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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: mPW1PW91/TZVP

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/TZVP
 hartrees
Energy at 0K-345.829103
Energy at 298.15K-345.837561
HF Energy-345.829103
Nuclear repulsion energy297.153851
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/TZVP
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 3182 3036 5.58      
2 A 3127 2984 4.12      
3 A 3101 2958 1.89      
4 A 3059 2919 0.42      
5 A 1835 1751 21.94      
6 A 1481 1413 9.28      
7 A 1476 1408 19.84      
8 A 1463 1396 8.23      
9 A 1395 1331 6.17      
10 A 1285 1226 23.90      
11 A 1151 1098 1.77      
12 A 1082 1032 0.86      
13 A 945 901 0.83      
14 A 798 761 0.13      
15 A 629 601 1.50      
16 A 496 473 6.19      
17 A 325 310 0.85      
18 A 163 156 0.00      
19 A 144 138 1.21      
20 A 56 54 8.47      
21 B 3182 3036 6.52      
22 B 3172 3026 4.49      
23 B 3127 2983 0.09      
24 B 3059 2919 1.54      
25 B 1805 1722 379.75      
26 B 1475 1408 0.95      
27 B 1469 1401 28.59      
28 B 1393 1329 104.24      
29 B 1264 1206 132.58      
30 B 1201 1146 170.66      
31 B 1065 1016 6.05      
32 B 999 953 1.28      
33 B 901 860 22.06      
34 B 817 780 10.23      
35 B 557 531 24.99      
36 B 506 482 1.27      
37 B 412 393 1.88      
38 B 163 155 0.20      
39 B 48 46 12.04      

Unscaled Zero Point Vibrational Energy (zpe) 26904.1 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 25666.5 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/TZVP
ABC
0.13942 0.06527 0.05147

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.995
C2 0.000 1.235 0.098
C3 0.000 -1.235 0.098
C4 -1.348 1.759 -0.302
C5 1.348 -1.759 -0.302
O6 1.036 1.723 -0.278
O7 -1.036 -1.723 -0.278
H8 -0.897 -0.030 1.612
H9 0.897 0.030 1.612
H10 -1.244 2.525 -1.066
H11 -1.980 0.942 -0.657
H12 -1.844 2.184 0.575
H13 1.244 -2.525 -1.066
H14 1.980 -0.942 -0.657
H15 1.844 -2.184 0.575

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52621.52622.56762.56762.37982.37981.08901.08903.48882.74492.88933.48882.74492.8893
C21.52622.46921.50073.30721.20573.15632.16712.13252.13732.13892.12844.12753.03723.9137
C31.52622.46923.30721.50073.15631.20572.13252.16714.12753.03723.91372.13732.13892.1284
C42.56761.50073.30724.43222.38493.49582.65813.41921.08721.09221.09335.06514.30055.1485
C52.56763.30721.50074.43223.49582.38493.41922.65815.06514.30055.14851.08721.09221.0933
O62.37981.20573.15632.38493.49584.02123.22232.54112.54263.13863.03914.32522.85194.0802
O72.37983.15631.20573.49582.38494.02122.54113.22234.32522.85194.08022.54263.13863.0391
H81.08902.16712.13252.65813.41923.22232.54111.79493.71762.69512.62234.24043.77543.6371
H91.08902.13252.16713.41922.65812.54113.22231.79494.24043.77543.63713.71762.69512.6223
H103.48882.13734.12751.08725.06512.54264.32523.71764.24041.79311.78025.62954.75175.8658
H112.74492.13893.03721.09224.30053.13862.85192.69513.77541.79311.75514.75174.38475.0902
H122.88932.12843.91371.09335.14853.03914.08022.62233.63711.78021.75515.86585.09025.7173
H133.48884.12752.13735.06511.08724.32522.54264.24043.71765.62954.75175.86581.79311.7802
H142.74493.03722.13894.30051.09222.85193.13863.77542.69514.75174.38475.09021.79311.7551
H152.88933.91372.12845.14851.09334.08023.03913.63712.62235.86585.09025.71731.78021.7551

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 116.045 C1 C2 O6 120.730
C1 C3 C5 116.045 C1 C3 O7 120.730
C2 C1 C3 107.987 C2 C1 H8 110.818
C2 C1 H9 108.095 C2 C4 H10 110.331
C2 C4 H11 110.164 C2 C4 H12 109.263
C3 C1 H8 108.095 C3 C1 H9 110.818
C3 C5 H13 110.331 C3 C5 H14 110.164
C3 C5 H15 109.263 C4 C2 O6 123.205
C5 C3 O7 123.205 H8 C1 H9 110.996
H10 C4 H11 110.716 H10 C4 H12 109.448
H11 C4 H12 106.844 H13 C5 H14 110.716
H13 C5 H15 109.448 H14 C5 H15 106.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.251      
2 C 0.162      
3 C 0.162      
4 C -0.391      
5 C -0.391      
6 O -0.262      
7 O -0.262      
8 H 0.161      
9 H 0.161      
10 H 0.153      
11 H 0.162      
12 H 0.141      
13 H 0.153      
14 H 0.162      
15 H 0.141      


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 1.587 1.587
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.886 -9.978 0.000
y -9.978 -46.086 0.000
z 0.000 0.000 -40.090
Traceless
 xyz
x -0.798 -9.978 0.000
y -9.978 -4.098 0.000
z 0.000 0.000 4.895
Polar
3z2-r29.791
x2-y22.200
xy-9.978
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.012 -0.184 0.000
y -0.184 10.077 0.000
z 0.000 0.000 7.621


<r2> (average value of r2) Å2
<r2> 229.773
(<r2>)1/2 15.158