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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-343.816801
Energy at 298.15K-343.825587
HF Energy-343.816801
Nuclear repulsion energy297.823767
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 HF/6-311G**
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 3286 2985 11.67      
2 A 3236 2940 17.27      
3 A 3217 2923 5.64      
4 A 3172 2882 1.08      
5 A 2002 1819 37.90      
6 A 1603 1457 9.56      
7 A 1593 1448 17.21      
8 A 1581 1436 4.59      
9 A 1522 1383 5.17      
10 A 1379 1253 27.34      
11 A 1244 1130 1.20      
12 A 1185 1077 0.48      
13 A 1022 928 1.62      
14 A 849 771 0.08      
15 A 678 616 0.82      
16 A 529 481 12.20      
17 A 337 306 0.74      
18 A 169 154 0.30      
19 A 156 141 1.25      
20 A 51 46 9.48      
21 B 3286 2985 16.61      
22 B 3278 2978 12.70      
23 B 3236 2940 3.96      
24 B 3173 2882 8.16      
25 B 1980 1799 448.97      
26 B 1593 1448 1.28      
27 B 1583 1438 25.81      
28 B 1523 1383 76.57      
29 B 1416 1287 97.02      
30 B 1297 1178 128.05      
31 B 1156 1050 6.42      
32 B 1091 991 1.02      
33 B 985 895 8.06      
34 B 860 781 1.73      
35 B 593 538 30.68      
36 B 544 494 10.56      
37 B 434 394 2.11      
38 B 167 151 0.04      
39 B 55 50 13.49      

Unscaled Zero Point Vibrational Energy (zpe) 28529.0 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 25918.6 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 HF/6-311G**
ABC
0.14224 0.06453 0.05128

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.987
C2 0.000 1.239 0.093
C3 0.000 -1.239 0.093
C4 -1.347 1.804 -0.279
C5 1.347 -1.804 -0.279
O6 1.022 1.698 -0.297
O7 -1.022 -1.698 -0.297
H8 -0.889 -0.034 1.604
H9 0.889 0.034 1.604
H10 -1.228 2.582 -1.020
H11 -1.989 1.014 -0.656
H12 -1.822 2.213 0.609
H13 1.228 -2.582 -1.020
H14 1.989 -1.014 -0.656
H15 1.822 -2.213 0.609

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52801.52802.58292.58292.36162.36161.08241.08243.49362.77192.89113.49362.77192.8911
C21.52802.47791.50733.34811.18663.13382.16652.12762.13342.13702.12914.16513.09683.9369
C31.52802.47793.34811.50733.13381.18662.12762.16654.16513.09683.93692.13342.13702.1291
C42.58291.50733.34814.50212.37183.51622.67093.41741.08111.08521.08705.13964.38245.1924
C52.58293.34811.50734.50213.51622.37183.41742.67095.13964.38245.19241.08111.08521.0870
O62.36161.18663.13382.37183.51623.96333.20412.53032.52393.10853.02904.34522.90054.0929
O72.36163.13381.18663.51622.37183.96332.53033.20414.34522.90054.09292.52393.10853.0290
H81.08242.16652.12762.67093.41743.20412.53031.77873.72092.72342.62854.22643.78803.6174
H91.08242.12762.16653.41742.67092.53033.20411.77874.22643.78803.61743.72092.72342.6285
H103.49362.13344.16511.08115.13962.52394.34523.72094.22641.78071.77235.71894.83855.9116
H112.77192.13703.09681.08524.38243.10852.90052.72343.78801.78071.75114.83854.46425.1506
H122.89112.12913.93691.08705.19243.02904.09292.62853.61741.77231.75115.91165.15065.7324
H133.49364.16512.13345.13961.08114.34522.52394.22643.72095.71894.83855.91161.78071.7723
H142.77193.09682.13704.38241.08522.90053.10853.78802.72344.83854.46425.15061.78071.7511
H152.89113.93692.12915.19241.08704.09293.02903.61742.62855.91165.15065.73241.77231.7511

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 116.633 C1 C2 O6 120.392
C1 C3 C5 116.633 C1 C3 O7 120.392
C2 C1 C3 108.351 C2 C1 H8 111.035
C2 C1 H9 107.959 C2 C4 H10 109.925
C2 C4 H11 109.970 C2 C4 H12 109.236
C3 C1 H8 107.959 C3 C1 H9 111.035
C3 C5 H13 109.925 C3 C5 H14 109.970
C3 C5 H15 109.236 C4 C2 O6 122.957
C5 C3 O7 122.957 H8 C1 H9 110.496
H10 C4 H11 110.572 H10 C4 H12 109.653
H11 C4 H12 107.439 H13 C5 H14 110.572
H13 C5 H15 109.653 H14 C5 H15 107.439
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.283      
2 C 0.284      
3 C 0.284      
4 C -0.257      
5 C -0.257      
6 O -0.396      
7 O -0.396      
8 H 0.138      
9 H 0.138      
10 H 0.128      
11 H 0.131      
12 H 0.114      
13 H 0.128      
14 H 0.131      
15 H 0.114      


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 1.805 1.805
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.575 -10.011 0.000
y -10.011 -46.235 0.000
z 0.000 0.000 -40.319
Traceless
 xyz
x -1.298 -10.011 0.000
y -10.011 -3.788 0.000
z 0.000 0.000 5.086
Polar
3z2-r210.171
x2-y21.660
xy-10.011
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.824 -0.151 0.000
y -0.151 8.454 0.000
z 0.000 0.000 6.868


<r2> (average value of r2) Å2
<r2> 230.821
(<r2>)1/2 15.193