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: B3PW91/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 B3PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-192.494960
Energy at 298.15K-192.499577
HF Energy-192.494960
Nuclear repulsion energy112.216641
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 B3PW91/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' 3263 3150 2.35      
2 A' 3155 3045 5.99      
3 A' 3148 3038 2.20      
4 A' 3040 2934 2.76      
5 A' 1609 1553 83.07      
6 A' 1467 1416 18.43      
7 A' 1450 1400 31.51      
8 A' 1385 1336 32.24      
9 A' 1272 1227 48.93      
10 A' 1062 1025 4.54      
11 A' 923 891 4.69      
12 A' 826 797 3.13      
13 A' 524 506 13.84      
14 A' 381 368 2.74      
15 A" 3102 2994 7.01      
16 A" 1469 1418 8.78      
17 A" 1021 985 5.85      
18 A" 756 729 27.71      
19 A" 507 489 1.22      
20 A" 350 338 0.08      
21 A" 59 57 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 15383.7 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 14846.8 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 B3PW91/aug-cc-pVTZ
ABC
0.36725 0.30445 0.17174

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.145 0.000
O2 0.456 1.288 0.000
C3 -1.420 -0.067 0.000
C4 0.905 -1.065 0.000
H5 -2.074 0.795 0.000
H6 -1.852 -1.060 0.000
H7 1.945 -0.747 0.000
H8 0.714 -1.686 0.879
H9 0.714 -1.686 -0.879

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9
C11.23031.43611.51102.17312.20972.13962.15262.1526
O21.23032.31432.39542.57703.29232.52163.11133.1113
C31.43612.31432.53031.08171.08263.43312.81932.8193
C41.51102.39542.53033.51162.75711.08741.09251.0925
H52.17312.57701.08173.51161.86804.30423.83393.8339
H62.20973.29231.08262.75711.86803.80992.78422.7842
H72.13962.52163.43311.08744.30423.80991.77961.7796
H82.15263.11132.81931.09253.83392.78421.77961.7578
H92.15263.11132.81931.09253.83392.78421.77961.7578

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 118.657 C1 C3 H6 122.011
C1 C4 H7 109.786 C1 C4 H8 110.512
C1 C4 H9 110.512 O2 C1 C3 120.241
O2 C1 C4 121.471 C3 C1 C4 118.289
H5 C3 H6 119.332 H7 C4 H8 109.436
H7 C4 H9 109.436 H8 C4 H9 107.112
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.623      
2 O -0.678      
3 C -0.735      
4 C -0.539      
5 H 0.314      
6 H 0.341      
7 H 0.201      
8 H 0.237      
9 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.376 -2.797 0.000 3.117
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.434 -1.698 0.000
y -1.698 -26.977 0.000
z 0.000 0.000 -24.557
Traceless
 xyz
x 3.333 -1.698 0.000
y -1.698 -3.481 0.000
z 0.000 0.000 0.148
Polar
3z2-r20.297
x2-y24.543
xy-1.698
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.179 0.170 0.000
y 0.170 6.873 0.000
z 0.000 0.000 4.672


<r2> (average value of r2) Å2
<r2> 76.381
(<r2>)1/2 8.740