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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B2PLYP=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-345.481016
Energy at 298.15K-345.489431
HF Energy-345.119762
Nuclear repulsion energy295.592111
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=FULL/6-31+G**
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 3204 3047 6.07      
2 A 3149 2995 5.11      
3 A 3115 2962 2.95      
4 A 3077 2927 0.36      
5 A 1779 1692 19.39      
6 A 1504 1431 3.90      
7 A 1499 1426 21.33      
8 A 1487 1414 7.41      
9 A 1416 1347 4.76      
10 A 1290 1227 22.04      
11 A 1159 1102 0.98      
12 A 1087 1034 0.16      
13 A 956 909 1.14      
14 A 799 760 0.14      
15 A 628 597 1.36      
16 A 488 464 6.39      
17 A 323 307 0.83      
18 A 161 153 0.01      
19 A 143 136 1.20      
20 A 55 53 8.83      
21 B 3204 3047 7.45      
22 B 3188 3032 4.50      
23 B 3149 2995 0.52      
24 B 3077 2926 3.67      
25 B 1753 1667 326.32      
26 B 1499 1426 1.28      
27 B 1493 1420 31.76      
28 B 1415 1346 82.55      
29 B 1277 1214 114.36      
30 B 1210 1151 150.89      
31 B 1074 1021 6.63      
32 B 1011 962 0.92      
33 B 911 867 19.00      
34 B 814 775 9.68      
35 B 549 522 24.24      
36 B 498 474 1.73      
37 B 414 394 1.92      
38 B 162 154 0.13      
39 B 45 43 12.50      

Unscaled Zero Point Vibrational Energy (zpe) 27031.2 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 25706.7 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 B2PLYP=FULL/6-31+G**
ABC
0.13751 0.06486 0.05112

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.006
C2 0.000 1.235 0.102
C3 0.000 -1.235 0.102
C4 -1.349 1.777 -0.297
C5 1.349 -1.777 -0.297
O6 1.054 1.714 -0.291
O7 -1.054 -1.714 -0.291
H8 -0.898 -0.031 1.624
H9 0.898 0.031 1.624
H10 -1.232 2.553 -1.051
H11 -1.979 0.967 -0.672
H12 -1.849 2.191 0.583
H13 1.232 -2.553 -1.051
H14 1.979 -0.967 -0.672
H15 1.849 -2.191 0.583

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53101.53102.58402.58402.39422.39421.09011.09013.50282.76902.89763.50282.76902.8976
C21.53102.47091.50733.32491.22243.15672.17392.13852.14102.14172.13574.14753.06023.9228
C31.53102.47093.32491.50733.15671.22242.13852.17394.14753.06023.92282.14102.14172.1357
C42.58401.50733.32494.46212.40333.50382.67683.43321.08791.09291.09365.09724.32915.1714
C52.58403.32491.50734.46213.50382.40333.43322.67685.09724.32915.17141.08791.09291.0936
O62.39421.22243.15672.40333.50384.02423.24372.55462.55073.14633.06854.33812.86144.0797
O72.39423.15671.22243.50382.40334.02422.55463.24374.33812.86144.07972.55073.14633.0685
H81.09012.17392.13852.67683.43323.24372.55461.79623.73442.72722.63144.24883.79763.6455
H91.09012.13852.17393.43322.67682.55463.24371.79624.24883.79763.64553.73442.72722.6314
H103.50282.14104.14751.08795.09722.55074.33813.73444.24881.79381.78365.67004.77945.8878
H112.76902.14173.06021.09294.32913.14632.86142.72723.79761.79381.75824.77944.40445.1180
H122.89762.13573.92281.09365.17143.06854.07972.63143.64551.78361.75825.88785.11805.7330
H133.50284.14752.14105.09721.08794.33812.55074.24883.73445.67004.77945.88781.79381.7836
H142.76903.06022.14174.32911.09292.86143.14633.79762.72724.77944.40445.11801.79381.7582
H152.89763.92282.13575.17141.09364.07973.06853.64552.63145.88785.11805.73301.78361.7582

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 116.525 C1 C2 O6 120.396
C1 C3 C5 116.525 C1 C3 O7 120.396
C2 C1 C3 107.598 C2 C1 H8 110.956
C2 C1 H9 108.167 C2 C4 H10 110.119
C2 C4 H11 109.882 C2 C4 H12 109.367
C3 C1 H8 108.167 C3 C1 H9 110.956
C3 C5 H13 110.119 C3 C5 H14 109.882
C3 C5 H15 109.367 C4 C2 O6 123.047
C5 C3 O7 123.047 H8 C1 H9 110.955
H10 C4 H11 110.682 H10 C4 H12 109.687
H11 C4 H12 107.045 H13 C5 H14 110.682
H13 C5 H15 109.687 H14 C5 H15 107.045
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability