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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-345.459839
Energy at 298.15K-345.468130
HF Energy-345.459839
Nuclear repulsion energy295.098270
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 3090 3058 10.20      
2 A 3031 2999 6.74      
3 A 3010 2978 3.48      
4 A 2970 2939 0.15      
5 A 1753 1735 19.61      
6 A 1441 1426 1.77      
7 A 1435 1420 24.60      
8 A 1421 1407 10.70      
9 A 1344 1330 7.59      
10 A 1238 1225 23.30      
11 A 1111 1099 2.28      
12 A 1041 1030 0.69      
13 A 908 899 1.54      
14 A 769 761 0.30      
15 A 606 600 2.44      
16 A 474 469 4.17      
17 A 314 311 0.80      
18 A 172 171 0.18      
19 A 139 137 0.74      
20 A 69 68 6.70      
21 B 3090 3058 10.95      
22 B 3080 3048 8.13      
23 B 3031 2999 0.65      
24 B 2969 2939 4.85      
25 B 1723 1705 319.21      
26 B 1435 1420 0.97      
27 B 1434 1419 33.69      
28 B 1343 1329 110.40      
29 B 1197 1184 112.94      
30 B 1147 1135 210.87      
31 B 1025 1014 15.30      
32 B 965 955 1.82      
33 B 860 851 38.04      
34 B 784 776 18.45      
35 B 532 526 26.35      
36 B 485 480 0.74      
37 B 401 397 1.04      
38 B 173 171 0.69      
39 B 45 45 9.20      

Unscaled Zero Point Vibrational Energy (zpe) 26024.8 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 25754.2 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 PBEPBE/6-311G*
ABC
0.13585 0.06518 0.05125

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 1.016
C2 0.000 1.239 0.103
C3 0.000 -1.239 0.103
C4 -1.366 1.751 -0.295
C5 1.366 -1.751 -0.295
O6 1.045 1.721 -0.300
O7 -1.045 -1.721 -0.300
H8 -0.905 -0.033 1.639
H9 0.905 0.033 1.639
H10 -1.276 2.513 -1.079
H11 -1.997 0.915 -0.638
H12 -1.874 2.187 0.582
H13 1.276 -2.513 -1.079
H14 1.997 -0.915 -0.638
H15 1.874 -2.187 0.582

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53941.53942.57892.57892.40552.40551.09901.09903.51202.74982.91283.51202.74982.9128
C21.53942.47851.51183.31141.21903.16482.19042.15222.15602.15472.15414.13603.02923.9344
C31.53942.47853.31141.51183.16481.21902.15222.19044.13603.02923.93442.15602.15472.1541
C42.57891.51183.31144.44132.41063.48662.67163.44191.09701.10271.10315.07714.30475.1743
C52.57893.31141.51184.44133.48662.41063.44192.67165.07714.30475.17431.09701.10271.1031
O62.40551.21903.16482.41063.48664.02623.26192.57452.57303.16483.08494.31122.82244.0908
O72.40553.16481.21903.48662.41064.02622.57453.26194.31122.82244.09082.57303.16483.0849
H81.09902.19042.15222.67163.44193.26192.57451.81113.74302.69752.64344.27703.79253.6715
H91.09902.15222.19043.44192.67162.57453.26191.81114.27703.79253.67153.74302.69752.6434
H103.51202.15604.13601.09705.07712.57304.31123.74304.27701.80821.79485.63734.75995.8968
H112.74982.15473.02921.10274.30473.16482.82242.69753.79251.80821.76664.75994.39295.1082
H122.91282.15413.93441.10315.17433.08494.09082.64343.67151.79481.76665.89685.10825.7604
H133.51204.13602.15605.07711.09704.31122.57304.27703.74305.63734.75995.89681.80821.7948
H142.74983.02922.15474.30471.10272.82243.16483.79252.69754.75994.39295.10821.80821.7666
H152.91283.93442.15415.17431.10314.09083.08493.67152.64345.89685.10825.76041.79481.7666

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.387 C1 C2 O6 120.952
C1 C3 C5 115.387 C1 C3 O7 120.952
C2 C1 C3 107.222 C2 C1 H8 111.140
C2 C1 H9 108.160 C2 C4 H10 110.461
C2 C4 H11 110.016 C2 C4 H12 109.946
C3 C1 H8 108.160 C3 C1 H9 111.140
C3 C5 H13 110.461 C3 C5 H14 110.016
C3 C5 H15 109.946 C4 C2 O6 123.595
C5 C3 O7 123.595 H8 C1 H9 110.971
H10 C4 H11 110.581 H10 C4 H12 109.329
H11 C4 H12 106.426 H13 C5 H14 110.581
H13 C5 H15 109.329 H14 C5 H15 106.426
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 -0.595      
2 C 0.286      
3 C 0.286      
4 C -0.714      
5 C -0.714      
6 O -0.259      
7 O -0.259      
8 H 0.247      
9 H 0.247      
10 H 0.243      
11 H 0.252      
12 H 0.241      
13 H 0.243      
14 H 0.252      
15 H 0.241      


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 1.499 1.499
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.767 -8.713 0.000
y -8.713 -45.763 0.000
z 0.000 0.000 -40.639
Traceless
 xyz
x -0.565 -8.713 0.000
y -8.713 -3.560 0.000
z 0.000 0.000 4.126
Polar
3z2-r28.251
x2-y21.997
xy-8.713
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.044 -0.633 0.000
y -0.633 10.641 0.000
z 0.000 0.000 7.573


<r2> (average value of r2) Å2
<r2> 231.318
(<r2>)1/2 15.209