar
3z2-r20.354
x2-y23.986
xy-1.579
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.897 0.287 0.000
y 0.287 5.595 0.000
z 0.000 0.000 3.070


<r2> (average value of r2) Å2
<r2> 76.835
(<r2>)1/2 8.766