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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B3LYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/6-31G*
 hartrees
Energy at 0K-345.794720
Energy at 298.15K-345.803137
HF Energy-345.794720
Nuclear repulsion energy295.390674
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 B3LYP/6-31G*
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 3170 3044 8.03      
2 A 3110 2987 6.76      
3 A 3089 2967 2.99      
4 A 3050 2929 0.50      
5 A 1827 1754 19.92      
6 A 1504 1444 5.59      
7 A 1501 1441 16.20      
8 A 1489 1430 5.77      
9 A 1413 1357 5.23      
10 A 1282 1231 27.94      
11 A 1155 1109 2.09      
12 A 1088 1045 0.91      
13 A 946 909 1.33      
14 A 790 758 0.19      
15 A 627 602 1.39      
16 A 486 467 6.46      
17 A 321 308 0.78      
18 A 175 168 0.15      
19 A 145 139 0.97      
20 A 60 58 7.22      
21 B 3170 3044 9.13      
22 B 3154 3029 7.33      
23 B 3110 2987 1.08      
24 B 3050 2929 3.34      
25 B 1801 1729 296.89      
26 B 1501 1441 0.74      
27 B 1496 1437 24.91      
28 B 1413 1357 81.61      
29 B 1268 1218 96.54      
30 B 1197 1150 192.86      
31 B 1072 1029 8.61      
32 B 1011 971 0.63      
33 B 900 864 25.30      
34 B 802 770 11.05      
35 B 546 524 26.45      
36 B 498 478 0.87      
37 B 411 395 1.29      
38 B 175 168 0.45      
39 B 49 47 10.79      

Unscaled Zero Point Vibrational Energy (zpe) 26924.4 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 25855.5 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 B3LYP/6-31G*
ABC
0.13688 0.06488 0.05114

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.012
C2 0.000 1.240 0.104
C3 0.000 -1.240 0.104
C4 -1.360 1.767 -0.298
C5 1.360 -1.767 -0.298
O6 1.045 1.717 -0.294
O7 -1.045 -1.717 -0.294
H8 -0.899 -0.031 1.633
H9 0.899 0.031 1.633
H10 -1.255 2.536 -1.066
H11 -1.984 0.942 -0.663
H12 -1.870 2.189 0.577
H13 1.255 -2.536 -1.066
H14 1.984 -0.942 -0.663
H15 1.870 -2.189 0.577

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53741.53742.58622.58622.39712.39711.09311.09313.51092.76232.91173.51092.76232.9117
C21.53742.48071.51263.32471.21533.16172.18272.14702.15012.14802.14954.14823.04753.9346
C31.53742.48073.32471.51263.16171.21532.14702.18274.14823.04753.93462.15012.14802.1495
C42.58621.51263.32474.45892.40513.49812.67883.44191.09171.09681.09775.09364.31885.1813
C52.58623.32471.51264.45893.49812.40513.44192.67885.09364.31885.18131.09171.09681.0977
O62.39711.21533.16172.40513.49814.01993.24792.56462.56063.14823.07834.32812.84414.0863
O72.39713.16171.21533.49812.40514.01992.56463.24794.32812.84414.08632.56063.14823.0783
H81.09312.18272.14702.67883.44193.24792.56461.79933.74202.71972.64344.26633.79673.6659
H91.09312.14702.18273.44192.67882.56463.24791.79934.26633.79673.66593.74202.71972.6434
H103.51092.15014.14821.09175.09362.56064.32813.74204.26631.79891.78785.66014.77025.8987
H112.76232.14803.04751.09684.31883.14822.84412.71973.79671.79891.76244.77024.39275.1180
H122.91172.14953.93461.09775.18133.07834.08632.64343.66591.78781.76245.89875.11805.7579
H133.51094.14822.15015.09361.09174.32812.56064.26633.74205.66014.77025.89871.79891.7878
H142.76233.04752.14804.31881.09682.84413.14823.79672.71974.77024.39275.11801.79891.7624
H152.91173.93462.14955.18131.09774.08633.07833.66592.64345.89875.11805.75791.78781.7624

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.969 C1 C2 O6 120.656
C1 C3 C5 115.969 C1 C3 O7 120.656
C2 C1 C3 107.563 C2 C1 H8 111.018
C2 C1 H9 108.218 C2 C4 H10 110.250
C2 C4 H11 109.780 C2 C4 H12 109.843
C3 C1 H8 108.218 C3 C1 H9 111.018
C3 C5 H13 110.250 C3 C5 H14 109.780
C3 C5 H15 109.843 C4 C2 O6 123.316
C5 C3 O7 123.316 H8 C1 H9 110.769
H10 C4 H11 110.563 H10 C4 H12 109.488
H11 C4 H12 106.855 H13 C5 H14 110.563
H13 C5 H15 109.488 H14 C5 H15 106.855
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.414      
2 C 0.440      
3 C 0.440      
4 C -0.531      
5 C -0.531      
6 O -0.426      
7 O -0.426      
8 H 0.174      
9 H 0.174      
10 H 0.181      
11 H 0.194      
12 H 0.175      
13 H 0.181      
14 H 0.194      
15 H 0.175      


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 1.523 1.523
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.269 -9.031 0.000
y -9.031 -45.119 0.000
z 0.000 0.000 -39.870
Traceless
 xyz
x -0.774 -9.031 0.000
y -9.031 -3.549 0.000
z 0.000 0.000 4.323
Polar
3z2-r28.647
x2-y21.850
xy-9.031
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.026 -0.255 0.000
y -0.255 9.139 0.000
z 0.000 0.000 6.793


<r2> (average value of r2) Å2
<r2> 231.189
(<r2>)1/2 15.205