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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G**
 hartrees
Energy at 0K-345.397466
Energy at 298.15K-345.405949
HF Energy-345.397466
Nuclear repulsion energy297.037554
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 PBE1PBE/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 3203 3053 5.61      
2 A 3145 2998 3.49      
3 A 3114 2968 1.66      
4 A 3074 2929 0.31      
5 A 1864 1777 20.57      
6 A 1499 1429 9.27      
7 A 1496 1426 17.69      
8 A 1482 1413 8.57      
9 A 1412 1346 8.85      
10 A 1293 1233 26.63      
11 A 1157 1103 1.70      
12 A 1088 1037 1.11      
13 A 953 909 0.48      
14 A 806 768 0.15      
15 A 630 601 1.50      
16 A 491 468 6.41      
17 A 322 307 0.85      
18 A 176 168 0.20      
19 A 144 137 0.87      
20 A 62 59 7.38      
21 B 3203 3053 5.63      
22 B 3187 3037 4.58      
23 B 3145 2997 0.34      
24 B 3073 2929 1.98      
25 B 1837 1751 313.48      
26 B 1496 1425 1.26      
27 B 1491 1421 26.22      
28 B 1411 1345 112.50      
29 B 1269 1210 159.31      
30 B 1209 1153 137.55      
31 B 1072 1022 4.67      
32 B 1006 959 0.69      
33 B 910 867 15.81      
34 B 825 786 8.28      
35 B 549 523 26.85      
36 B 502 478 0.93      
37 B 411 392 1.38      
38 B 176 168 0.59      
39 B 51 49 11.15      

Unscaled Zero Point Vibrational Energy (zpe) 27117.6 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 25845.7 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 PBE1PBE/6-31G**
ABC
0.13736 0.06617 0.05203

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.015
C2 0.000 1.228 0.105
C3 0.000 -1.228 0.105
C4 -1.355 1.739 -0.303
C5 1.355 -1.739 -0.303
O6 1.041 1.706 -0.290
O7 -1.041 -1.706 -0.290
H8 -0.900 -0.031 1.634
H9 0.900 0.031 1.634
H10 -1.255 2.501 -1.078
H11 -1.973 0.905 -0.658
H12 -1.868 2.166 0.567
H13 1.255 -2.501 -1.078
H14 1.973 -0.905 -0.658
H15 1.868 -2.166 0.567

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52831.52832.56832.56832.38662.38661.09311.09313.49402.74012.89533.49402.74012.8953
C21.52832.45661.50453.28751.21153.13822.17582.14012.14342.13962.14114.10883.00433.9022
C31.52832.45663.28751.50453.13821.21152.14012.17584.10883.00433.90222.14342.13962.1411
C42.56831.50453.28754.40922.39623.45912.66313.42831.09131.09661.09705.03904.26525.1379
C52.56833.28751.50454.40923.45912.39623.42832.66315.03904.26525.13791.09131.09661.0970
O62.38661.21153.13822.39623.45913.99653.23852.55452.55433.13963.06784.28522.79664.0513
O72.38663.13821.21153.45912.39623.99652.55453.23854.28522.79664.05132.55433.13963.0678
H81.09312.17582.14012.66313.42833.23852.55451.80163.72712.69812.62754.25413.77753.6551
H91.09312.14012.17583.42832.66312.55453.23851.80164.25413.77753.65513.72712.69812.6275
H103.49402.14344.10881.09135.03902.55434.28523.72714.25411.79931.78745.59664.71155.8520
H112.74012.13963.00431.09664.26523.13962.79662.69813.77751.79931.76144.71154.34095.0684
H122.89532.14113.90221.09705.13793.06784.05132.62753.65511.78741.76145.85205.06845.7212
H133.49404.10882.14345.03901.09134.28522.55434.25413.72715.59664.71155.85201.79931.7874
H142.74013.00432.13964.26521.09662.79663.13963.77752.69814.71154.34095.06841.79931.7614
H152.89533.90222.14115.13791.09704.05133.06783.65512.62755.85205.06845.72121.78741.7614

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.734 C1 C2 O6 120.726
C1 C3 C5 115.734 C1 C3 O7 120.726
C2 C1 C3 106.963 C2 C1 H8 111.111
C2 C1 H9 108.304 C2 C4 H10 110.310
C2 C4 H11 109.692 C2 C4 H12 109.783
C3 C1 H8 108.304 C3 C1 H9 111.111
C3 C5 H13 110.310 C3 C5 H14 109.692
C3 C5 H15 109.783 C4 C2 O6 123.474
C5 C3 O7 123.474 H8 C1 H9 110.986
H10 C4 H11 110.642 H10 C4 H12 109.526
H11 C4 H12 106.823 H13 C5 H14 110.642
H13 C5 H15 109.526 H14 C5 H15 106.823
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.496      
2 C 0.442      
3 C 0.442      
4 C -0.614      
5 C -0.614      
6 O -0.425      
7 O -0.425      
8 H 0.209      
9 H 0.209      
10 H 0.211      
11 H 0.222      
12 H 0.203      
13 H 0.211      
14 H 0.222      
15 H 0.203      


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 1.534 1.534
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.969 -9.051 0.000
y -9.051 -45.016 0.000
z 0.000 0.000 -39.690
Traceless
 xyz
x -0.616 -9.051 0.000
y -9.051 -3.687 0.000
z 0.000 0.000 4.303
Polar
3z2-r28.605
x2-y22.048
xy-9.051
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.978 -0.222 0.000
y -0.222 8.999 0.000
z 0.000 0.000 6.773


<r2> (average value of r2) Å2
<r2> 227.899
(<r2>)1/2 15.096