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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-64.925566
Energy at 298.15K-64.933924
HF Energy-64.925566
Nuclear repulsion energy158.331242
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/CEP-121G
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 3132 3052 12.93      
2 A 3074 2995 15.92      
3 A 3045 2967 7.32      
4 A 2996 2920 0.42      
5 A 1673 1630 11.32      
6 A 1495 1457 5.26      
7 A 1492 1454 20.84      
8 A 1480 1442 16.15      
9 A 1420 1384 5.00      
10 A 1280 1247 27.11      
11 A 1154 1125 1.94      
12 A 1088 1060 0.49      
13 A 962 937 0.82      
14 A 781 761 0.00      
15 A 616 600 1.85      
16 A 470 458 7.37      
17 A 319 311 0.94      
18 A 162 158 0.00      
19 A 140 136 1.34      
20 A 52 51 10.48      
21 B 3133 3053 15.77      
22 B 3124 3045 12.06      
23 B 3073 2995 3.54      
24 B 2996 2920 8.09      
25 B 1647 1605 260.15      
26 B 1492 1454 5.04      
27 B 1488 1450 50.85      
28 B 1420 1384 88.33      
29 B 1282 1249 60.76      
30 B 1210 1179 224.89      
31 B 1066 1039 13.02      
32 B 1024 997 1.67      
33 B 916 893 17.86      
34 B 798 778 6.60      
35 B 531 517 28.00      
36 B 491 479 2.43      
37 B 401 391 2.05      
38 B 159 155 0.30      
39 B 34 33 13.20      

Unscaled Zero Point Vibrational Energy (zpe) 26557.7 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 25880.5 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/CEP-121G
ABC
0.13316 0.06248 0.04916

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.012
C2 0.000 1.259 0.109
C3 0.000 -1.259 0.109
C4 -1.357 1.799 -0.328
C5 1.357 -1.799 -0.328
O6 1.086 1.770 -0.261
O7 -1.086 -1.770 -0.261
H8 -0.900 -0.024 1.634
H9 0.900 0.024 1.634
H10 -1.224 2.573 -1.089
H11 -1.985 0.986 -0.715
H12 -1.882 2.229 0.537
H13 1.224 -2.573 -1.089
H14 1.985 -0.986 -0.715
H15 1.882 -2.229 0.537

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.54911.54912.62212.62212.43612.43611.09441.09443.54022.80982.95563.54022.80982.9556
C21.54912.51741.52463.37411.25613.23902.18652.15882.15902.16652.16054.19703.10793.9860
C31.54912.51743.37411.52463.23901.25612.15882.18654.19703.10793.98602.15902.16652.1605
C42.62211.52463.37414.50732.44363.58072.71713.47811.09281.09801.09985.13394.36785.2409
C52.62213.37411.52464.50733.58072.44363.47812.71715.13394.36785.24091.09281.09801.0998
O62.43611.25613.23902.44363.58074.15363.27962.58382.58183.20173.10784.42342.93474.1550
O72.43613.23901.25613.58072.44364.15362.58383.27964.42342.93474.15502.58183.20173.1078
H81.09442.18652.15882.71713.47813.27962.58381.80143.77642.77712.69084.29243.84293.7158
H91.09442.15882.18653.47812.71712.58383.27961.80144.29243.84293.71583.77642.77712.6908
H103.54022.15904.19701.09285.13392.58184.42343.77644.29241.79891.78785.69844.80695.9456
H112.80982.16653.10791.09804.36783.20172.93472.77713.84291.79891.76684.80694.43325.1827
H122.95562.16053.98601.09985.24093.10784.15502.69083.71581.78781.76685.94565.18275.8345
H133.54024.19702.15905.13391.09284.42342.58184.29243.77645.69844.80695.94561.79891.7878
H142.80983.10792.16654.36781.09802.93473.20173.84292.77714.80694.43325.18271.79891.7668
H152.95563.98602.16055.24091.09984.15503.10783.71582.69085.94565.18275.83451.78781.7668

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 117.090 C1 C2 O6 120.189
C1 C3 C5 117.090 C1 C3 O7 120.189
C2 C1 C3 108.687 C2 C1 H8 110.418
C2 C1 H9 108.263 C2 C4 H10 110.050
C2 C4 H11 110.335 C2 C4 H12 109.758
C3 C1 H8 108.263 C3 C1 H9 110.418
C3 C5 H13 110.050 C3 C5 H14 110.335
C3 C5 H15 109.758 C4 C2 O6 122.694
C5 C3 O7 122.694 H8 C1 H9 110.771
H10 C4 H11 110.388 H10 C4 H12 109.250
H11 C4 H12 107.004 H13 C5 H14 110.388
H13 C5 H15 109.250 H14 C5 H15 107.004
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.311      
2 C 0.133      
3 C 0.133      
4 C -0.582      
5 C -0.582      
6 O -0.144      
7 O -0.144      
8 H 0.185      
9 H 0.185      
10 H 0.189      
11 H 0.200      
12 H 0.175      
13 H 0.189      
14 H 0.200      
15 H 0.175      


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 1.657 1.657
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.087 -11.486 0.000
y -11.486 -47.449 0.000
z 0.000 0.000 -40.447
Traceless
 xyz
x -1.138 -11.486 0.000
y -11.486 -4.682 0.000
z 0.000 0.000 5.821
Polar
3z2-r211.641
x2-y22.362
xy-11.486
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.011 -0.004 0.000
y -0.004 9.950 0.000
z 0.000 0.000 7.412


<r2> (average value of r2) Å2
<r2> 192.638
(<r2>)1/2 13.879