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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-344.994810
Energy at 298.15K-345.003376
HF Energy-343.800409
Nuclear repulsion energy297.273387
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 3211 3041 5.91      
2 A 3166 2999 4.54      
3 A 3120 2955 2.56      
4 A 3083 2920 0.09      
5 A 1786 1691 11.80      
6 A 1518 1437 7.81      
7 A 1509 1429 25.64      
8 A 1501 1421 8.08      
9 A 1425 1350 10.16      
10 A 1307 1237 22.16      
11 A 1171 1109 2.29      
12 A 1096 1038 0.29      
13 A 966 915 1.10      
14 A 812 769 0.18      
15 A 630 596 2.11      
16 A 496 470 5.98      
17 A 326 309 0.81      
18 A 169 160 0.02      
19 A 150 142 0.69      
20 A 62 59 6.64      
21 B 3211 3041 5.86      
22 B 3200 3031 4.47      
23 B 3166 2999 0.80      
24 B 3083 2920 3.30      
25 B 1764 1671 205.07      
26 B 1509 1429 1.42      
27 B 1506 1426 32.73      
28 B 1425 1349 109.57      
29 B 1279 1212 149.65      
30 B 1219 1155 94.94      
31 B 1082 1024 3.09      
32 B 1019 965 0.75      
33 B 922 873 13.01      
34 B 826 782 6.91      
35 B 557 527 24.98      
36 B 501 475 1.04      
37 B 420 398 1.28      
38 B 170 161 0.16      
39 B 74 70 10.54      

Unscaled Zero Point Vibrational Energy (zpe) 27217.1 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 25777.3 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 MP2=FULL/6-311G*
ABC
0.13588 0.06699 0.05254

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 1.218 0.109
C3 0.000 -1.218 0.109
C4 -1.357 1.712 -0.321
C5 1.357 -1.712 -0.321
O6 1.046 1.705 -0.279
O7 -1.046 -1.705 -0.279
H8 -0.900 -0.033 1.648
H9 0.900 0.033 1.648
H10 -1.249 2.462 -1.104
H11 -1.966 0.875 -0.670
H12 -1.874 2.152 0.537
H13 1.249 -2.462 -1.104
H14 1.966 -0.875 -0.670
H15 1.874 -2.152 0.537

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52711.52712.56932.56932.39092.39091.09141.09143.48962.74322.89593.48962.74322.8959
C21.52712.43541.50713.25751.21723.12842.17722.14002.14002.14292.13714.07052.97523.8793
C31.52712.43543.25751.50713.12841.21722.14002.17724.07052.97523.87932.14002.14292.1371
C42.56931.50713.25754.36962.40293.43192.67043.43351.08911.09311.09424.98254.22605.1096
C52.56933.25751.50714.36963.43192.40293.43352.67044.98254.22605.10961.08911.09311.0942
O62.39091.21723.12842.40293.43194.00053.24302.55512.55303.14883.06414.25272.76714.0286
O72.39093.12841.21723.43192.40294.00052.55513.24304.25272.76714.02862.55303.14883.0641
H81.09142.17722.14002.67043.43353.24302.55511.80083.73062.70802.63754.25293.78093.6628
H91.09142.14002.17723.43352.67042.55513.24301.80084.25293.78093.66283.73062.70802.6375
H103.48962.14004.07051.08914.98252.55304.25273.73064.25291.79491.78335.52064.65375.8078
H112.74322.14292.97521.09314.22603.14882.76712.70803.78091.79491.76004.65374.30435.0364
H122.89592.13713.87931.09425.10963.06414.02862.63753.66281.78331.76005.80785.03645.7070
H133.48964.07052.14004.98251.08914.25272.55304.25293.73065.52064.65375.80781.79491.7833
H142.74322.97522.14294.22601.09312.76713.14883.78092.70804.65374.30435.03641.79491.7600
H152.89593.87932.13715.10961.09424.02863.06413.66282.63755.80785.03645.70701.78331.7600

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.726 C1 C2 O6 120.782
C1 C3 C5 115.726 C1 C3 O7 120.782
C2 C1 C3 105.760 C2 C1 H8 111.416
C2 C1 H9 108.476 C2 C4 H10 109.984
C2 C4 H11 109.980 C2 C4 H12 109.463
C3 C1 H8 108.476 C3 C1 H9 111.416
C3 C5 H13 109.984 C3 C5 H14 109.980
C3 C5 H15 109.463 C4 C2 O6 123.432
C5 C3 O7 123.432 H8 C1 H9 111.184
H10 C4 H11 110.673 H10 C4 H12 109.532
H11 C4 H12 107.157 H13 C5 H14 110.673
H13 C5 H15 109.532 H14 C5 H15 107.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability