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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-345.211522
Energy at 298.15K-345.219999
HF Energy-344.968981
Nuclear repulsion energy293.387930
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
(Å4/u)
Dep P Dep U
1 A 3191 3191 7.75      
2 A 3135 3135 6.58      
3 A 3102 3102 3.01      
4 A 3065 3065 0.30      
5 A 1695 1695 8.21      
6 A 1536 1536 10.10      
7 A 1535 1535 15.05      
8 A 1521 1521 14.10      
9 A 1457 1457 4.49      
10 A 1309 1309 30.23      
11 A 1180 1180 1.93      
12 A 1119 1119 1.07      
13 A 988 988 0.96      
14 A 800 800 0.05      
15 A 635 635 1.43      
16 A 484 484 7.08      
17 A 331 331 0.84      
18 A 172 172 0.09      
19 A 147 147 1.17      
20 A 56 56 8.93      
21 B 3191 3191 8.30      
22 B 3173 3173 5.89      
23 B 3134 3134 1.43      
24 B 3064 3064 3.55      
25 B 1672 1672 171.87      
26 B 1535 1535 2.60      
27 B 1529 1529 43.63      
28 B 1458 1458 81.68      
29 B 1309 1309 50.30      
30 B 1237 1237 224.37      
31 B 1089 1089 13.43      
32 B 1053 1053 0.95      
33 B 931 931 17.08      
34 B 815 815 7.25      
35 B 544 544 26.86      
36 B 503 503 1.66      
37 B 417 417 1.20      
38 B 170 170 0.58      
39 B 34 34 12.38      

Unscaled Zero Point Vibrational Energy (zpe) 27159.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 27159.1 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
0.13446 0.06430 0.05044

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 1.010
C2 0.000 1.244 0.111
C3 0.000 -1.244 0.111
C4 -1.351 1.763 -0.318
C5 1.351 -1.763 -0.318
O6 1.077 1.747 -0.272
O7 -1.077 -1.747 -0.272
H8 -0.897 -0.022 1.633
H9 0.897 0.022 1.633
H10 -1.229 2.527 -1.087
H11 -1.967 0.939 -0.695
H12 -1.877 2.195 0.542
H13 1.229 -2.527 -1.087
H14 1.967 -0.939 -0.695
H15 1.877 -2.195 0.542

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53421.53422.58782.58782.42002.42001.09281.09283.50662.76682.92633.50662.76682.9263
C21.53422.48741.50963.32431.24913.20212.17292.14792.14392.14742.14844.14373.04653.9417
C31.53422.48743.32431.50963.20211.24912.14792.17294.14373.04653.94172.14392.14742.1484
C42.58781.50963.32434.44232.42793.52182.68293.44861.09101.09611.09705.06554.29515.1799
C52.58783.32431.50964.44233.52182.42793.44862.68295.06554.29515.17991.09101.09611.0970
O62.42001.24913.20212.42793.52184.10513.26442.57682.56733.17723.09674.35462.86124.1049
O72.42003.20211.24913.52182.42794.10512.57683.26444.35462.86124.10492.56733.17723.0967
H81.09282.17292.14792.68293.44863.26442.57681.79543.74262.73592.65834.26633.80313.6899
H91.09282.14792.17293.44862.68292.57683.26441.79544.26633.80313.68993.74262.73592.6583
H103.50662.14394.14371.09105.06552.56734.35463.74264.26631.79481.78425.62134.73115.8832
H112.76682.14743.04651.09614.29513.17722.86122.73593.80311.79481.76564.73114.35845.1117
H122.92632.14843.94171.09705.17993.09674.10492.65833.68991.78421.76565.88325.11175.7774
H133.50664.14372.14395.06551.09104.35462.56734.26633.74265.62134.73115.88321.79481.7842
H142.76683.04652.14744.29511.09612.86123.17723.80312.73594.73114.35845.11171.79481.7656
H152.92633.94172.14845.17991.09704.10493.09673.68992.65835.88325.11175.77741.78421.7656

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 116.462 C1 C2 O6 120.451
C1 C3 C5 116.462 C1 C3 O7 120.451
C2 C1 C3 108.325 C2 C1 H8 110.486
C2 C1 H9 108.528 C2 C4 H10 110.014
C2 C4 H11 109.983 C2 C4 H12 110.010
C3 C1 H8 108.528 C3 C1 H9 110.486
C3 C5 H13 110.014 C3 C5 H14 109.983
C3 C5 H15 110.010 C4 C2 O6 123.027
C5 C3 O7 123.027 H8 C1 H9 110.465
H10 C4 H11 110.294 H10 C4 H12 109.265
H11 C4 H12 107.230 H13 C5 H14 110.294
H13 C5 H15 109.265 H14 C5 H15 107.230
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 -0.392      
2 C 0.367      
3 C 0.367      
4 C -0.485      
5 C -0.485      
6 O -0.407      
7 O -0.407      
8 H 0.180      
9 H 0.180      
10 H 0.179      
11 H 0.190      
12 H 0.172      
13 H 0.179      
14 H 0.190      
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 1.578 1.578
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.831 -10.329 0.000
y -10.329 -46.861 0.000
z 0.000 0.000 -40.581
Traceless
 xyz
x -1.110 -10.329 0.000
y -10.329 -4.155 0.000
z 0.000 0.000 5.265
Polar
3z2-r210.530
x2-y22.030
xy-10.329
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.005 0.100 0.000
y 0.100 8.675 0.000
z 0.000 0.000 6.529


<r2> (average value of r2) Å2
<r2> 234.224
(<r2>)1/2 15.304