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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-345.744432
Energy at 298.15K-345.752855
HF Energy-345.744432
Nuclear repulsion energy296.585558
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3163 3045 9.28      
2 A 3108 2992 7.79      
3 A 3082 2967 3.61      
4 A 3043 2930 0.32      
5 A 1828 1759 23.07      
6 A 1485 1430 4.59      
7 A 1482 1426 23.66      
8 A 1468 1413 10.56      
9 A 1395 1343 7.29      
10 A 1281 1233 24.35      
11 A 1150 1107 2.37      
12 A 1081 1041 0.95      
13 A 941 906 1.14      
14 A 794 764 0.16      
15 A 626 603 2.02      
16 A 490 472 5.78      
17 A 320 308 0.80      
18 A 168 162 0.06      
19 A 142 137 0.98      
20 A 62 60 7.55      
21 B 3163 3045 11.05      
22 B 3152 3034 7.95      
23 B 3108 2992 1.03      
24 B 3043 2929 4.20      
25 B 1799 1732 349.17      
26 B 1481 1426 1.07      
27 B 1477 1422 33.03      
28 B 1394 1342 109.66      
29 B 1257 1210 135.56      
30 B 1192 1147 172.50      
31 B 1062 1022 8.64      
32 B 999 962 0.97      
33 B 896 863 24.64      
34 B 810 780 10.53      
35 B 549 529 27.10      
36 B 502 483 0.99      
37 B 409 393 1.31      
38 B 169 163 0.43      
39 B 46 44 10.57      

Unscaled Zero Point Vibrational Energy (zpe) 26807.3 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 25807.4 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 B3PW91/6-311G*
ABC
0.13851 0.06522 0.05141

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.001
C2 0.000 1.236 0.099
C3 0.000 -1.236 0.099
C4 -1.355 1.762 -0.292
C5 1.355 -1.762 -0.292
O6 1.036 1.715 -0.294
O7 -1.036 -1.715 -0.294
H8 -0.897 -0.033 1.622
H9 0.897 0.033 1.622
H10 -1.258 2.525 -1.063
H11 -1.993 0.944 -0.640
H12 -1.850 2.195 0.585
H13 1.258 -2.525 -1.063
H14 1.993 -0.944 -0.640
H15 1.850 -2.195 0.585

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53071.53072.57172.57172.38622.38621.09161.09163.49612.74942.90063.49612.74942.9006
C21.53072.47251.50533.31351.20743.15282.17662.13842.14362.14592.13974.13323.04523.9284
C31.53072.47253.31351.50533.15281.20742.13842.17664.13323.04523.92842.14362.14592.1397
C42.57171.50533.31354.44622.39243.49212.66353.42421.08961.09441.09575.08044.31975.1674
C52.57173.31351.50534.44623.49212.39243.42422.66355.08044.31975.16741.08961.09441.0957
O62.38621.20743.15282.39243.49214.00843.23532.55312.55243.14573.05524.31582.84754.0896
O72.38623.15281.20743.49212.39244.00842.55313.23534.31582.84754.08962.55243.14573.0552
H81.09162.17662.13842.66353.42423.23532.55311.79603.72642.69692.63584.25053.78203.6464
H91.09162.13842.17663.42422.66352.55313.23531.79604.25053.78203.64643.72642.69692.6358
H103.49612.14364.13321.08965.08042.55244.31583.72644.25051.79441.78195.64334.77405.8874
H112.74942.14593.04521.09444.31973.14572.84752.69693.78201.79441.75684.77404.41145.1114
H122.90062.13973.92841.09575.16743.05524.08962.63583.64641.78191.75685.88745.11145.7412
H133.49614.13322.14365.08041.08964.31582.55244.25053.72645.64334.77405.88741.79441.7819
H142.74943.04522.14594.31971.09442.84753.14573.78202.69694.77404.41145.11141.79441.7568
H152.90063.92842.13975.16741.09574.08963.05523.64642.63585.88745.11145.74121.78191.7568

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.783 C1 C2 O6 120.804
C1 C3 C5 115.783 C1 C3 O7 120.804
C2 C1 C3 107.728 C2 C1 H8 111.093
C2 C1 H9 108.096 C2 C4 H10 110.370
C2 C4 H11 110.266 C2 C4 H12 109.700
C3 C1 H8 108.096 C3 C1 H9 111.093
C3 C5 H13 110.370 C3 C5 H14 110.266
C3 C5 H15 109.700 C4 C2 O6 123.377
C5 C3 O7 123.377 H8 C1 H9 110.708
H10 C4 H11 110.493 H10 C4 H12 109.259
H11 C4 H12 106.678 H13 C5 H14 110.493
H13 C5 H15 109.259 H14 C5 H15 106.678
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.617      
2 C 0.319      
3 C 0.319      
4 C -0.733      
5 C -0.733      
6 O -0.297      
7 O -0.297      
8 H 0.259      
9 H 0.259      
10 H 0.253      
11 H 0.261      
12 H 0.247      
13 H 0.253      
14 H 0.261      
15 H 0.247      


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 1.577 1.577
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.599 -9.146 0.000
y -9.146 -45.597 0.000
z 0.000 0.000 -40.153
Traceless
 xyz
x -0.725 -9.146 0.000
y -9.146 -3.721 0.000
z 0.000 0.000 4.446
Polar
3z2-r28.892
x2-y21.998
xy-9.146
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.529 -0.410 0.000
y -0.410 9.664 0.000
z 0.000 0.000 7.236


<r2> (average value of r2) Å2
<r2> 230.149
(<r2>)1/2 15.171