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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-345.689915
Energy at 298.15K-345.698378
HF Energy-345.689915
Nuclear repulsion energy293.766013
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 3174 3054 7.95      
2 A 3111 2993 6.69      
3 A 3091 2973 2.65      
4 A 3046 2930 0.55      
5 A 1735 1669 12.32      
6 A 1519 1461 7.71      
7 A 1516 1459 20.29      
8 A 1504 1446 12.49      
9 A 1439 1384 3.71      
10 A 1299 1249 30.96      
11 A 1171 1127 2.40      
12 A 1108 1066 1.76      
13 A 977 940 0.79      
14 A 796 766 0.03      
15 A 635 611 1.52      
16 A 485 466 6.69      
17 A 331 319 0.92      
18 A 173 166 0.16      
19 A 147 141 1.20      
20 A 57 55 9.14      
21 B 3174 3054 8.86      
22 B 3160 3040 6.20      
23 B 3110 2992 0.94      
24 B 3046 2930 3.05      
25 B 1710 1645 233.85      
26 B 1516 1459 3.02      
27 B 1510 1452 35.69      
28 B 1439 1384 92.53      
29 B 1298 1249 51.60      
30 B 1220 1174 255.14      
31 B 1083 1042 15.32      
32 B 1040 1000 0.86      
33 B 923 888 23.06      
34 B 813 782 9.40      
35 B 545 525 28.05      
36 B 505 486 1.27      
37 B 417 401 1.44      
38 B 171 165 0.73      
39 B 32 31 12.31      

Unscaled Zero Point Vibrational Energy (zpe) 27012.5 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 25986.0 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
0.13549 0.06417 0.05040

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 1.003
C2 0.000 1.247 0.108
C3 0.000 -1.247 0.108
C4 -1.351 1.770 -0.311
C5 1.351 -1.770 -0.311
O6 1.069 1.746 -0.276
O7 -1.069 -1.746 -0.276
H8 -0.898 -0.022 1.626
H9 0.898 0.022 1.626
H10 -1.238 2.540 -1.076
H11 -1.972 0.948 -0.687
H12 -1.874 2.196 0.556
H13 1.238 -2.540 -1.076
H14 1.972 -0.948 -0.687
H15 1.874 -2.196 0.556

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53491.53492.58492.58492.41392.41391.09281.09283.50762.76502.92123.50762.76502.9212
C21.53492.49351.50773.33131.24053.20092.17272.14712.14592.14752.14794.15573.05583.9450
C31.53492.49353.33131.50773.20091.24052.14712.17274.15573.05583.94502.14592.14752.1479
C42.58491.50773.33134.45242.41993.52682.67693.44371.09131.09701.09815.08494.30925.1839
C52.58493.33131.50774.45243.52682.41993.44372.67695.08494.30925.18391.09131.09701.0981
O62.41391.24053.20092.41993.52684.09403.25752.57282.56733.17093.09134.36262.87064.1079
O72.41393.20091.24053.52682.41994.09402.57283.25754.36262.87064.10792.56733.17093.0913
H81.09282.17272.14712.67693.44373.25752.57281.79573.73862.72882.64924.26593.80053.6814
H91.09282.14712.17273.44372.67692.57283.25751.79574.26593.80053.68143.73862.72882.6492
H103.50762.14594.15571.09135.08492.56734.36263.73864.26591.79561.78435.65074.75615.8966
H112.76502.14753.05581.09704.30923.17092.87062.72883.80051.79561.76374.75614.37665.1207
H122.92122.14793.94501.09815.18393.09134.10792.64923.68141.78431.76375.89665.12075.7735
H133.50764.15572.14595.08491.09134.36262.56734.26593.73865.65074.75615.89661.79561.7843
H142.76503.05582.14754.30921.09702.87063.17093.80052.72884.75614.37665.12071.79561.7637
H152.92123.94502.14795.18391.09814.10793.09133.68142.64925.89665.12075.77351.78431.7637

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 116.329 C1 C2 O6 120.491
C1 C3 C5 116.329 C1 C3 O7 120.491
C2 C1 C3 108.642 C2 C1 H8 110.424
C2 C1 H9 108.422 C2 C4 H10 110.291
C2 C4 H11 110.072 C2 C4 H12 110.044
C3 C1 H8 108.422 C3 C1 H9 110.424
C3 C5 H13 110.291 C3 C5 H14 110.072
C3 C5 H15 110.044 C4 C2 O6 123.124
C5 C3 O7 123.124 H8 C1 H9 110.490
H10 C4 H11 110.276 H10 C4 H12 109.171
H11 C4 H12 106.925 H13 C5 H14 110.276
H13 C5 H15 109.171 H14 C5 H15 106.925
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 -0.369      
2 C 0.354      
3 C 0.354      
4 C -0.476      
5 C -0.476      
6 O -0.401      
7 O -0.401      
8 H 0.173      
9 H 0.173      
10 H 0.176      
11 H 0.189      
12 H 0.170      
13 H 0.176      
14 H 0.189      
15 H 0.170      


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 1.603 1.603
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.195 -10.492 0.000
y -10.492 -46.336 0.000
z 0.000 0.000 -40.136
Traceless
 xyz
x -0.959 -10.492 0.000
y -10.492 -4.170 0.000
z 0.000 0.000 5.129
Polar
3z2-r210.259
x2-y22.141
xy-10.492
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.073 -0.003 0.000
y -0.003 8.967 0.000
z 0.000 0.000 6.557


<r2> (average value of r2) Å2
<r2> 233.912
(<r2>)1/2 15.294