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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: PBE1PBE/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 PBE1PBE/6-311G*
 hartrees
Energy at 0K-345.476987
Energy at 298.15K-345.485462
HF Energy-345.476987
Nuclear repulsion energy297.544573
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 PBE1PBE/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3180 3048 8.81      
2 A 3125 2995 6.49      
3 A 3098 2969 3.04      
4 A 3058 2931 0.27      
5 A 1848 1772 23.63      
6 A 1487 1425 5.42      
7 A 1483 1421 24.94      
8 A 1469 1408 10.60      
9 A 1399 1341 9.30      
10 A 1288 1235 23.10      
11 A 1154 1106 1.89      
12 A 1085 1040 0.88      
13 A 947 908 0.87      
14 A 804 770 0.17      
15 A 630 604 1.92      
16 A 494 473 6.18      
17 A 321 308 0.82      
18 A 172 165 0.09      
19 A 143 137 0.91      
20 A 64 62 7.51      
21 B 3180 3048 9.58      
22 B 3170 3038 7.22      
23 B 3125 2995 1.02      
24 B 3057 2931 3.38      
25 B 1820 1745 350.98      
26 B 1482 1421 0.74      
27 B 1479 1418 33.20      
28 B 1397 1339 120.55      
29 B 1263 1211 159.38      
30 B 1200 1151 136.86      
31 B 1066 1022 6.26      
32 B 1001 960 0.81      
33 B 904 867 18.97      
34 B 821 787 8.81      
35 B 552 529 27.26      
36 B 504 483 1.08      
37 B 411 394 1.34      
38 B 173 166 0.45      
39 B 49 47 10.87      

Unscaled Zero Point Vibrational Energy (zpe) 26952.1 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 25833.6 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 PBE1PBE/6-311G*
ABC
0.13843 0.06613 0.05206

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.009
C2 0.000 1.228 0.101
C3 0.000 -1.228 0.101
C4 -1.353 1.745 -0.295
C5 1.353 -1.745 -0.295
O6 1.035 1.703 -0.295
O7 -1.035 -1.703 -0.295
H8 -0.898 -0.034 1.628
H9 0.898 0.034 1.628
H10 -1.258 2.505 -1.069
H11 -1.983 0.920 -0.642
H12 -1.855 2.176 0.578
H13 1.258 -2.505 -1.069
H14 1.983 -0.920 -0.642
H15 1.855 -2.176 0.578

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52681.52682.56422.56422.38092.38091.09141.09143.48922.73942.89183.48922.73942.8918
C21.52682.45571.50203.29011.20563.13302.17452.13622.14082.14032.13724.10913.01623.9058
C31.52682.45573.29011.50203.13301.20562.13622.17454.10913.01623.90582.14082.14032.1372
C42.56421.50203.29014.41622.38893.46202.65833.41981.08941.09451.09535.04744.28395.1409
C52.56423.29011.50204.41623.46202.38893.41982.65835.04744.28395.14091.08941.09451.0953
O62.38091.20563.13302.38893.46203.98513.23222.54962.54973.13753.05574.28402.81004.0594
O72.38093.13301.20563.46202.38893.98512.54963.23224.28402.81004.05942.54973.13753.0557
H81.09142.17452.13622.65833.41983.23222.54961.79763.72122.69052.62694.24623.77373.6432
H91.09142.13622.17453.41982.65832.54963.23221.79764.24623.77373.64323.72122.69052.6269
H103.48922.14084.10911.08945.04742.54974.28403.72124.24621.79481.78285.60574.73425.8579
H112.73942.14033.01621.09454.28393.13752.81002.69053.77371.79481.75634.73424.37205.0798
H122.89182.13723.90581.09535.14093.05574.05942.62693.64321.78281.75635.85795.07985.7190
H133.48924.10912.14085.04741.08944.28402.54974.24623.72125.60574.73425.85791.79481.7828
H142.73943.01622.14034.28391.09452.81003.13753.77372.69054.73424.37205.07981.79481.7563
H152.89183.90582.13725.14091.09534.05943.05573.64322.62695.85795.07985.71901.78281.7563

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.690 C1 C2 O6 120.789
C1 C3 C5 115.690 C1 C3 O7 120.789
C2 C1 C3 107.065 C2 C1 H8 111.215
C2 C1 H9 108.207 C2 C4 H10 110.397
C2 C4 H11 110.045 C2 C4 H12 109.750
C3 C1 H8 108.207 C3 C1 H9 111.215
C3 C5 H13 110.397 C3 C5 H14 110.045
C3 C5 H15 109.750 C4 C2 O6 123.471
C5 C3 O7 123.471 H8 C1 H9 110.881
H10 C4 H11 110.544 H10 C4 H12 109.381
H11 C4 H12 106.648 H13 C5 H14 110.544
H13 C5 H15 109.381 H14 C5 H15 106.648
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.630      
2 C 0.321      
3 C 0.321      
4 C -0.744      
5 C -0.744      
6 O -0.296      
7 O -0.296      
8 H 0.263      
9 H 0.263      
10 H 0.256      
11 H 0.265      
12 H 0.251      
13 H 0.256      
14 H 0.265      
15 H 0.251      


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 1.587 1.587
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.664 -9.047 0.000
y -9.047 -45.635 0.000
z 0.000 0.000 -40.234
Traceless
 xyz
x -0.730 -9.047 0.000
y -9.047 -3.685 0.000
z 0.000 0.000 4.415
Polar
3z2-r28.831
x2-y21.970
xy-9.047
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.481 -0.399 0.000
y -0.399 9.506 0.000
z 0.000 0.000 7.229


<r2> (average value of r2) Å2
<r2> 228.071
(<r2>)1/2 15.102