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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-345.822833
Energy at 298.15K-345.831186
HF Energy-345.822833
Nuclear repulsion energy294.690497
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 B3LYP/6-31+G**
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 3162 3049 6.45      
2 A 3104 2992 5.54      
3 A 3080 2970 2.96      
4 A 3041 2932 0.52      
5 A 1799 1735 22.57      
6 A 1484 1431 5.39      
7 A 1478 1425 21.22      
8 A 1465 1413 6.51      
9 A 1395 1345 3.89      
10 A 1272 1226 23.33      
11 A 1145 1104 1.53      
12 A 1076 1038 0.46      
13 A 941 907 1.14      
14 A 786 758 0.11      
15 A 624 602 1.54      
16 A 485 468 6.03      
17 A 322 311 0.85      
18 A 160 154 0.01      
19 A 142 137 1.29      
20 A 54 52 9.10      
21 B 3162 3049 8.60      
22 B 3149 3036 5.18      
23 B 3103 2992 0.36      
24 B 3040 2932 3.37      
25 B 1770 1707 387.68      
26 B 1478 1425 1.26      
27 B 1470 1417 29.72      
28 B 1394 1344 87.44      
29 B 1261 1215 103.77      
30 B 1190 1147 191.93      
31 B 1061 1023 8.32      
32 B 999 963 0.99      
33 B 896 864 25.64      
34 B 802 773 12.03      
35 B 547 527 25.52      
36 B 498 480 1.33      
37 B 410 395 2.04      
38 B 160 154 0.17      
39 B 39 38 12.18      

Unscaled Zero Point Vibrational Energy (zpe) 26721.1 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 25764.5 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 B3LYP/6-31+G**
ABC
0.13811 0.06377 0.05039

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.996
C2 0.000 1.248 0.099
C3 0.000 -1.248 0.099
C4 -1.351 1.797 -0.295
C5 1.351 -1.797 -0.295
O6 1.050 1.731 -0.287
O7 -1.050 -1.731 -0.287
H8 -0.899 -0.031 1.616
H9 0.899 0.031 1.616
H10 -1.235 2.581 -1.045
H11 -1.989 0.991 -0.675
H12 -1.851 2.207 0.591
H13 1.235 -2.581 -1.045
H14 1.989 -0.991 -0.675
H15 1.851 -2.207 0.591

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53671.53672.59242.59242.39612.39611.09271.09273.51462.78052.90903.51462.78052.9090
C21.53672.49541.51063.35411.21803.18142.17872.14252.14762.14992.14244.18273.09313.9502
C31.53672.49543.35411.51063.18141.21802.14252.17874.18273.09313.95022.14762.14992.1424
C42.59241.51063.35414.49622.40153.54052.68353.43991.09101.09611.09715.13994.36725.2029
C52.59243.35411.51064.49623.54052.40153.43992.68355.13994.36725.20291.09101.09611.0971
O62.39611.21803.18142.40153.54054.04833.24382.55562.55343.15173.06794.38212.90544.1131
O72.39613.18141.21803.54052.40154.04832.55563.24384.38212.90544.11312.55343.15173.0679
H81.09272.17872.14252.68353.43993.24382.55561.79893.74432.73592.63994.25883.80963.6536
H91.09272.14252.17873.43992.68352.55563.24381.79894.25883.80963.65363.74432.73592.6399
H103.51462.14764.18271.09105.13992.55344.38213.74434.25881.79831.78735.72334.82655.9270
H112.78052.14993.09311.09614.36723.15172.90542.73593.80961.79831.76084.82654.44475.1555
H122.90902.14243.95021.09715.20293.06794.11312.63993.65361.78731.76085.92705.15555.7613
H133.51464.18272.14765.13991.09104.38212.55344.25883.74435.72334.82655.92701.79831.7873
H142.78053.09312.14994.36721.09612.90543.15173.80962.73594.82654.44475.15551.79831.7608
H152.90903.95022.14245.20291.09714.11313.06793.65362.63995.92705.15555.76131.78731.7608

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 116.581 C1 C2 O6 120.442
C1 C3 C5 116.581 C1 C3 O7 120.442
C2 C1 C3 108.574 C2 C1 H8 110.781
C2 C1 H9 107.947 C2 C4 H10 110.234
C2 C4 H11 110.113 C2 C4 H12 109.457
C3 C1 H8 107.947 C3 C1 H9 110.781
C3 C5 H13 110.234 C3 C5 H14 110.113
C3 C5 H15 109.457 C4 C2 O6 122.956
C5 C3 O7 122.956 H8 C1 H9 110.798
H10 C4 H11 110.626 H10 C4 H12 109.536
H11 C4 H12 106.807 H13 C5 H14 110.626
H13 C5 H15 109.536 H14 C5 H15 106.807
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.300      
2 C 0.365      
3 C 0.365      
4 C -0.530      
5 C -0.530      
6 O -0.404      
7 O -0.404      
8 H 0.175      
9 H 0.175      
10 H 0.180      
11 H 0.191      
12 H 0.172      
13 H 0.180      
14 H 0.191      
15 H 0.172      


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 1.666 1.666
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.788 -10.453 0.000
y -10.453 -46.866 0.000
z 0.000 0.000 -40.740
Traceless
 xyz
x -0.985 -10.453 0.000
y -10.453 -4.102 0.000
z 0.000 0.000 5.087
Polar
3z2-r210.174
x2-y22.078
xy-10.453
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.527 -0.133 0.000
y -0.133 10.596 0.000
z 0.000 0.000 7.863


<r2> (average value of r2) Å2
<r2> 234.361
(<r2>)1/2 15.309