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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-345.692559
Energy at 298.15K-345.700826
HF Energy-345.692559
Nuclear repulsion energy293.705254
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 BLYP/6-31G(2df,p)
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 3077 3060 9.25      
2 A 3016 3000 6.75      
3 A 2997 2981 3.65      
4 A 2960 2944 0.21      
5 A 1741 1731 17.52      
6 A 1438 1430 3.66      
7 A 1435 1427 10.92      
8 A 1421 1413 4.75      
9 A 1339 1332 3.07      
10 A 1219 1213 25.62      
11 A 1102 1096 1.73      
12 A 1041 1035 0.56      
13 A 897 892 2.36      
14 A 753 749 0.31      
15 A 602 598 1.49      
16 A 467 465 4.59      
17 A 312 311 0.73      
18 A 181 180 0.13      
19 A 139 138 0.68      
20 A 66 66 6.07      
21 B 3077 3060 10.42      
22 B 3066 3049 8.57      
23 B 3016 2999 0.51      
24 B 2960 2943 4.87      
25 B 1713 1704 275.65      
26 B 1435 1427 0.61      
27 B 1430 1422 21.03      
28 B 1339 1332 63.15      
29 B 1194 1188 50.76      
30 B 1132 1126 235.48      
31 B 1028 1023 16.59      
32 B 968 963 1.36      
33 B 850 845 47.48      
34 B 760 755 20.93      
35 B 525 522 24.46      
36 B 483 480 0.60      
37 B 399 397 1.13      
38 B 181 180 0.43      
39 B 42 41 9.20      

Unscaled Zero Point Vibrational Energy (zpe) 25900.2 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 25757.7 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 BLYP/6-31G(2df,p)
ABC
0.13466 0.06437 0.05066

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.023
C2 0.000 1.248 0.102
C3 0.000 -1.248 0.102
C4 -1.378 1.763 -0.295
C5 1.378 -1.763 -0.295
O6 1.045 1.730 -0.304
O7 -1.045 -1.730 -0.304
H8 -0.905 -0.030 1.644
H9 0.905 0.030 1.644
H10 -1.291 2.528 -1.077
H11 -2.003 0.922 -0.638
H12 -1.884 2.193 0.586
H13 1.291 -2.528 -1.077
H14 2.003 -0.922 -0.638
H15 1.884 -2.193 0.586

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.55091.55092.59702.59702.41762.41761.09831.09833.53092.76052.92373.53092.76052.9237
C21.55092.49631.52363.33541.22043.18222.19792.16312.16702.16012.16224.16133.04453.9527
C31.55092.49633.33541.52363.18221.22042.16312.19794.16133.04453.95272.16702.16012.1622
C42.59701.52363.33544.47532.42323.50902.68343.46051.09721.10281.10355.11354.33085.2024
C52.59703.33541.52364.47533.50902.42323.46052.68345.11354.33085.20241.09721.10281.1035
O62.41761.22043.18222.42323.50904.04233.27062.58872.58713.17103.09604.33452.83934.1090
O72.41763.18221.22043.50902.42324.04232.58873.27064.33452.83934.10902.58713.17103.0960
H81.09832.19792.16312.68343.46053.27062.58871.81163.75482.70552.64934.29723.80263.6842
H91.09832.16312.19793.46052.68342.58873.27061.81164.29723.80263.68423.75482.70552.6493
H103.53092.16704.16131.09725.11352.58714.33453.75484.29721.81061.79755.67694.78995.9273
H112.76052.16013.04451.10284.33083.17102.83932.70553.80261.81061.76894.78994.40965.1290
H122.92372.16223.95271.10355.20243.09604.10902.64933.68421.79751.76895.92735.12905.7818
H133.53094.16132.16705.11351.09724.33452.58714.29723.75485.67694.78995.92731.81061.7975
H142.76053.04452.16014.33081.10282.83933.17103.80262.70554.78994.40965.12901.81061.7689
H152.92373.95272.16225.20241.10354.10903.09603.68422.64935.92735.12905.78181.79751.7689

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.273 C1 C2 O6 121.010
C1 C3 C5 115.273 C1 C3 O7 121.010
C2 C1 C3 107.183 C2 C1 H8 110.975
C2 C1 H9 108.263 C2 C4 H10 110.496
C2 C4 H11 109.621 C2 C4 H12 109.744
C3 C1 H8 108.263 C3 C1 H9 110.975
C3 C5 H13 110.496 C3 C5 H14 109.621
C3 C5 H15 109.744 C4 C2 O6 123.652
C5 C3 O7 123.652 H8 C1 H9 111.121
H10 C4 H11 110.777 H10 C4 H12 109.530
H11 C4 H12 106.593 H13 C5 H14 110.777
H13 C5 H15 109.530 H14 C5 H15 106.593
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.348      
2 C 0.361      
3 C 0.361      
4 C -0.440      
5 C -0.440      
6 O -0.260      
7 O -0.260      
8 H 0.108      
9 H 0.108      
10 H 0.125      
11 H 0.149      
12 H 0.130      
13 H 0.125      
14 H 0.149      
15 H 0.130      


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 1.409 1.409
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.142 -8.496 0.000
y -8.496 -44.876 0.000
z 0.000 0.000 -40.033
Traceless
 xyz
x -0.688 -8.496 0.000
y -8.496 -3.288 0.000
z 0.000 0.000 3.976
Polar
3z2-r27.952
x2-y21.734
xy-8.496
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.705 -0.585 0.000
y -0.585 10.467 0.000
z 0.000 0.000 7.396


<r2> (average value of r2) Å2
<r2> 233.145
(<r2>)1/2 15.269