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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-343.802480
Energy at 298.15K-343.811200
HF Energy-343.802480
Nuclear repulsion energy297.752647
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 mPW1PW91/3-21G*
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 3195 3034 5.59      
2 A 3137 2979 2.54      
3 A 3133 2975 0.04      
4 A 3072 2917 0.13      
5 A 1789 1699 11.21      
6 A 1539 1462 26.05      
7 A 1531 1453 1.84      
8 A 1507 1431 20.89      
9 A 1440 1368 6.71      
10 A 1291 1226 31.72      
11 A 1169 1110 6.25      
12 A 1128 1071 4.09      
13 A 963 915 1.12      
14 A 801 761 0.01      
15 A 648 615 1.47      
16 A 480 455 5.39      
17 A 342 324 1.14      
18 A 215 204 0.35      
19 A 157 149 0.37      
20 A 75 71 6.68      
21 B 3211 3050 1.86      
22 B 3195 3034 4.06      
23 B 3136 2978 0.18      
24 B 3071 2916 2.39      
25 B 1765 1676 189.27      
26 B 1538 1461 9.14      
27 B 1525 1448 33.75      
28 B 1441 1368 137.60      
29 B 1289 1224 70.36      
30 B 1193 1133 235.91      
31 B 1086 1031 16.22      
32 B 1050 997 0.97      
33 B 909 864 33.37      
34 B 800 760 9.51      
35 B 550 522 21.92      
36 B 515 489 6.43      
37 B 430 408 0.85      
38 B 215 204 1.64      
39 B 57 54 12.51      

Unscaled Zero Point Vibrational Energy (zpe) 27293.7 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 25918.1 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 mPW1PW91/3-21G*
ABC
0.13167 0.06950 0.05367

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.050
C2 0.000 1.212 0.113
C3 0.000 -1.212 0.113
C4 -1.387 1.612 -0.321
C5 1.387 -1.612 -0.321
O6 1.044 1.720 -0.291
O7 -1.044 -1.720 -0.291
H8 -0.905 -0.012 1.659
H9 0.905 0.012 1.659
H10 -1.342 2.312 -1.156
H11 -1.943 0.709 -0.598
H12 -1.914 2.080 0.520
H13 1.342 -2.312 -1.156
H14 1.943 -0.709 -0.598
H15 1.914 -2.080 0.520

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53211.53212.53012.53012.41862.41861.09091.09093.46582.64512.87563.46582.64512.8756
C21.53212.42421.50733.17591.22993.13902.16952.15592.14952.13002.14033.97862.82353.8293
C31.53212.42423.17591.50733.13901.22992.15592.16953.97862.82353.82932.14952.13002.1403
C42.53011.50733.17594.25292.43413.34972.60523.42521.09061.09651.09694.85184.06865.0229
C52.53013.17591.50734.25293.34972.43413.42522.60524.85184.06865.02291.09061.09651.0969
O62.41861.22993.13902.43413.34974.02493.25652.59592.60613.16943.08854.13452.60793.9815
O72.41863.13901.22993.34972.43414.02492.59593.25654.13452.60793.98152.60613.16943.0885
H81.09092.16952.15592.60523.42523.25652.59591.81103.67592.58652.58634.27313.70063.6768
H91.09092.15592.16953.42522.60522.59593.25651.81104.27313.70063.67683.67592.58652.5863
H103.46582.14953.97861.09064.85182.60614.13453.67594.27311.80111.78575.34634.49755.7178
H112.64512.13002.82351.09654.06863.16942.60792.58653.70061.80111.76944.49754.13724.8891
H122.87562.14033.82931.09695.02293.08853.98152.58633.67681.78571.76945.71784.88915.6525
H133.46583.97862.14954.85181.09064.13452.60614.27313.67595.34634.49755.71781.80111.7857
H142.64512.82352.13004.06861.09652.60793.16943.70062.58654.49754.13724.88911.80111.7694
H152.87563.82932.14035.02291.09693.98153.08853.67682.58635.71784.88915.65251.78571.7694

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 112.694 C1 C2 O6 121.870
C1 C3 C5 112.694 C1 C3 O7 121.870
C2 C1 C3 104.586 C2 C1 H8 110.481
C2 C1 H9 109.407 C2 C4 H10 110.634
C2 C4 H11 108.748 C2 C4 H12 109.535
C3 C1 H8 109.407 C3 C1 H9 110.481
C3 C5 H13 110.634 C3 C5 H14 108.748
C3 C5 H15 109.535 C4 C2 O6 125.260
C5 C3 O7 125.260 H8 C1 H9 112.209
H10 C4 H11 110.870 H10 C4 H12 109.440
H11 C4 H12 107.552 H13 C5 H14 110.870
H13 C5 H15 109.440 H14 C5 H15 107.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.616      
2 C 0.438      
3 C 0.438      
4 C -0.711      
5 C -0.711      
6 O -0.447      
7 O -0.447      
8 H 0.262      
9 H 0.262      
10 H 0.253      
11 H 0.263      
12 H 0.249      
13 H 0.253      
14 H 0.263      
15 H 0.249      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.469 1.469
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.132 -8.814 0.000
y -8.814 -45.952 0.000
z 0.000 0.000 -40.209
Traceless
 xyz
x -0.051 -8.814 0.000
y -8.814 -4.281 0.000
z 0.000 0.000 4.333
Polar
3z2-r28.665
x2-y22.820
xy-8.814
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.387 -0.192 0.000
y -0.192 8.190 0.000
z 0.000 0.000 6.252


<r2> (average value of r2) Å2
<r2> 222.868
(<r2>)1/2 14.929