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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B3PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-345.685664
Energy at 298.15K-345.694120
HF Energy-345.685664
Nuclear repulsion energy296.275829
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 B3PW91/cc-pVDZ
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 3180 3069 5.02      
2 A 3125 3016 3.15      
3 A 3085 2977 2.45      
4 A 3046 2939 0.13      
5 A 1831 1766 22.93      
6 A 1446 1396 8.42      
7 A 1441 1390 18.12      
8 A 1426 1376 9.01      
9 A 1365 1317 8.83      
10 A 1265 1221 22.22      
11 A 1129 1089 1.30      
12 A 1064 1027 1.03      
13 A 933 901 0.77      
14 A 796 768 0.20      
15 A 624 602 2.05      
16 A 488 471 5.50      
17 A 322 311 0.85      
18 A 183 176 0.19      
19 A 142 137 0.73      
20 A 63 61 6.99      
21 B 3180 3069 5.10      
22 B 3164 3054 4.82      
23 B 3125 3015 0.04      
24 B 3045 2939 3.50      
25 B 1804 1740 333.04      
26 B 1441 1390 1.42      
27 B 1432 1382 24.05      
28 B 1362 1315 113.58      
29 B 1238 1194 166.27      
30 B 1185 1144 122.34      
31 B 1050 1013 4.81      
32 B 981 946 0.59      
33 B 894 863 18.21      
34 B 817 789 8.61      
35 B 546 527 27.71      
36 B 501 484 0.98      
37 B 411 397 1.23      
38 B 183 176 0.71      
39 B 42 40 10.18      

Unscaled Zero Point Vibrational Energy (zpe) 26676.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 25742.6 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 B3PW91/cc-pVDZ
ABC
0.13759 0.06550 0.05158

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.008
C2 0.000 1.233 0.102
C3 0.000 -1.233 0.102
C4 -1.355 1.756 -0.295
C5 1.355 -1.756 -0.295
O6 1.041 1.711 -0.296
O7 -1.041 -1.711 -0.296
H8 -0.905 -0.033 1.630
H9 0.905 0.033 1.630
H10 -1.257 2.527 -1.069
H11 -1.985 0.923 -0.648
H12 -1.859 2.181 0.589
H13 1.257 -2.527 -1.069
H14 1.985 -0.923 -0.648
H15 1.859 -2.181 0.589

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53091.53092.57252.57252.39022.39021.09841.09843.50422.74532.89633.50422.74532.8963
C21.53092.46681.50563.30591.21273.14812.18162.14342.14992.14442.14294.13383.02543.9183
C31.53092.46683.30591.50563.14811.21272.14342.18164.13383.02543.91832.14992.14442.1429
C42.57251.50563.30594.43612.39733.48062.66583.43211.09701.10211.10285.07574.29665.1587
C52.57253.30591.50564.43613.48062.39733.43212.66585.07574.29665.15871.09701.10211.1028
O62.39021.21273.14812.39733.48064.00553.24662.55742.55833.14703.06894.31272.81984.0742
O72.39023.14811.21273.48062.39734.00552.55743.24664.31272.81984.07422.55833.14703.0689
H81.09842.18162.14342.66583.43213.24662.55741.81183.73632.69602.62604.26293.78593.6517
H91.09842.14342.18163.43212.66582.55743.24661.81184.26293.78593.65173.73632.69602.6260
H103.50422.14994.13381.09705.07572.55834.31273.73634.26291.81081.79775.64424.75295.8841
H112.74532.14443.02541.10214.29663.14702.81982.69603.78591.81081.76904.75294.37865.0936
H122.89632.14293.91831.10285.15873.06894.07422.62603.65171.79771.76905.88415.09365.7317
H133.50424.13382.14995.07571.09704.31272.55834.26293.73635.64424.75295.88411.81081.7977
H142.74533.02542.14444.29661.10212.81983.14703.78592.69604.75294.37865.09361.81081.7690
H152.89633.91832.14295.15871.10284.07423.06893.65172.62605.88415.09365.73171.79771.7690

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.810 C1 C2 O6 120.757
C1 C3 C5 115.810 C1 C3 O7 120.757
C2 C1 C3 107.347 C2 C1 H8 111.073
C2 C1 H9 108.085 C2 C4 H10 110.406
C2 C4 H11 109.673 C2 C4 H12 109.508
C3 C1 H8 108.085 C3 C1 H9 111.073
C3 C5 H13 110.406 C3 C5 H14 109.673
C3 C5 H15 109.508 C4 C2 O6 123.383
C5 C3 O7 123.383 H8 C1 H9 111.127
H10 C4 H11 110.858 H10 C4 H12 109.613
H11 C4 H12 106.707 H13 C5 H14 110.858
H13 C5 H15 109.613 H14 C5 H15 106.707
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.028      
2 C 0.012      
3 C 0.012      
4 C -0.060      
5 C -0.060      
6 O -0.210      
7 O -0.210      
8 H 0.054      
9 H 0.054      
10 H 0.064      
11 H 0.080      
12 H 0.072      
13 H 0.064      
14 H 0.080      
15 H 0.072      


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 1.489 1.489
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.983 -8.781 0.000
y -8.781 -44.943 0.000
z 0.000 0.000 -39.916
Traceless
 xyz
x -0.554 -8.781 0.000
y -8.781 -3.493 0.000
z 0.000 0.000 4.047
Polar
3z2-r28.094
x2-y21.959
xy-8.781
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.422 -0.498 0.000
y -0.498 9.502 0.000
z 0.000 0.000 7.148


<r2> (average value of r2) Å2
<r2> 229.468
(<r2>)1/2 15.148