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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B2PLYP/6-311G*

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/6-311G*
 hartrees
Energy at 0K-345.530602
Energy at 298.15K-345.539086
HF Energy-345.175915
Nuclear repulsion energy296.367361
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/6-311G*
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 3179 3179 9.62      
2 A 3127 3127 8.69      
3 A 3099 3099 4.28      
4 A 3062 3062 0.27      
5 A 1792 1792 18.89      
6 A 1508 1508 3.77      
7 A 1504 1504 22.94      
8 A 1493 1493 9.15      
9 A 1417 1417 7.03      
10 A 1292 1292 23.78      
11 A 1163 1163 2.09      
12 A 1094 1094 0.44      
13 A 953 953 1.85      
14 A 797 797 0.21      
15 A 629 629 1.81      
16 A 491 491 6.34      
17 A 322 322 0.74      
18 A 170 170 0.03      
19 A 146 146 0.93      
20 A 62 62 7.13      
21 B 3179 3179 11.02      
22 B 3168 3168 8.26      
23 B 3127 3127 1.77      
24 B 3062 3062 4.97      
25 B 1767 1767 281.55      
26 B 1504 1504 0.92      
27 B 1500 1500 33.69      
28 B 1417 1417 93.27      
29 B 1276 1276 112.40      
30 B 1205 1205 155.58      
31 B 1076 1076 8.00      
32 B 1016 1016 0.72      
33 B 907 907 22.94      
34 B 808 808 9.36      
35 B 551 551 26.02      
36 B 501 501 1.24      
37 B 415 415 1.21      
38 B 171 171 0.27      
39 B 54 54 10.60      

Unscaled Zero Point Vibrational Energy (zpe) 27000.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 27000.1 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 B2PLYP/6-311G*
ABC
0.13724 0.06556 0.05163

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.015
C2 0.000 1.232 0.103
C3 0.000 -1.232 0.103
C4 -1.358 1.754 -0.298
C5 1.358 -1.754 -0.298
O6 1.042 1.709 -0.295
O7 -1.042 -1.709 -0.295
H8 -0.897 -0.033 1.633
H9 0.897 0.033 1.633
H10 -1.254 2.513 -1.071
H11 -1.987 0.933 -0.650
H12 -1.858 2.187 0.573
H13 1.254 -2.513 -1.071
H14 1.987 -0.933 -0.650
H15 1.858 -2.187 0.573

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53281.53282.57822.57822.39152.39151.09001.09003.49862.75492.90423.49862.75492.9042
C21.53282.46451.50963.30541.21253.14522.17892.14092.14312.14582.14174.12093.03333.9203
C31.53282.46453.30541.50963.14521.21252.14092.17894.12093.03333.92032.14312.14582.1417
C42.57821.50963.30544.43742.40043.47752.67213.43211.08811.09261.09375.06324.30495.1618
C52.57823.30541.50964.43743.47752.40043.43212.67215.06324.30495.16181.08811.09261.0937
O62.39151.21253.14522.40043.47754.00243.24192.55842.55373.14633.06464.29822.82774.0743
O72.39153.14521.21253.47752.40044.00242.55843.24194.29822.82774.07432.55373.14633.0646
H81.09002.17892.14092.67213.43213.24192.55841.79503.73182.70862.64244.25343.78673.6548
H91.09002.14092.17893.43212.67212.55843.24191.79504.25343.78673.65483.73182.70862.6424
H103.49862.14314.12091.08815.06322.55374.29823.73184.25341.79231.78105.61814.74925.8727
H112.75492.14583.03331.09264.30493.14632.82772.70863.78671.79231.75704.74924.38925.1005
H122.90422.14173.92031.09375.16183.06464.07432.64243.65481.78101.75705.87275.10055.7407
H133.49864.12092.14315.06321.08814.29822.55374.25343.73185.61814.74925.87271.79231.7810
H142.75493.03332.14584.30491.09262.82773.14633.78672.70864.74924.38925.10051.79231.7570
H152.90423.92032.14175.16181.09374.07433.06463.65482.64245.87275.10055.74071.78101.7570

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.860 C1 C2 O6 120.734
C1 C3 C5 115.860 C1 C3 O7 120.734
C2 C1 C3 107.010 C2 C1 H8 111.230
C2 C1 H9 108.236 C2 C4 H10 110.121
C2 C4 H11 110.061 C2 C4 H12 109.668
C3 C1 H8 108.236 C3 C1 H9 111.230
C3 C5 H13 110.121 C3 C5 H14 110.061
C3 C5 H15 109.668 C4 C2 O6 123.354
C5 C3 O7 123.354 H8 C1 H9 110.847
H10 C4 H11 110.551 H10 C4 H12 109.430
H11 C4 H12 106.951 H13 C5 H14 110.551
H13 C5 H15 109.430 H14 C5 H15 106.951
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.585      
2 C 0.308      
3 C 0.308      
4 C -0.706      
5 C -0.706      
6 O -0.287      
7 O -0.287      
8 H 0.248      
9 H 0.248      
10 H 0.242      
11 H 0.250      
12 H 0.237      
13 H 0.242      
14 H 0.250      
15 H 0.237      


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 1.557 1.557
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.320 -8.803 0.000
y -8.803 -46.101 0.000
z 0.000 0.000 -40.730
Traceless
 xyz
x -0.904 -8.803 0.000
y -8.803 -3.576 0.000
z 0.000 0.000 4.480
Polar
3z2-r28.961
x2-y21.781
xy-8.803
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.464 -0.358 0.000
y -0.358 9.383 0.000
z 0.000 0.000 7.238


<r2> (average value of r2) Å2
<r2> 230.071
(<r2>)1/2 15.168