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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: QCISD(T)=FULL/6-31G*

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(T)=FULL/6-31G*
 hartrees
Energy at 0K-344.834217
Energy at 298.15K-344.842694
HF Energy-343.723018
Nuclear repulsion energy295.914846
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(T)=FULL/6-31G*
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 3177 3177 0.00      
2 A 3127 3127 0.00      
3 A 3085 3085 0.00      
4 A 3055 3055 0.00      
5 A 1803 1803 0.00      
6 A 1519 1519 0.00      
7 A 1515 1515 0.00      
8 A 1504 1504 0.00      
9 A 1431 1431 0.00      
10 A 1304 1304 0.00      
11 A 1166 1166 0.00      
12 A 1097 1097 0.00      
13 A 967 967 0.00      
14 A 807 807 0.00      
15 A 629 629 0.00      
16 A 489 489 0.00      
17 A 320 320 0.00      
18 A 170 170 0.00      
19 A 148 148 0.00      
20 A 62 62 0.00      
21 B 3177 3177 0.00      
22 B 3152 3152 0.00      
23 B 3127 3127 0.00      
24 B 3054 3054 0.00      
25 B 1783 1783 0.00      
26 B 1516 1516 0.00      
27 B 1512 1512 0.00      
28 B 1432 1432 0.00      
29 B 1290 1290 0.00      
30 B 1224 1224 0.00      
31 B 1080 1080 0.00      
32 B 1023 1023 0.00      
33 B 920 920 0.00      
34 B 820 820 0.00      
35 B 546 546 0.00      
36 B 495 495 0.00      
37 B 416 416 0.00      
38 B 165 165 0.00      
39 B 65 65 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 27085.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 27085.2 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 QCISD(T)=FULL/6-31G*
ABC
0.13534 0.06617 0.05196

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.029
C2 0.000 1.225 0.110
C3 0.000 -1.225 0.110
C4 -1.357 1.740 -0.310
C5 1.357 -1.740 -0.310
O6 1.055 1.700 -0.293
O7 -1.055 -1.700 -0.293
H8 -0.902 -0.030 1.652
H9 0.902 0.030 1.652
H10 -1.242 2.498 -1.090
H11 -1.973 0.904 -0.669
H12 -1.871 2.177 0.558
H13 1.242 -2.498 -1.090
H14 1.973 -0.904 -0.669
H15 1.871 -2.177 0.558

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53111.53112.58112.58112.39792.39791.09661.09663.50352.75502.90903.50352.75502.9090
C21.53112.44961.51143.28771.22513.13562.18262.14902.14612.14502.14704.10423.00493.9083
C31.53112.44963.28771.51143.13561.22512.14902.18264.10423.00493.90832.14612.14502.1470
C42.58111.51143.28774.41382.41253.45392.68073.44631.09411.09851.09935.03304.26735.1499
C52.58113.28771.51144.41383.45392.41253.44632.68075.03304.26735.14991.09411.09851.0993
O62.39791.22513.13562.41253.45394.00203.25612.56802.55913.15303.08434.27792.78694.0528
O72.39793.13561.22513.45392.41254.00202.56803.25614.27792.78694.05282.55913.15303.0843
H81.09662.18262.14902.68073.44633.25612.56801.80513.74472.72052.64654.26723.79633.6739
H91.09662.14902.18263.44632.68072.56803.25611.80514.26723.79633.67393.74472.72052.6465
H103.50352.14614.10421.09415.03302.55914.27793.74474.26721.80361.79335.58024.70005.8540
H112.75502.14503.00491.09854.26733.15302.78692.72053.79631.80361.77094.70004.34005.0768
H122.90902.14703.90831.09935.14993.08434.05282.64653.67391.79331.77095.85405.07685.7414
H133.50354.10422.14615.03301.09414.27792.55914.26723.74475.58024.70005.85401.80361.7933
H142.75503.00492.14504.26731.09852.78693.15303.79632.72054.70004.34005.07681.80361.7709
H152.90903.90832.14705.14991.09934.05283.08433.67392.64655.85405.07685.74141.79331.7709

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 116.066 C1 C2 O6 120.521
C1 C3 C5 116.066 C1 C3 O7 120.521
C2 C1 C3 106.251 C2 C1 H8 111.253
C2 C1 H9 108.609 C2 C4 H10 109.876
C2 C4 H11 109.531 C2 C4 H12 109.638
C3 C1 H8 108.609 C3 C1 H9 111.253
C3 C5 H13 109.876 C3 C5 H14 109.531
C3 C5 H15 109.638 C4 C2 O6 123.335
C5 C3 O7 123.335 H8 C1 H9 110.789
H10 C4 H11 110.694 H10 C4 H12 109.693
H11 C4 H12 107.368 H13 C5 H14 110.694
H13 C5 H15 109.693 H14 C5 H15 107.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability