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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: PBEPBE/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 PBEPBE/6-311G**
 hartrees
Energy at 0K-345.471062
Energy at 298.15K-345.479353
HF Energy-345.471062
Nuclear repulsion energy295.285513
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 PBEPBE/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 3091 3063 7.91      
2 A 3032 3004 4.66      
3 A 3009 2981 2.45      
4 A 2968 2941 0.13      
5 A 1750 1734 19.81      
6 A 1424 1411 4.16      
7 A 1419 1406 21.35      
8 A 1406 1393 10.18      
9 A 1328 1316 7.30      
10 A 1228 1217 23.47      
11 A 1099 1089 1.72      
12 A 1033 1024 0.60      
13 A 902 894 1.56      
14 A 766 759 0.32      
15 A 604 599 2.39      
16 A 474 470 4.22      
17 A 314 312 0.84      
18 A 173 171 0.19      
19 A 138 137 0.70      
20 A 69 69 6.74      
21 B 3091 3063 8.03      
22 B 3081 3053 5.91      
23 B 3031 3004 0.17      
24 B 2968 2941 3.53      
25 B 1720 1705 320.66      
26 B 1418 1406 1.26      
27 B 1415 1402 28.21      
28 B 1326 1314 111.06      
29 B 1185 1174 116.19      
30 B 1141 1131 206.16      
31 B 1018 1009 14.18      
32 B 956 947 1.80      
33 B 855 848 37.17      
34 B 782 775 18.24      
35 B 531 526 26.74      
36 B 484 480 0.73      
37 B 401 397 1.12      
38 B 173 172 0.70      
39 B 42 42 9.37      

Unscaled Zero Point Vibrational Energy (zpe) 25922.8 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 25686.9 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 PBEPBE/6-311G**
ABC
0.13579 0.06538 0.05140

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.020
C2 0.000 1.237 0.104
C3 0.000 -1.237 0.104
C4 -1.365 1.748 -0.297
C5 1.365 -1.748 -0.297
O6 1.045 1.717 -0.300
O7 -1.045 -1.717 -0.300
H8 -0.907 -0.034 1.639
H9 0.907 0.034 1.639
H10 -1.271 2.511 -1.080
H11 -1.990 0.908 -0.640
H12 -1.873 2.180 0.581
H13 1.271 -2.511 -1.080
H14 1.990 -0.908 -0.640
H15 1.873 -2.180 0.581

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53921.53922.57952.57952.40492.40491.09851.09853.51092.74592.90763.51092.74592.9076
C21.53922.47441.51163.30721.21933.15962.18962.15092.15362.15012.15064.13073.01903.9263
C31.53922.47443.30721.51163.15961.21932.15092.18964.13073.01903.92632.15362.15012.1506
C42.57951.51163.30724.43612.41053.48002.67133.44211.09671.10261.10295.06944.29275.1663
C52.57953.30721.51164.43613.48002.41053.44212.67135.06944.29275.16631.09671.10261.1029
O62.40491.21933.15962.41053.48004.02033.26162.57172.56953.15983.08364.30472.80994.0806
O72.40493.15961.21933.48002.41054.02032.57173.26164.30472.80994.08062.56953.15983.0836
H81.09852.18962.15092.67133.44213.26162.57171.81443.74182.69382.63754.27413.78813.6677
H91.09852.15092.18963.44212.67132.57173.26161.81444.27413.78813.66773.74182.69382.6375
H103.51092.15364.13071.09675.06942.56954.30473.74184.27411.81121.79765.62784.74445.8863
H112.74592.15013.01901.10264.29273.15982.80992.69383.78811.81121.76824.74444.37445.0941
H122.90762.15063.92631.10295.16633.08364.08062.63753.66771.79761.76825.88635.09415.7487
H133.51094.13072.15365.06941.09674.30472.56954.27413.74185.62784.74445.88631.81121.7976
H142.74593.01902.15014.29271.10262.80993.15983.78812.69384.74444.37445.09411.81121.7682
H152.90763.92632.15065.16631.10294.08063.08363.66772.63755.88635.09415.74871.79761.7682

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.448 C1 C2 O6 120.901
C1 C3 C5 115.448 C1 C3 O7 120.901
C2 C1 C3 106.986 C2 C1 H8 111.120
C2 C1 H9 108.095 C2 C4 H10 110.301
C2 C4 H11 109.672 C2 C4 H12 109.697
C3 C1 H8 108.095 C3 C1 H9 111.120
C3 C5 H13 110.301 C3 C5 H14 109.672
C3 C5 H15 109.697 C4 C2 O6 123.581
C5 C3 O7 123.581 H8 C1 H9 111.353
H10 C4 H11 110.886 H10 C4 H12 109.622
H11 C4 H12 106.589 H13 C5 H14 110.886
H13 C5 H15 109.622 H14 C5 H15 106.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.329      
2 C 0.162      
3 C 0.162      
4 C -0.339      
5 C -0.339      
6 O -0.258      
7 O -0.258      
8 H 0.155      
9 H 0.155      
10 H 0.146      
11 H 0.153      
12 H 0.145      
13 H 0.146      
14 H 0.153      
15 H 0.145      


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 1.488 1.488
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.673 -8.771 0.000
y -8.771 -45.652 0.000
z 0.000 0.000 -40.593
Traceless
 xyz
x -0.550 -8.771 0.000
y -8.771 -3.519 0.000
z 0.000 0.000 4.069
Polar
3z2-r28.137
x2-y21.979
xy-8.771
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.140 -0.664 0.000
y -0.664 10.722 0.000
z 0.000 0.000 7.676


<r2> (average value of r2) Å2
<r2> 230.753
(<r2>)1/2 15.191