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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B2PLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/3-21G
 hartrees
Energy at 0K-343.420330
Energy at 298.15K-343.429016
HF Energy-343.180254
Nuclear repulsion energy296.165644
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 B2PLYP/3-21G
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 3188 3188 7.72      
2 A 3135 3135 4.30      
3 A 3129 3129 0.75      
4 A 3076 3076 0.08      
5 A 1721 1721 7.32      
6 A 1560 1560 20.39      
7 A 1553 1553 1.70      
8 A 1528 1528 16.70      
9 A 1455 1455 5.61      
10 A 1286 1286 29.57      
11 A 1169 1169 5.49      
12 A 1135 1135 3.07      
13 A 957 957 3.07      
14 A 787 787 0.05      
15 A 640 640 1.25      
16 A 474 474 5.63      
17 A 339 339 0.85      
18 A 217 217 0.26      
19 A 155 155 0.36      
20 A 75 75 6.06      
21 B 3203 3203 3.35      
22 B 3187 3187 5.57      
23 B 3135 3135 0.13      
24 B 3075 3075 3.30      
25 B 1700 1700 128.15      
26 B 1560 1560 5.65      
27 B 1547 1547 40.19      
28 B 1456 1456 105.00      
29 B 1296 1296 50.94      
30 B 1188 1188 201.96      
31 B 1085 1085 22.12      
32 B 1063 1063 1.06      
33 B 899 899 39.47      
34 B 775 775 10.63      
35 B 543 543 19.63      
36 B 509 509 6.14      
37 B 426 426 0.52      
38 B 216 216 1.17      
39 B 48 48 11.80      

Unscaled Zero Point Vibrational Energy (zpe) 27243.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 27243.9 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 B2PLYP/3-21G
ABC
0.13014 0.06871 0.05309

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.060
C2 0.000 1.219 0.118
C3 0.000 -1.219 0.118
C4 -1.393 1.624 -0.327
C5 1.393 -1.624 -0.327
O6 1.053 1.727 -0.291
O7 -1.053 -1.727 -0.291
H8 -0.904 -0.012 1.669
H9 0.904 0.012 1.669
H10 -1.335 2.328 -1.157
H11 -1.943 0.723 -0.617
H12 -1.926 2.087 0.510
H13 1.335 -2.328 -1.157
H14 1.943 -0.723 -0.617
H15 1.926 -2.087 0.510

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.54001.54002.54932.54932.43282.43281.09001.09003.48032.66662.89313.48032.66662.8931
C21.54002.43721.51733.19651.23943.15532.17652.16252.15342.13602.14953.99782.84373.8464
C31.54002.43723.19651.51733.15531.23942.16252.17653.99782.84373.84642.15342.13602.1495
C42.54931.51733.19654.27902.44883.36872.62633.44281.08991.09511.09544.87294.08945.0491
C52.54933.19651.51734.27903.36872.44883.44282.62634.87294.08945.04911.08991.09511.0954
O62.43281.23943.15532.44883.36874.04663.27092.60852.61033.17743.10684.15592.62733.9948
O72.43283.15531.23943.36872.44884.04662.60853.27094.15592.62733.99482.61033.17743.1068
H81.09002.17652.16252.62633.44283.27092.60851.80793.69392.61652.60704.28433.71973.6957
H91.09002.16252.17653.44282.62632.60853.27091.80794.28433.71973.69573.69392.61652.6070
H103.48032.15343.99781.08994.87292.61034.15593.69394.28431.79901.78545.36634.51045.7366
H112.66662.13602.84371.09514.08943.17742.62732.61653.71971.79901.77024.51044.14704.9138
H122.89312.14953.84641.09545.04913.10683.99482.60703.69571.78541.77025.73664.91385.6811
H133.48033.99782.15344.87291.08994.15592.61034.28433.69395.36634.51045.73661.79901.7854
H142.66662.84372.13604.08941.09512.62733.17743.71972.61654.51044.14704.91381.79901.7702
H152.89313.84642.14955.04911.09543.99483.10683.69572.60705.73664.91385.68111.78541.7702

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 112.987 C1 C2 O6 121.784
C1 C3 C5 112.987 C1 C3 O7 121.784
C2 C1 C3 104.607 C2 C1 H8 110.527
C2 C1 H9 109.429 C2 C4 H10 110.290
C2 C4 H11 108.623 C2 C4 H12 109.657
C3 C1 H8 109.429 C3 C1 H9 110.527
C3 C5 H13 110.290 C3 C5 H14 108.623
C3 C5 H15 109.657 C4 C2 O6 125.025
C5 C3 O7 125.025 H8 C1 H9 112.065
H10 C4 H11 110.833 H10 C4 H12 109.568
H11 C4 H12 107.824 H13 C5 H14 110.833
H13 C5 H15 109.568 H14 C5 H15 107.824
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.560      
2 C 0.434      
3 C 0.434      
4 C -0.635      
5 C -0.635      
6 O -0.430      
7 O -0.430      
8 H 0.232      
9 H 0.232      
10 H 0.224      
11 H 0.234      
12 H 0.221      
13 H 0.224      
14 H 0.234      
15 H 0.221      


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 1.398 1.398
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.924 -8.350 0.000
y -8.350 -46.312 0.000
z 0.000 0.000 -40.796
Traceless
 xyz
x -0.370 -8.350 0.000
y -8.350 -3.952 0.000
z 0.000 0.000 4.322
Polar
3z2-r28.643
x2-y22.388
xy-8.350
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.342 -0.133 0.000
y -0.133 8.052 0.000
z 0.000 0.000 6.246


<r2> (average value of r2) Å2
<r2> 225.367
(<r2>)1/2 15.012