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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: MP2/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 MP2/cc-pVDZ
 hartrees
Energy at 0K-344.798781
Energy at 298.15K-344.807358
HF Energy-343.751225
Nuclear repulsion energy295.915348
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/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 3224 3071 4.97      
2 A 3179 3028 3.32      
3 A 3119 2971 2.74      
4 A 3085 2938 0.03      
5 A 1787 1702 12.97      
6 A 1474 1404 22.49      
7 A 1472 1402 0.01      
8 A 1456 1387 10.45      
9 A 1387 1321 9.75      
10 A 1279 1219 21.08      
11 A 1139 1085 1.10      
12 A 1072 1022 0.30      
13 A 948 903 1.10      
14 A 807 768 0.36      
15 A 625 596 1.77      
16 A 488 465 5.88      
17 A 321 306 0.66      
18 A 190 181 0.08      
19 A 149 142 0.57      
20 A 64 61 5.84      
21 B 3224 3070 4.52      
22 B 3205 3052 4.43      
23 B 3179 3028 0.40      
24 B 3085 2938 4.21      
25 B 1767 1684 197.89      
26 B 1473 1403 1.55      
27 B 1463 1393 22.63      
28 B 1385 1320 98.32      
29 B 1255 1195 162.06      
30 B 1199 1142 65.15      
31 B 1063 1013 1.55      
32 B 994 947 0.50      
33 B 910 867 11.76      
34 B 825 786 6.67      
35 B 545 519 24.94      
36 B 498 475 1.55      
37 B 415 395 0.86      
38 B 189 180 0.37      
39 B 70 67 9.71      

Unscaled Zero Point Vibrational Energy (zpe) 27004.1 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 25721.4 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/cc-pVDZ
ABC
0.13461 0.06652 0.05211

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.033
C2 0.000 1.224 0.108
C3 0.000 -1.224 0.108
C4 -1.367 1.718 -0.310
C5 1.367 -1.718 -0.310
O6 1.048 1.710 -0.294
O7 -1.048 -1.710 -0.294
H8 -0.909 -0.030 1.653
H9 0.909 0.030 1.653
H10 -1.274 2.470 -1.107
H11 -1.979 0.863 -0.644
H12 -1.877 2.162 0.563
H13 1.274 -2.470 -1.107
H14 1.979 -0.863 -0.644
H15 1.877 -2.162 0.563

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53361.53362.57402.57402.40432.40431.10051.10053.50682.73362.90113.50682.73362.9011
C21.53362.44791.51313.27151.22323.14102.18672.15322.15652.14762.14664.09162.97303.8978
C31.53362.44793.27151.51313.14101.22322.15322.18674.09162.97303.89782.15652.14762.1466
C42.57401.51313.27154.39222.41553.44292.66803.44741.09891.10311.10375.01494.23955.1326
C52.57403.27151.51314.39223.44292.41553.44742.66805.01494.23955.13261.09891.10311.1037
O62.40431.22323.14102.41553.44294.01053.26232.57502.57473.16233.08104.26342.75834.0508
O72.40433.14101.22323.44292.41554.01052.57503.26234.26342.75834.05082.57473.16233.0810
H81.10052.18672.15322.66803.44743.26232.57501.81843.74072.68662.63194.28143.78263.6731
H91.10052.15322.18673.44742.66802.57503.26231.81844.28143.78263.67313.74072.68662.6319
H103.50682.15654.09161.09895.01492.57474.26343.74074.28141.81411.80185.55734.67975.8449
H112.73362.14762.97301.10314.23953.16232.75832.68663.78261.81411.77614.67974.31765.0471
H122.90112.14663.89781.10375.13263.08104.05082.63193.67311.80181.77615.84495.04715.7256
H133.50684.09162.15655.01491.09894.26342.57474.28143.74075.55734.67975.84491.81411.8018
H142.73362.97302.14764.23951.10312.75833.16233.78262.68664.67974.31765.04711.81411.7761
H152.90113.89782.14665.13261.10374.05083.08103.67312.63195.84495.04715.72561.80181.7761

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.309 C1 C2 O6 121.002
C1 C3 C5 115.309 C1 C3 O7 121.002
C2 C1 C3 105.894 C2 C1 H8 111.160
C2 C1 H9 108.541 C2 C4 H10 110.298
C2 C4 H11 109.346 C2 C4 H12 109.239
C3 C1 H8 108.541 C3 C1 H9 111.160
C3 C5 H13 110.298 C3 C5 H14 109.346
C3 C5 H15 109.239 C4 C2 O6 123.613
C5 C3 O7 123.613 H8 C1 H9 111.419
H10 C4 H11 110.936 H10 C4 H12 109.770
H11 C4 H12 107.187 H13 C5 H14 110.936
H13 C5 H15 109.770 H14 C5 H15 107.187
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability