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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: BLYP/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 BLYP/3-21G*
 hartrees
Energy at 0K-343.763939
Energy at 298.15K-343.772409
HF Energy-343.763939
Nuclear repulsion energy293.922368
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 BLYP/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 3084 3064 11.35      
2 A 3033 3013 3.28      
3 A 3020 3000 4.31      
4 A 2970 2951 0.09      
5 A 1677 1666 9.10      
6 A 1504 1494 17.04      
7 A 1497 1487 2.67      
8 A 1474 1464 13.34      
9 A 1392 1383 3.64      
10 A 1233 1225 26.80      
11 A 1122 1115 5.16      
12 A 1085 1077 3.24      
13 A 907 901 4.05      
14 A 751 746 0.04      
15 A 616 612 1.70      
16 A 457 454 3.74      
17 A 331 329 0.90      
18 A 218 217 0.41      
19 A 149 148 0.23      
20 A 80 80 5.34      
21 B 3104 3084 5.75      
22 B 3083 3063 8.26      
23 B 3020 3000 0.03      
24 B 2970 2950 6.12      
25 B 1654 1643 153.34      
26 B 1503 1493 6.41      
27 B 1492 1482 35.32      
28 B 1391 1382 105.90      
29 B 1232 1224 43.76      
30 B 1129 1122 200.54      
31 B 1040 1033 40.18      
32 B 1017 1010 3.73      
33 B 846 840 74.40      
34 B 734 730 23.80      
35 B 525 522 26.96      
36 B 491 488 2.10      
37 B 418 415 0.50      
38 B 218 217 1.36      
39 B 38 38 10.32      

Unscaled Zero Point Vibrational Energy (zpe) 26251.3 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 26080.6 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 BLYP/3-21G*
ABC
0.12809 0.06772 0.05231

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.068
C2 0.000 1.232 0.116
C3 0.000 -1.232 0.116
C4 -1.411 1.641 -0.311
C5 1.411 -1.641 -0.311
O6 1.057 1.730 -0.314
O7 -1.057 -1.730 -0.314
H8 -0.912 -0.013 1.679
H9 0.912 0.013 1.679
H10 -1.370 2.350 -1.149
H11 -1.966 0.727 -0.591
H12 -1.940 2.104 0.541
H13 1.370 -2.350 -1.149
H14 1.966 -0.727 -0.591
H15 1.940 -2.104 0.541

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.55731.55732.56622.56622.45392.45391.09781.09783.50942.67382.90993.50942.67382.9099
C21.55732.46481.52973.22931.24483.17482.19712.18192.17412.14972.16874.03872.86493.8826
C31.55732.46483.22931.52973.17481.24482.18192.19714.03872.86493.88262.17412.14972.1687
C42.56621.52973.22934.32782.46913.38962.63573.46491.09841.10491.10484.93574.13415.0967
C52.56623.22931.52974.32783.38962.46913.46492.63574.93574.13415.09671.09841.10491.1048
O62.45391.24483.17482.46913.38964.05493.30002.63482.64013.19683.13864.17652.63534.0265
O72.45393.17481.24483.38962.46914.05492.63483.30004.17652.63534.02652.64013.19683.1386
H81.09782.19712.18192.63573.46493.30002.63481.82423.71412.61082.61454.32043.73493.7147
H91.09782.18192.19713.46492.63572.63483.30001.82424.32043.73493.71473.71412.61082.6145
H103.50942.17414.03871.09844.93572.64014.17653.71414.32041.81611.80045.44034.57295.8008
H112.67382.14972.86491.10494.13413.19682.63532.61083.73491.81611.78264.57294.19274.9554
H122.90992.16873.88261.10485.09673.13864.02652.61453.71471.80041.78265.80084.95545.7236
H133.50944.03872.17414.93571.09844.17652.64014.32043.71415.44034.57295.80081.81611.8004
H142.67382.86492.14974.13411.10492.63533.19683.73492.61084.57294.19274.95541.81611.7826
H152.90993.88262.16875.09671.10484.02653.13863.71472.61455.80084.95545.72361.80041.7826

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 112.460 C1 C2 O6 121.863
C1 C3 C5 112.460 C1 C3 O7 121.863
C2 C1 C3 104.626 C2 C1 H8 110.485
C2 C1 H9 109.300 C2 C4 H10 110.565
C2 C4 H11 108.283 C2 C4 H12 109.761
C3 C1 H8 109.300 C3 C1 H9 110.485
C3 C5 H13 110.565 C3 C5 H14 108.283
C3 C5 H15 109.761 C4 C2 O6 125.417
C5 C3 O7 125.417 H8 C1 H9 112.367
H10 C4 H11 111.022 H10 C4 H12 109.603
H11 C4 H12 107.546 H13 C5 H14 111.022
H13 C5 H15 109.603 H14 C5 H15 107.546
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.504      
2 C 0.400      
3 C 0.400      
4 C -0.595      
5 C -0.595      
6 O -0.401      
7 O -0.401      
8 H 0.210      
9 H 0.210      
10 H 0.208      
11 H 0.221      
12 H 0.209      
13 H 0.208      
14 H 0.221      
15 H 0.209      


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 1.365 1.365
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.217 -8.011 0.000
y -8.011 -45.568 0.000
z 0.000 0.000 -40.605
Traceless
 xyz
x -0.130 -8.011 0.000
y -8.011 -3.657 0.000
z 0.000 0.000 3.787
Polar
3z2-r27.574
x2-y22.351
xy-8.011
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.794 -0.458 0.000
y -0.458 9.202 0.000
z 0.000 0.000 6.506


<r2> (average value of r2) Å2
<r2> 228.070
(<r2>)1/2 15.102