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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B3LYP/CEP-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/CEP-31G
 hartrees
Energy at 0K-64.910733
Energy at 298.15K-64.919048
HF Energy-64.910733
Nuclear repulsion energy157.850454
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/CEP-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 3172 3071 18.04      
2 A 3118 3020 24.93      
3 A 3087 2990 10.35      
4 A 3042 2946 0.48      
5 A 1678 1625 10.02      
6 A 1489 1442 8.44      
7 A 1485 1438 26.94      
8 A 1472 1425 14.36      
9 A 1417 1372 4.29      
10 A 1284 1243 31.22      
11 A 1151 1115 2.48      
12 A 1085 1050 1.49      
13 A 961 931 0.21      
14 A 784 760 0.03      
15 A 615 596 2.23      
16 A 468 454 6.87      
17 A 319 309 0.99      
18 A 161 156 0.02      
19 A 142 138 1.19      
20 A 52 51 10.95      
21 B 3173 3073 20.26      
22 B 3167 3067 20.13      
23 B 3117 3019 7.34      
24 B 3042 2946 10.58      
25 B 1654 1602 267.67      
26 B 1485 1438 5.23      
27 B 1479 1432 44.59      
28 B 1417 1372 94.46      
29 B 1280 1239 79.81      
30 B 1217 1179 227.07      
31 B 1069 1035 9.14      
32 B 1021 989 1.39      
33 B 916 887 13.89      
34 B 806 780 6.14      
35 B 532 515 27.60      
36 B 493 478 2.79      
37 B 400 387 2.60      
38 B 159 154 0.31      
39 B 44 42 12.79      

Unscaled Zero Point Vibrational Energy (zpe) 26726.7 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 25882.1 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/CEP-31G
ABC
0.13184 0.06228 0.04891

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.015
C2 0.000 1.262 0.109
C3 0.000 -1.262 0.109
C4 -1.366 1.783 -0.345
C5 1.366 -1.783 -0.345
O6 1.086 1.792 -0.242
O7 -1.086 -1.792 -0.242
H8 -0.906 -0.024 1.638
H9 0.906 0.024 1.638
H10 -1.238 2.570 -1.102
H11 -1.976 0.957 -0.749
H12 -1.914 2.196 0.522
H13 1.238 -2.570 -1.102
H14 1.976 -0.957 -0.749
H15 1.914 -2.196 0.522

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.55361.55362.62622.62622.44392.44391.09961.09963.55252.81632.95443.55252.81632.9544
C21.55362.52421.53113.36861.25843.26062.19362.16602.17032.17582.16954.20523.09253.9739
C31.55362.52423.36861.53113.26061.25842.16602.19364.20523.09253.97392.17032.17582.1695
C42.62621.53113.36864.49292.45413.58802.72233.49151.09941.10391.10585.12884.34055.2293
C52.62623.36861.53114.49293.58802.45413.49152.72235.12884.34055.22931.09941.10391.1058
O62.44391.25843.26062.45413.58804.19103.28652.58772.59683.21393.12224.44862.93344.1442
O72.44393.26061.25843.58802.45414.19102.58773.28654.44862.93344.14422.59683.21393.1222
H81.09962.19362.16602.72233.49153.28652.58771.81223.78792.79372.68114.31133.85653.7302
H91.09962.16602.19363.49152.72232.58773.28651.81224.31133.85653.73023.78792.79372.6811
H103.55252.17034.20521.09945.12882.59684.44863.78794.31131.80891.79925.70484.78425.9401
H112.81632.17583.09251.10394.34053.21392.93342.79373.85651.80891.77634.78424.39065.1659
H122.95442.16953.97391.10585.22933.12224.14422.68113.73021.79921.77635.94015.16595.8260
H133.55254.20522.17035.12881.09944.44862.59684.31133.78795.70484.78425.94011.80891.7992
H142.81633.09252.17584.34051.10392.93343.21393.85652.79374.78424.39065.16591.80891.7763
H152.95443.97392.16955.22931.10584.14423.12223.73022.68115.94015.16595.82601.79921.7763

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 116.715 C1 C2 O6 120.340
C1 C3 C5 116.715 C1 C3 O7 120.340
C2 C1 C3 108.654 C2 C1 H8 110.365
C2 C1 H9 108.226 C2 C4 H10 110.105
C2 C4 H11 110.273 C2 C4 H12 109.668
C3 C1 H8 108.226 C3 C1 H9 110.365
C3 C5 H13 110.105 C3 C5 H14 110.273
C3 C5 H15 109.668 C4 C2 O6 122.928
C5 C3 O7 122.928 H8 C1 H9 110.981
H10 C4 H11 110.377 H10 C4 H12 109.355
H11 C4 H12 107.006 H13 C5 H14 110.377
H13 C5 H15 109.355 H14 C5 H15 107.006
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.173      
2 C -0.167      
3 C -0.167      
4 C -0.399      
5 C -0.399      
6 O -0.072      
7 O -0.072      
8 H 0.190      
9 H 0.190      
10 H 0.196      
11 H 0.188      
12 H 0.150      
13 H 0.196      
14 H 0.188      
15 H 0.150      


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 1.600 1.600
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.738 -11.874 0.000
y -11.874 -47.463 0.000
z 0.000 0.000 -39.844
Traceless
 xyz
x -1.085 -11.874 0.000
y -11.874 -5.172 0.000
z 0.000 0.000 6.257
Polar
3z2-r212.513
x2-y22.725
xy-11.874
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.418 0.224 0.000
y 0.224 9.224 0.000
z 0.000 0.000 6.602


<r2> (average value of r2) Å2
<r2> 193.165
(<r2>)1/2 13.898