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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B2PLYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/6-31G**
 hartrees
Energy at 0K-345.453197
Energy at 298.15K-345.461676
HF Energy-345.106741
Nuclear repulsion energy296.286277
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 B2PLYP/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 3211 3211 7.01      
2 A 3156 3156 5.71      
3 A 3120 3120 2.84      
4 A 3084 3084 0.25      
5 A 1806 1806 16.63      
6 A 1511 1511 17.44      
7 A 1509 1509 3.11      
8 A 1495 1495 6.90      
9 A 1419 1419 6.57      
10 A 1292 1292 26.44      
11 A 1160 1160 1.39      
12 A 1092 1092 0.50      
13 A 956 956 1.20      
14 A 800 800 0.21      
15 A 629 629 1.27      
16 A 488 488 6.96      
17 A 322 322 0.75      
18 A 176 176 0.12      
19 A 145 145 0.89      
20 A 61 61 7.13      
21 B 3211 3211 7.01      
22 B 3193 3193 5.81      
23 B 3156 3156 1.06      
24 B 3084 3084 3.14      
25 B 1782 1782 249.06      
26 B 1510 1510 0.91      
27 B 1503 1503 24.10      
28 B 1420 1420 81.78      
29 B 1275 1275 119.78      
30 B 1211 1211 142.84      
31 B 1077 1077 5.57      
32 B 1015 1015 0.65      
33 B 911 911 17.89      
34 B 812 812 8.49      
35 B 546 546 25.88      
36 B 498 498 1.30      
37 B 414 414 1.24      
38 B 176 176 0.36      
39 B 52 52 11.30      

Unscaled Zero Point Vibrational Energy (zpe) 27138.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 27138.6 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 B2PLYP/6-31G**
ABC
0.13641 0.06589 0.05180

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.021
C2 0.000 1.230 0.107
C3 0.000 -1.230 0.107
C4 -1.357 1.747 -0.304
C5 1.357 -1.747 -0.304
O6 1.049 1.706 -0.294
O7 -1.049 -1.706 -0.294
H8 -0.898 -0.031 1.638
H9 0.898 0.031 1.638
H10 -1.249 2.505 -1.076
H11 -1.971 0.916 -0.659
H12 -1.865 2.175 0.564
H13 1.249 -2.505 -1.076
H14 1.971 -0.916 -0.659
H15 1.865 -2.175 0.564

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53171.53172.57782.57782.39522.39521.08991.08993.49752.74752.90123.49752.74752.9012
C21.53172.45931.50893.29661.21973.14272.17672.14122.14192.13842.14044.11203.01323.9087
C31.53172.45933.29661.50893.14271.21972.14122.17674.11203.01323.90872.14192.13842.1404
C42.57781.50893.29664.42322.40593.46582.67213.43441.08781.09261.09335.04614.27705.1489
C52.57783.29661.50894.42323.46582.40593.43442.67215.04614.27705.14891.08781.09261.0933
O62.39521.21973.14272.40593.46584.00453.24612.56082.55593.14313.07404.28722.80334.0569
O72.39523.14271.21973.46582.40594.00452.56083.24614.28722.80334.05692.55593.14313.0740
H81.08992.17672.14122.67213.43443.24612.56081.79673.73112.70682.63714.25383.78063.6582
H91.08992.14122.17673.43442.67212.56083.24611.79674.25383.78063.65823.73112.70682.6371
H103.49752.14194.11201.08785.04612.55594.28723.73114.25381.79421.78315.59844.71715.8558
H112.74752.13843.01321.09264.27703.14312.80332.70683.78061.79421.75844.71714.34785.0766
H122.90122.14043.90871.09335.14893.07404.05692.63713.65821.78311.75845.85585.07665.7302
H133.49754.11202.14195.04611.08784.28722.55594.25383.73115.59844.71715.85581.79421.7831
H142.74753.01322.13844.27701.09262.80333.14313.78062.70684.71714.34785.07661.79421.7584
H152.90123.90872.14045.14891.09334.05693.07403.65822.63715.85585.07665.73021.78311.7584

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.942 C1 C2 O6 120.623
C1 C3 C5 115.942 C1 C3 O7 120.623
C2 C1 C3 106.796 C2 C1 H8 111.134
C2 C1 H9 108.339 C2 C4 H10 110.091
C2 C4 H11 109.524 C2 C4 H12 109.647
C3 C1 H8 108.339 C3 C1 H9 111.134
C3 C5 H13 110.091 C3 C5 H14 109.524
C3 C5 H15 109.647 C4 C2 O6 123.361
C5 C3 O7 123.361 H8 C1 H9 111.029
H10 C4 H11 110.746 H10 C4 H12 109.673
H11 C4 H12 107.106 H13 C5 H14 110.746
H13 C5 H15 109.673 H14 C5 H15 107.106
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.325      
2 C 0.408      
3 C 0.408      
4 C -0.398      
5 C -0.398      
6 O -0.421      
7 O -0.421      
8 H 0.139      
9 H 0.139      
10 H 0.143      
11 H 0.155      
12 H 0.137      
13 H 0.143      
14 H 0.155      
15 H 0.137      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.521 1.521
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.582 -8.894 0.000
y -8.894 -45.353 0.000
z 0.000 0.000 -40.119
Traceless
 xyz
x -0.846 -8.894 0.000
y -8.894 -3.502 0.000
z 0.000 0.000 4.348
Polar
3z2-r28.697
x2-y21.771
xy-8.894
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.986 -0.180 0.000
y -0.180 8.873 0.000
z 0.000 0.000 6.803


<r2> (average value of r2) Å2
<r2> 229.070
(<r2>)1/2 15.135