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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B2PLYP=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 B2PLYP=FULL/6-31G*
 hartrees
Energy at 0K-345.434865
Energy at 298.15K-345.443351
HF Energy-345.094724
Nuclear repulsion energy296.200095
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/6-31G*
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 3205 3040 7.04      
2 A 3151 2988 5.56      
3 A 3118 2957 2.65      
4 A 3083 2924 0.34      
5 A 1808 1715 16.83      
6 A 1523 1444 5.74      
7 A 1521 1443 15.99      
8 A 1508 1430 7.26      
9 A 1433 1359 6.43      
10 A 1300 1233 27.00      
11 A 1168 1108 1.56      
12 A 1100 1043 0.62      
13 A 962 913 1.17      
14 A 803 762 0.20      
15 A 631 599 1.29      
16 A 490 464 6.90      
17 A 323 306 0.78      
18 A 176 167 0.13      
19 A 147 139 0.90      
20 A 61 58 7.15      
21 B 3205 3040 7.28      
22 B 3186 3022 6.00      
23 B 3151 2988 1.08      
24 B 3083 2924 2.98      
25 B 1785 1693 248.56      
26 B 1521 1443 0.80      
27 B 1516 1438 26.91      
28 B 1433 1359 82.39      
29 B 1284 1218 115.28      
30 B 1218 1155 150.97      
31 B 1083 1027 6.04      
32 B 1025 972 0.66      
33 B 916 868 18.06      
34 B 814 772 8.63      
35 B 549 520 25.71      
36 B 499 474 1.32      
37 B 416 394 1.25      
38 B 176 167 0.37      
39 B 56 53 11.23      

Unscaled Zero Point Vibrational Energy (zpe) 27213.0 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 25808.8 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/6-31G*
ABC
0.13644 0.06584 0.05178

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.020
C2 0.000 1.230 0.107
C3 0.000 -1.230 0.107
C4 -1.357 1.749 -0.301
C5 1.357 -1.749 -0.301
O6 1.049 1.704 -0.296
O7 -1.049 -1.704 -0.296
H8 -0.898 -0.031 1.640
H9 0.898 0.031 1.640
H10 -1.249 2.510 -1.074
H11 -1.976 0.921 -0.659
H12 -1.865 2.179 0.568
H13 1.249 -2.510 -1.074
H14 1.976 -0.921 -0.659
H15 1.865 -2.179 0.568

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53161.53162.57822.57822.39492.39491.09151.09153.49962.75172.90363.49962.75172.9036
C21.53162.45901.50923.29861.21943.14092.17812.14302.14362.14152.14334.11573.01893.9126
C31.53162.45903.29861.50923.14091.21942.14302.17814.11573.01893.91262.14362.14152.1433
C42.57821.50923.29864.42752.40593.46662.67313.43591.08971.09451.09525.05274.28515.1544
C52.57823.29861.50924.42753.46662.40593.43592.67315.05274.28515.15441.08971.09451.0952
O62.39491.21943.14092.40593.46664.00103.24752.56282.55653.14523.07664.28942.80674.0604
O72.39493.14091.21943.46662.40594.00102.56283.24754.28942.80674.06042.55653.14523.0766
H81.09152.17812.14302.67313.43593.24752.56281.79793.73392.71102.63914.25703.78633.6605
H91.09152.14302.17813.43592.67312.56283.24751.79794.25703.78633.66053.73392.71102.6391
H103.49962.14364.11571.08975.05272.55654.28943.73394.25701.79601.78525.60734.72675.8637
H112.75172.14153.01891.09454.28513.14522.80672.71103.78631.79601.76124.72674.35955.0860
H122.90362.14333.91261.09525.15443.07664.06042.63913.66051.78521.76125.86375.08605.7364
H133.49964.11572.14365.05271.08974.28942.55654.25703.73395.60734.72675.86371.79601.7852
H142.75173.01892.14154.28511.09452.80673.14523.78632.71104.72674.35955.08601.79601.7612
H152.90363.91262.14335.15441.09524.06043.07663.66052.63915.86375.08605.73641.78521.7612

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.961 C1 C2 O6 120.614
C1 C3 C5 115.961 C1 C3 O7 120.614
C2 C1 C3 106.785 C2 C1 H8 111.159
C2 C1 H9 108.397 C2 C4 H10 110.095
C2 C4 H11 109.642 C2 C4 H12 109.745
C3 C1 H8 108.397 C3 C1 H9 111.159
C3 C5 H13 110.095 C3 C5 H14 109.642
C3 C5 H15 109.745 C4 C2 O6 123.352
C5 C3 O7 123.352 H8 C1 H9 110.882
H10 C4 H11 110.631 H10 C4 H12 109.588
H11 C4 H12 107.088 H13 C5 H14 110.631
H13 C5 H15 109.588 H14 C5 H15 107.088
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability