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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: HSEh1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HSEh1PBE/3-21G*
 hartrees
Energy at 0K-343.524255
Energy at 298.15K-343.533007
HF Energy-343.524255
Nuclear repulsion energy298.069582
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 HSEh1PBE/3-21G*
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 3192 3064 5.47      
2 A 3131 3006 2.21      
3 A 3127 3002 0.01      
4 A 3066 2943 0.12      
5 A 1789 1717 11.32      
6 A 1535 1473 26.83      
7 A 1526 1465 1.39      
8 A 1503 1442 21.08      
9 A 1436 1379 7.12      
10 A 1290 1238 31.76      
11 A 1167 1121 5.62      
12 A 1127 1082 4.21      
13 A 963 924 1.02      
14 A 803 771 0.01      
15 A 649 623 1.44      
16 A 480 461 5.31      
17 A 344 330 1.16      
18 A 220 212 0.36      
19 A 159 153 0.32      
20 A 76 73 6.54      
21 B 3207 3078 1.74      
22 B 3191 3063 3.80      
23 B 3130 3005 0.30      
24 B 3065 2942 2.57      
25 B 1765 1694 188.03      
26 B 1534 1473 8.47      
27 B 1521 1460 34.17      
28 B 1437 1379 142.86      
29 B 1284 1233 72.12      
30 B 1192 1145 234.97      
31 B 1085 1041 15.44      
32 B 1048 1006 0.86      
33 B 910 873 32.15      
34 B 802 770 9.78      
35 B 550 528 22.21      
36 B 515 495 6.18      
37 B 432 415 0.82      
38 B 220 211 1.61      
39 B 61 58 12.75      

Unscaled Zero Point Vibrational Energy (zpe) 27266.6 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 26173.2 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 HSEh1PBE/3-21G*
ABC
0.13142 0.06997 0.05397

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.054
C2 0.000 1.209 0.115
C3 0.000 -1.209 0.115
C4 -1.387 1.603 -0.320
C5 1.387 -1.603 -0.320
O6 1.045 1.713 -0.295
O7 -1.045 -1.713 -0.295
H8 -0.907 -0.012 1.663
H9 0.907 0.012 1.663
H10 -1.345 2.300 -1.159
H11 -1.941 0.695 -0.592
H12 -1.916 2.073 0.520
H13 1.345 -2.300 -1.159
H14 1.941 -0.695 -0.592
H15 1.916 -2.073 0.520

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53121.53122.52662.52662.41812.41811.09181.09183.46402.63842.87323.46402.63842.8732
C21.53122.41801.50623.16591.23013.13012.17002.15662.14992.12832.14073.96822.80943.8221
C31.53122.41803.16591.50623.13011.23012.15662.17003.96822.80943.82212.14992.12832.1407
C42.52661.50623.16594.24062.43443.33422.60203.42401.09151.09781.09784.83854.05405.0135
C52.52663.16591.50624.24063.33422.43443.42402.60204.83854.05405.01351.09151.09781.0978
O62.41811.23013.13012.43443.33424.01283.25822.59732.60803.16793.09204.11622.58693.9698
O72.41813.13011.23013.33422.43444.01282.59733.25824.11622.58693.96982.60803.16793.0920
H81.09182.17002.15662.60203.42403.25822.59731.81323.67422.57962.58324.27403.69573.6772
H91.09182.15662.17003.42402.60202.59733.25821.81324.27403.69573.67723.67422.57962.5832
H103.46402.14993.96821.09154.83852.60804.11623.67424.27401.80321.78765.32974.48265.7081
H112.63842.12832.80941.09784.05403.16792.58692.57963.69571.80321.77074.48264.12314.8762
H122.87322.14073.82211.09785.01353.09203.96982.58323.67721.78761.77075.70814.87625.6461
H133.46403.96822.14994.83851.09154.11622.60804.27403.67425.32974.48265.70811.80321.7876
H142.63842.80942.12834.05401.09782.58693.16793.69572.57964.48264.12314.87621.80321.7707
H152.87323.82212.14075.01351.09783.96983.09203.67722.58325.70814.87625.64611.78761.7707

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 112.565 C1 C2 O6 121.870
C1 C3 C5 112.565 C1 C3 O7 121.870
C2 C1 C3 104.287 C2 C1 H8 110.526
C2 C1 H9 109.466 C2 C4 H10 110.694
C2 C4 H11 108.619 C2 C4 H12 109.588
C3 C1 H8 109.466 C3 C1 H9 110.526
C3 C5 H13 110.694 C3 C5 H14 108.619
C3 C5 H15 109.588 C4 C2 O6 125.360
C5 C3 O7 125.360 H8 C1 H9 112.277
H10 C4 H11 110.900 H10 C4 H12 109.468
H11 C4 H12 107.507 H13 C5 H14 110.900
H13 C5 H15 109.468 H14 C5 H15 107.507
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.613      
2 C 0.436      
3 C 0.436      
4 C -0.708      
5 C -0.708      
6 O -0.442      
7 O -0.442      
8 H 0.260      
9 H 0.260      
10 H 0.252      
11 H 0.261      
12 H 0.248      
13 H 0.252      
14 H 0.261      
15 H 0.248      


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 1.473 1.473
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.195 -8.705 0.000
y -8.705 -45.943 0.000
z 0.000 0.000 -40.309
Traceless
 xyz
x -0.069 -8.705 0.000
y -8.705 -4.191 0.000
z 0.000 0.000 4.259
Polar
3z2-r28.519
x2-y22.748
xy-8.705
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.405 -0.217 0.000
y -0.217 8.207 0.000
z 0.000 0.000 6.271


<r2> (average value of r2) Å2
<r2> 222.038
(<r2>)1/2 14.901