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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: QCISD/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 QCISD/cc-pVDZ
 hartrees
Energy at 0K-344.858203
Energy at 298.15K-344.866740
HF Energy-343.751998
Nuclear repulsion energy294.973697
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 QCISD/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 3191 3061 7.07      
2 A 3146 3019 7.20      
3 A 3100 2975 4.35      
4 A 3064 2940 0.07      
5 A 1824 1750 19.31      
6 A 1478 1418 9.78      
7 A 1476 1416 11.33      
8 A 1463 1403 6.90      
9 A 1399 1342 7.89      
10 A 1285 1233 21.19      
11 A 1145 1099 0.80      
12 A 1081 1038 0.25      
13 A 953 914 1.35      
14 A 804 772 0.26      
15 A 630 604 1.28      
16 A 489 469 7.28      
17 A 319 306 0.61      
18 A 183 175 0.02      
19 A 148 142 0.84      
20 A 60 57 6.27      
21 B 3191 3061 7.66      
22 B 3174 3045 7.17      
23 B 3146 3018 1.54      
24 B 3064 2940 6.86      
25 B 1806 1732 258.69      
26 B 1476 1416 1.23      
27 B 1467 1408 20.93      
28 B 1399 1342 80.51      
29 B 1284 1232 127.26      
30 B 1209 1160 79.59      
31 B 1069 1025 2.70      
32 B 1002 962 0.47      
33 B 916 879 9.09      
34 B 824 790 3.85      
35 B 546 524 25.16      
36 B 499 479 3.21      
37 B 412 395 0.92      
38 B 182 175 0.24      
39 B 60 57 9.99      

Unscaled Zero Point Vibrational Energy (zpe) 26981.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 25886.1 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 QCISD/cc-pVDZ
ABC
0.13550 0.06525 0.05130

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.020
C2 0.000 1.236 0.104
C3 0.000 -1.236 0.104
C4 -1.370 1.751 -0.301
C5 1.370 -1.751 -0.301
O6 1.045 1.718 -0.296
O7 -1.045 -1.718 -0.296
H8 -0.908 -0.030 1.644
H9 0.908 0.030 1.644
H10 -1.271 2.514 -1.088
H11 -1.992 0.907 -0.649
H12 -1.871 2.188 0.582
H13 1.271 -2.514 -1.088
H14 1.992 -0.907 -0.649
H15 1.871 -2.188 0.582

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53801.53802.58582.58582.40312.40311.10221.10223.51852.75252.91203.51852.75252.9120
C21.53802.47151.51833.31061.21843.15852.19032.15642.16122.15522.15304.13513.02123.9309
C31.53802.47153.31061.51833.15851.21842.15642.19034.13513.02123.93092.16122.15522.1530
C42.58581.51833.31064.44572.41453.48402.67763.45441.10091.10501.10585.07754.29965.1765
C52.58583.31061.51834.44573.48402.41453.45442.67765.07754.29965.17651.10091.10501.1058
O62.40311.21843.15852.41453.48404.02143.26082.57562.57333.16333.08114.31172.81294.0881
O72.40313.15851.21843.48402.41454.02142.57563.26084.31172.81294.08812.57333.16333.0811
H81.10222.19032.15642.67763.45443.26082.57561.81643.75112.70412.64114.28763.79973.6751
H91.10222.15642.19033.45442.67762.57563.26081.81644.28763.79973.67513.75112.70412.6411
H103.51852.16124.13511.10095.07752.57334.31173.75114.28761.81611.80465.63424.74815.8968
H112.75252.15523.02121.10504.29963.16332.81292.70413.79971.81611.78104.74814.37825.1009
H122.91202.15303.93091.10585.17653.08114.08812.64113.67511.80461.78105.89685.10095.7578
H133.51854.13512.16125.07751.10094.31172.57334.28763.75115.63424.74815.89681.81611.8046
H142.75253.02122.15524.29961.10502.81293.16333.79972.70414.74814.37825.10091.81611.7810
H152.91203.93092.15305.17651.10584.08813.08113.67512.64115.89685.10095.75781.80461.7810

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.567 C1 C2 O6 120.909
C1 C3 C5 115.567 C1 C3 O7 120.909
C2 C1 C3 106.925 C2 C1 H8 111.043
C2 C1 H9 108.391 C2 C4 H10 110.185
C2 C4 H11 109.468 C2 C4 H12 109.252
C3 C1 H8 108.391 C3 C1 H9 111.043
C3 C5 H13 110.185 C3 C5 H14 109.468
C3 C5 H15 109.252 C4 C2 O6 123.465
C5 C3 O7 123.465 H8 C1 H9 110.982
H10 C4 H11 110.825 H10 C4 H12 109.726
H11 C4 H12 107.327 H13 C5 H14 110.825
H13 C5 H15 109.726 H14 C5 H15 107.327
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability