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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: MP2=FULL/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 MP2=FULL/6-311G**
 hartrees
Energy at 0K-345.053719
Energy at 298.15K-345.062295
HF Energy-343.812677
Nuclear repulsion energy297.359075
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 MP2=FULL/6-311G**
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 3213 3048 6.06      
2 A 3168 3006 4.50      
3 A 3121 2961 2.70      
4 A 3084 2925 0.07      
5 A 1788 1696 12.81      
6 A 1497 1420 6.52      
7 A 1494 1418 19.03      
8 A 1481 1404 8.47      
9 A 1403 1331 8.44      
10 A 1291 1225 22.27      
11 A 1154 1095 1.33      
12 A 1084 1028 0.11      
13 A 956 907 1.52      
14 A 809 767 0.31      
15 A 625 593 1.83      
16 A 494 468 6.15      
17 A 324 307 0.70      
18 A 175 166 0.03      
19 A 149 141 0.66      
20 A 63 59 6.29      
21 B 3213 3048 5.61      
22 B 3202 3038 4.61      
23 B 3168 3005 0.74      
24 B 3084 2925 3.61      
25 B 1767 1676 205.59      
26 B 1494 1417 1.00      
27 B 1485 1409 25.11      
28 B 1402 1330 97.92      
29 B 1268 1203 141.68      
30 B 1210 1148 93.35      
31 B 1074 1019 2.94      
32 B 1006 954 0.73      
33 B 916 869 14.45      
34 B 824 782 7.16      
35 B 553 525 24.99      
36 B 498 473 1.12      
37 B 419 397 1.19      
38 B 175 166 0.19      
39 B 75 71 10.29      

Unscaled Zero Point Vibrational Energy (zpe) 27101.2 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 25708.2 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 MP2=FULL/6-311G**
ABC
0.13584 0.06712 0.05261

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.031
C2 0.000 1.217 0.108
C3 0.000 -1.217 0.108
C4 -1.361 1.712 -0.313
C5 1.361 -1.712 -0.313
O6 1.043 1.700 -0.289
O7 -1.043 -1.700 -0.289
H8 -0.902 -0.030 1.645
H9 0.902 0.030 1.645
H10 -1.262 2.457 -1.102
H11 -1.970 0.867 -0.648
H12 -1.865 2.153 0.553
H13 1.262 -2.457 -1.102
H14 1.970 -0.867 -0.648
H15 1.865 -2.153 0.553

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52781.52782.56702.56702.39222.39221.09151.09153.48982.72942.88853.48982.72942.8885
C21.52782.43491.50823.25761.21643.12412.17552.14142.14302.13852.13364.06932.96573.8781
C31.52782.43493.25761.50823.12411.21642.14142.17554.06932.96573.87812.14302.13852.1336
C42.56701.50823.25764.37462.40493.42742.66053.43271.08981.09391.09484.98884.22605.1089
C52.56703.25761.50824.37463.42742.40493.43272.66054.98884.22605.10891.08981.09391.0948
O62.39221.21643.12412.40493.42743.99013.24342.55922.55893.14673.06164.24202.75294.0295
O72.39223.12411.21643.42742.40493.99012.55923.24344.24202.75294.02952.55893.14673.0616
H81.09152.17552.14142.66053.43273.24342.55921.80513.72292.68352.62424.25633.76873.6545
H91.09152.14142.17553.43272.66052.55923.24341.80514.25633.76873.65453.72292.68352.6242
H103.48982.14304.06931.08984.98882.55894.24203.72294.25631.79891.78755.52484.65835.8117
H112.72942.13852.96571.09394.22603.14672.75292.68353.76871.79891.76324.65834.30405.0269
H122.88852.13363.87811.09485.10893.06164.02952.62423.65451.78751.76325.81175.02695.6974
H133.48984.06932.14304.98881.08984.24202.55894.25633.72295.52484.65835.81171.79891.7875
H142.72942.96572.13854.22601.09392.75293.14673.76872.68354.65834.30405.02691.79891.7632
H152.88853.87812.13365.10891.09484.02953.06163.65452.62425.81175.02695.69741.78751.7632

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.455 C1 C2 O6 120.898
C1 C3 C5 115.455 C1 C3 O7 120.898
C2 C1 C3 105.659 C2 C1 H8 111.213
C2 C1 H9 108.527 C2 C4 H10 110.109
C2 C4 H11 109.512 C2 C4 H12 109.078
C3 C1 H8 108.527 C3 C1 H9 111.213
C3 C5 H13 110.109 C3 C5 H14 109.512
C3 C5 H15 109.078 C4 C2 O6 123.580
C5 C3 O7 123.580 H8 C1 H9 111.556
H10 C4 H11 110.928 H10 C4 H12 109.815
H11 C4 H12 107.339 H13 C5 H14 110.928
H13 C5 H15 109.815 H14 C5 H15 107.339
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability