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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: mPW1PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-341.283115
Energy at 298.15K-341.290946
HF Energy-341.283115
Nuclear repulsion energy288.942173
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 mPW1PW91/STO-3G
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 3544 3114 0.01      
2 A 3514 3089 0.24      
3 A 3390 2979 0.66      
4 A 3349 2943 0.36      
5 A 1905 1674 1.54      
6 A 1670 1468 0.39      
7 A 1667 1465 9.37      
8 A 1634 1436 2.36      
9 A 1544 1357 2.74      
10 A 1340 1178 28.49      
11 A 1225 1076 10.69      
12 A 1130 993 2.41      
13 A 1033 908 0.06      
14 A 822 723 0.05      
15 A 632 555 1.08      
16 A 464 408 3.83      
17 A 327 288 0.33      
18 A 157 138 0.09      
19 A 128 112 0.26      
20 A 43 38 2.83      
21 B 3544 3115 1.00      
22 B 3520 3094 0.24      
23 B 3514 3089 0.57      
24 B 3349 2943 2.69      
25 B 1884 1656 76.80      
26 B 1670 1467 14.46      
27 B 1667 1465 3.75      
28 B 1544 1357 20.08      
29 B 1367 1202 48.65      
30 B 1260 1107 197.22      
31 B 1130 993 9.96      
32 B 1081 950 0.35      
33 B 968 850 6.80      
34 B 850 747 2.45      
35 B 526 462 15.79      
36 B 495 435 0.73      
37 B 396 348 0.91      
38 B 140 123 0.11      
39 B 29 25 3.34      

Unscaled Zero Point Vibrational Energy (zpe) 29225.5 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 25686.3 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 mPW1PW91/STO-3G
ABC
0.13027 0.06155 0.04835

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.011
C2 0.000 1.282 0.113
C3 0.000 -1.282 0.113
C4 -1.405 1.696 -0.398
C5 1.405 -1.696 -0.398
O6 1.046 1.893 -0.177
O7 -1.046 -1.893 -0.177
H8 -0.900 -0.003 1.643
H9 0.900 0.003 1.643
H10 -1.321 2.509 -1.130
H11 -1.903 0.834 -0.861
H12 -2.024 2.034 0.445
H13 1.321 -2.509 -1.130
H14 1.903 -0.834 -0.861
H15 2.024 -2.034 0.445

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.56541.56542.61512.61512.46822.46821.09951.09953.55362.79732.92413.55362.79732.9241
C21.56542.56371.55143.33241.24623.35552.19112.18812.19022.18482.18404.20293.00783.8983
C31.56542.56373.33241.55143.35551.24622.18812.19114.20293.00783.89832.19022.18482.1840
C42.61511.55143.33244.40522.46913.61412.70353.51401.09681.09891.09915.06524.19045.1359
C52.61513.33241.55144.40523.61412.46913.51402.70355.06524.19045.13591.09681.09891.0991
O62.46821.24623.35552.46913.61414.32613.27052.62852.62563.20823.13574.51272.93874.0939
O72.46823.35551.24623.61412.46914.32612.62853.27054.51272.93874.09392.62563.20823.1357
H81.09952.19112.18812.70353.51403.27052.62851.80003.76512.82442.61594.34823.84983.7558
H91.09952.18812.19113.51402.70352.62853.27051.80004.34823.84983.75583.76512.82442.6159
H103.55362.19024.20291.09685.06522.62564.51273.76514.34821.79441.78895.67214.65265.8572
H112.79732.18483.00781.09894.19043.20822.93872.82443.84981.79441.77804.65264.15605.0347
H122.92412.18403.89831.09915.13593.13574.09392.61593.75581.78891.77805.85725.03475.7375
H133.55364.20292.19025.06521.09684.51272.62564.34823.76515.67214.65265.85721.79441.7889
H142.79733.00782.18484.19041.09892.93873.20823.84982.82444.65264.15605.03471.79441.7780
H152.92413.89832.18405.13591.09914.09393.13573.75582.61595.85725.03475.73751.78891.7780

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 114.079 C1 C2 O6 122.366
C1 C3 C5 114.079 C1 C3 O7 122.366
C2 C1 C3 109.941 C2 C1 H8 109.369
C2 C1 H9 109.133 C2 C4 H10 110.425
C2 C4 H11 109.870 C2 C4 H12 109.799
C3 C1 H8 109.133 C3 C1 H9 109.369
C3 C5 H13 110.425 C3 C5 H14 109.870
C3 C5 H15 109.799 C4 C2 O6 123.544
C5 C3 O7 123.544 H8 C1 H9 109.884
H10 C4 H11 109.619 H10 C4 H12 109.107
H11 C4 H12 107.977 H13 C5 H14 109.619
H13 C5 H15 109.107 H14 C5 H15 107.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.189      
2 C 0.161      
3 C 0.161      
4 C -0.256      
5 C -0.256      
6 O -0.183      
7 O -0.183      
8 H 0.092      
9 H 0.092      
10 H 0.093      
11 H 0.095      
12 H 0.092      
13 H 0.093      
14 H 0.095      
15 H 0.092      


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 0.664 0.664
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.749 -6.033 0.000
y -6.033 -42.239 0.000
z 0.000 0.000 -37.071
Traceless
 xyz
x -0.093 -6.033 0.000
y -6.033 -3.829 0.000
z 0.000 0.000 3.922
Polar
3z2-r27.845
x2-y22.490
xy-6.033
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.211 0.355 0.000
y 0.355 5.436 0.000
z 0.000 0.000 3.445


<r2> (average value of r2) Å2
<r2> 238.913
(<r2>)1/2 15.457