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: PBEPBEultrafine/aug-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 PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-192.328202
Energy at 298.15K-192.332645
HF Energy-192.328202
Nuclear repulsion energy111.468226
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 PBEPBEultrafine/aug-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' 3183 3148 3.12      
2 A' 3083 3048 5.39      
3 A' 3070 3036 3.63      
4 A' 2968 2935 2.64      
5 A' 1541 1524 81.73      
6 A' 1422 1406 20.16      
7 A' 1404 1388 29.97      
8 A' 1331 1316 34.26      
9 A' 1236 1222 41.35      
10 A' 1028 1016 4.18      
11 A' 897 887 3.58      
12 A' 802 793 5.41      
13 A' 507 502 12.16      
14 A' 372 368 2.68      
15 A" 3027 2994 6.15      
16 A" 1420 1404 8.49      
17 A" 980 969 6.01      
18 A" 735 726 24.20      
19 A" 479 474 1.69      
20 A" 299 296 0.01      
21 A" 46 46 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14915.0 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 14748.0 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
0.36140 0.30162 0.16962

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.145 0.000
O2 0.472 1.296 0.000
C3 -1.427 -0.056 0.000
C4 0.898 -1.080 0.000
H5 -2.077 0.818 0.000
H6 -1.872 -1.052 0.000
H7 1.947 -0.769 0.000
H8 0.700 -1.705 0.884
H9 0.700 -1.705 -0.884

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.24401.44081.51852.18302.22152.15122.16612.1661
O21.24402.33082.41372.59293.31732.53813.13623.1362
C31.44082.33082.53971.08931.09063.44852.83232.8323
C41.51852.41372.53973.52822.76931.09481.10031.1003
H52.18302.59291.08933.52821.88114.32573.85433.8543
H62.22153.31731.09062.76931.88113.82942.79682.7968
H72.15122.53813.44851.09484.32573.82941.79201.7920
H82.16613.13622.83231.10033.85432.79681.79201.7682
H92.16613.13622.83231.10033.85432.79681.79201.7682

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 118.612 C1 C3 H6 122.099
C1 C4 H7 109.749 C1 C4 H8 110.599
C1 C4 H9 110.599 O2 C1 C3 120.312
O2 C1 C4 121.475 C3 C1 C4 118.213
H5 C3 H6 119.289 H7 C4 H8 109.453
H7 C4 H9 109.453 H8 C4 H9 106.937
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.540      
2 O -0.602      
3 C -0.723      
4 C -0.494      
5 H 0.322      
6 H 0.317      
7 H 0.201      
8 H 0.219      
9 H 0.219      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.376 -2.733 0.000 3.060
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.866 -1.709 0.000
y -1.709 -27.262 0.000
z 0.000 0.000 -24.895
Traceless
 xyz
x 3.213 -1.709 0.000
y -1.709 -3.382 0.000
z 0.000 0.000 0.169
Polar
3z2-r20.337
x2-y24.396
xy-1.709
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.726 0.111 0.000
y 0.111 7.316 0.000
z 0.000 0.000 4.894


<r2> (average value of r2) Å2
<r2> 77.353
(<r2>)1/2 8.795