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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-345.289845
Energy at 298.15K-345.298369
HF Energy-345.289845
Nuclear repulsion energy295.439255
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 3208 3066 5.56      
2 A 3145 3006 3.35      
3 A 3115 2978 1.44      
4 A 3068 2933 0.36      
5 A 1770 1692 12.84      
6 A 1517 1450 15.36      
7 A 1514 1447 17.96      
8 A 1500 1434 16.76      
9 A 1441 1377 6.47      
10 A 1316 1258 31.57      
11 A 1177 1125 1.93      
12 A 1112 1063 2.09      
13 A 988 944 0.14      
14 A 814 779 0.01      
15 A 643 614 1.65      
16 A 491 469 6.71      
17 A 333 318 1.02      
18 A 175 167 0.22      
19 A 147 140 1.13      
20 A 59 56 9.44      
21 B 3208 3066 5.64      
22 B 3193 3052 3.72      
23 B 3144 3006 0.28      
24 B 3068 2932 1.67      
25 B 1745 1668 249.85      
26 B 1514 1448 4.33      
27 B 1508 1442 36.39      
28 B 1441 1377 117.33      
29 B 1298 1241 84.75      
30 B 1243 1189 239.86      
31 B 1088 1040 8.90      
32 B 1039 993 0.83      
33 B 936 895 13.05      
34 B 838 801 6.75      
35 B 549 525 28.17      
36 B 511 489 1.55      
37 B 418 400 1.56      
38 B 173 166 0.90      
39 B 36 34 12.88      

Unscaled Zero Point Vibrational Energy (zpe) 27239.6 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 26038.3 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
0.13602 0.06546 0.05130

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 1.005
C2 0.000 1.234 0.109
C3 0.000 -1.234 0.109
C4 -1.345 1.742 -0.315
C5 1.345 -1.742 -0.315
O6 1.065 1.734 -0.272
O7 -1.065 -1.734 -0.272
H8 -0.898 -0.022 1.627
H9 0.898 0.022 1.627
H10 -1.236 2.504 -1.088
H11 -1.960 0.912 -0.684
H12 -1.873 2.173 0.545
H13 1.236 -2.504 -1.088
H14 1.960 -0.912 -0.684
H15 1.873 -2.173 0.545

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52541.52542.56662.56662.40292.40291.09271.09273.49012.74342.90513.49012.74342.9051
C21.52542.46851.49883.29341.23703.17642.16562.14032.13842.13852.13954.11553.01263.9119
C31.52542.46853.29341.49883.17641.23702.14032.16564.11553.01263.91192.13842.13852.1395
C42.56661.49883.29344.40142.41083.48712.66163.42971.09071.09671.09725.02884.25445.1397
C52.56663.29341.49884.40143.48712.41083.42972.66165.02884.25445.13971.09071.09671.0972
O62.40291.23703.17642.41083.48714.06993.24772.56242.56033.16173.08124.31922.82294.0717
O72.40293.17641.23703.48712.41084.06992.56243.24774.31922.82294.07172.56033.16173.0812
H81.09272.16562.14032.66163.42973.24772.56241.79733.72382.70932.63394.25293.78183.6708
H91.09272.14032.16563.42972.66162.56243.24771.79734.25293.78183.67083.72382.70932.6339
H103.49012.13844.11551.09075.02882.56034.31923.72384.25291.79521.78335.58574.69555.8484
H112.74342.13853.01261.09674.25443.16172.82292.70933.78181.79521.76254.69554.32325.0708
H122.90512.13953.91191.09725.13973.08124.07172.63393.67081.78331.76255.84845.07085.7366
H133.49014.11552.13845.02881.09074.31922.56034.25293.72385.58574.69555.84841.79521.7833
H142.74343.01262.13854.25441.09672.82293.16173.78182.70934.69554.32325.07081.79521.7625
H152.90513.91192.13955.13971.09724.07173.08123.67082.63395.84845.07085.73661.78331.7625

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 116.132 C1 C2 O6 120.525
C1 C3 C5 116.132 C1 C3 O7 120.525
C2 C1 C3 108.019 C2 C1 H8 110.529
C2 C1 H9 108.541 C2 C4 H10 110.344
C2 C4 H11 109.993 C2 C4 H12 110.040
C3 C1 H8 108.541 C3 C1 H9 110.529
C3 C5 H13 110.344 C3 C5 H14 109.993
C3 C5 H15 110.040 C4 C2 O6 123.282
C5 C3 O7 123.282 H8 C1 H9 110.650
H10 C4 H11 110.307 H10 C4 H12 109.189
H11 C4 H12 106.903 H13 C5 H14 110.307
H13 C5 H15 109.189 H14 C5 H15 106.903
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 -0.456      
2 C 0.363      
3 C 0.363      
4 C -0.565      
5 C -0.565      
6 O -0.412      
7 O -0.412      
8 H 0.212      
9 H 0.212      
10 H 0.209      
11 H 0.220      
12 H 0.201      
13 H 0.209      
14 H 0.220      
15 H 0.201      


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 1.621 1.621
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.949 -10.589 0.000
y -10.589 -46.302 0.000
z 0.000 0.000 -39.982
Traceless
 xyz
x -0.807 -10.589 0.000
y -10.589 -4.337 0.000
z 0.000 0.000 5.143
Polar
3z2-r210.287
x2-y22.353
xy-10.589
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.019 0.040 0.000
y 0.040 8.794 0.000
z 0.000 0.000 6.526


<r2> (average value of r2) Å2
<r2> 230.559
(<r2>)1/2 15.184