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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-343.761949
Energy at 298.15K-343.770626
HF Energy-343.761949
Nuclear repulsion energy296.945466
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 B3PW91/3-21G
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 3177 3054 6.28      
2 A 3119 2998 3.27      
3 A 3115 2994 0.00      
4 A 3055 2936 0.14      
5 A 1771 1702 10.70      
6 A 1531 1472 25.04      
7 A 1523 1464 1.76      
8 A 1500 1442 20.13      
9 A 1431 1375 6.05      
10 A 1282 1232 31.03      
11 A 1161 1116 6.50      
12 A 1120 1076 4.02      
13 A 954 917 1.37      
14 A 793 762 0.01      
15 A 642 617 1.56      
16 A 476 458 4.95      
17 A 340 327 1.12      
18 A 212 204 0.35      
19 A 154 148 0.37      
20 A 74 71 6.53      
21 B 3193 3069 2.32      
22 B 3176 3053 4.66      
23 B 3118 2997 0.13      
24 B 3054 2936 2.63      
25 B 1746 1678 185.58      
26 B 1531 1471 9.05      
27 B 1518 1459 33.33      
28 B 1431 1376 134.44      
29 B 1280 1230 65.56      
30 B 1181 1135 239.93      
31 B 1078 1036 19.31      
32 B 1043 1002 1.33      
33 B 899 864 39.72      
34 B 791 760 11.07      
35 B 547 525 22.87      
36 B 512 492 5.43      
37 B 427 411 0.80      
38 B 212 203 1.66      
39 B 50 49 12.01      

Unscaled Zero Point Vibrational Energy (zpe) 27107.0 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 26055.3 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 B3PW91/3-21G
ABC
0.13136 0.06890 0.05323

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.048
C2 0.000 1.218 0.112
C3 0.000 -1.218 0.112
C4 -1.390 1.621 -0.319
C5 1.390 -1.621 -0.319
O6 1.046 1.728 -0.292
O7 -1.046 -1.728 -0.292
H8 -0.906 -0.012 1.658
H9 0.906 0.012 1.658
H10 -1.346 2.325 -1.153
H11 -1.950 0.719 -0.597
H12 -1.915 2.089 0.525
H13 1.346 -2.325 -1.153
H14 1.950 -0.719 -0.597
H15 1.915 -2.089 0.525

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53581.53582.53572.53572.42442.42441.09231.09233.47292.65102.88173.47292.65102.8817
C21.53582.43521.51063.19011.23223.15222.17332.15942.15362.13442.14433.99492.83833.8432
C31.53582.43523.19011.51063.15221.23222.15942.17333.99492.83833.84322.15362.13442.1443
C42.53571.51063.19014.27142.43893.36732.60943.43071.09221.09791.09854.87364.08805.0401
C52.53573.19011.51064.27143.36732.43893.43072.60944.87364.08805.04011.09221.09791.0985
O62.42441.23223.15222.43893.36734.04063.26242.60112.61123.17653.09314.15432.62673.9993
O72.42443.15221.23223.36732.43894.04062.60113.26244.15432.62673.99932.61123.17653.0931
H81.09232.17332.15942.60943.43073.26242.60111.81283.68172.59032.59124.28023.70743.6817
H91.09232.15942.17333.43072.60942.60113.26241.81284.28023.70743.68173.68172.59032.5912
H103.47292.15363.99491.09224.87362.61124.15433.68174.28021.80351.78805.37234.52055.7384
H112.65102.13442.83831.09794.08803.17652.62672.59033.70741.80351.77174.52054.15694.9075
H122.88172.14433.84321.09855.04013.09313.99932.59123.68171.78801.77175.73844.90755.6677
H133.47293.99492.15364.87361.09224.15432.61124.28023.68175.37234.52055.73841.80351.7880
H142.65102.83832.13444.08801.09792.62673.17653.70742.59034.52054.15694.90751.80351.7717
H152.88173.84322.14435.04011.09853.99933.09313.68172.59125.73844.90755.66771.78801.7717

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 112.682 C1 C2 O6 121.911
C1 C3 C5 112.682 C1 C3 O7 121.911
C2 C1 C3 104.893 C2 C1 H8 110.433
C2 C1 H9 109.337 C2 C4 H10 110.641
C2 C4 H11 108.794 C2 C4 H12 109.529
C3 C1 H8 109.337 C3 C1 H9 110.433
C3 C5 H13 110.641 C3 C5 H14 108.794
C3 C5 H15 109.529 C4 C2 O6 125.243
C5 C3 O7 125.243 H8 C1 H9 112.162
H10 C4 H11 110.874 H10 C4 H12 109.407
H11 C4 H12 107.532 H13 C5 H14 110.874
H13 C5 H15 109.407 H14 C5 H15 107.532
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.605      
2 C 0.432      
3 C 0.432      
4 C -0.701      
5 C -0.701      
6 O -0.439      
7 O -0.439      
8 H 0.257      
9 H 0.257      
10 H 0.249      
11 H 0.259      
12 H 0.246      
13 H 0.249      
14 H 0.259      
15 H 0.246      


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 1.447 1.447
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.082 -8.760 0.000
y -8.760 -45.907 0.000
z 0.000 0.000 -40.217
Traceless
 xyz
x -0.020 -8.760 0.000
y -8.760 -4.258 0.000
z 0.000 0.000 4.278
Polar
3z2-r28.555
x2-y22.825
xy-8.760
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.456 -0.222 0.000
y -0.222 8.361 0.000
z 0.000 0.000 6.295


<r2> (average value of r2) Å2
<r2> 224.254
(<r2>)1/2 14.975