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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-345.690140
Energy at 298.15K-345.698570
HF Energy-345.690140
Nuclear repulsion energy296.912915
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 B3PW91/6-31G(2df,p)
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 3174 3052 6.02      
2 A 3118 2998 3.75      
3 A 3085 2966 2.28      
4 A 3045 2928 0.17      
5 A 1839 1768 20.25      
6 A 1467 1411 10.35      
7 A 1464 1408 10.59      
8 A 1450 1394 7.46      
9 A 1376 1323 7.16      
10 A 1266 1218 24.82      
11 A 1134 1090 1.39      
12 A 1072 1030 0.92      
13 A 932 896 0.82      
14 A 791 760 0.20      
15 A 623 599 1.33      
16 A 486 467 5.97      
17 A 318 306 0.81      
18 A 181 174 0.10      
19 A 141 135 0.74      
20 A 63 61 6.90      
21 B 3174 3052 6.39      
22 B 3162 3040 5.33      
23 B 3118 2997 0.18      
24 B 3045 2928 2.54      
25 B 1811 1741 310.66      
26 B 1464 1408 1.02      
27 B 1458 1401 22.30      
28 B 1374 1321 96.71      
29 B 1237 1189 131.03      
30 B 1184 1138 161.72      
31 B 1055 1015 5.60      
32 B 988 950 0.96      
33 B 891 857 21.88      
34 B 808 777 10.06      
35 B 542 522 25.62      
36 B 500 481 1.45      
37 B 406 390 1.49      
38 B 181 174 0.43      
39 B 44 42 10.71      

Unscaled Zero Point Vibrational Energy (zpe) 26733.3 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 25701.4 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 B3PW91/6-31G(2df,p)
ABC
0.13764 0.06588 0.05184

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.012
C2 0.000 1.231 0.101
C3 0.000 -1.231 0.101
C4 -1.360 1.744 -0.296
C5 1.360 -1.744 -0.296
O6 1.035 1.709 -0.295
O7 -1.035 -1.709 -0.295
H8 -0.900 -0.032 1.629
H9 0.900 0.032 1.629
H10 -1.270 2.504 -1.073
H11 -1.983 0.910 -0.639
H12 -1.861 2.172 0.580
H13 1.270 -2.504 -1.073
H14 1.983 -0.910 -0.639
H15 1.861 -2.172 0.580

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53191.53192.57012.57012.38802.38801.09201.09203.49732.73602.89293.49732.73602.8929
C21.53192.46231.50723.29561.20713.14252.17772.14152.14712.14052.13994.11613.01063.9085
C31.53192.46233.29561.50723.14251.20712.14152.17774.11613.01063.90852.14712.14052.1399
C42.57011.50723.29564.42412.39603.46902.65973.42811.09051.09571.09635.05664.28265.1464
C52.57013.29561.50724.42413.46902.39603.42812.65975.05664.28265.14641.09051.09571.0963
O62.38801.20713.14252.39603.46903.99713.23742.55642.55933.14123.06094.29132.80684.0638
O72.38803.14251.20713.46902.39603.99712.55643.23744.29132.80684.06382.55933.14123.0609
H81.09202.17772.14152.65973.42813.23742.55641.80173.72422.68392.62324.25733.77213.6480
H91.09202.14152.17773.42812.65972.55643.23741.80174.25733.77213.64803.72422.68392.6232
H103.49732.14714.11611.09055.05662.55934.29133.72424.25731.79961.78695.61534.73555.8654
H112.73602.14053.01061.09574.28263.14122.80682.68393.77211.79961.75884.73554.36365.0757
H122.89292.13993.90851.09635.14643.06094.06382.62323.64801.78691.75885.86545.07575.7209
H133.49734.11612.14715.05661.09054.29132.55934.25733.72425.61534.73555.86541.79961.7869
H142.73603.01062.14054.28261.09572.80683.14123.77212.68394.73554.36365.07571.79961.7588
H152.89293.90852.13995.14641.09634.06383.06093.64802.62325.86545.07575.72091.78691.7588

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.488 C1 C2 O6 120.890
C1 C3 C5 115.488 C1 C3 O7 120.890
C2 C1 C3 106.966 C2 C1 H8 111.078
C2 C1 H9 108.239 C2 C4 H10 110.465
C2 C4 H11 109.629 C2 C4 H12 109.546
C3 C1 H8 108.239 C3 C1 H9 111.078
C3 C5 H13 110.465 C3 C5 H14 109.629
C3 C5 H15 109.546 C4 C2 O6 123.574
C5 C3 O7 123.574 H8 C1 H9 111.171
H10 C4 H11 110.814 H10 C4 H12 109.597
H11 C4 H12 106.711 H13 C5 H14 110.814
H13 C5 H15 109.597 H14 C5 H15 106.711
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.431      
2 C 0.386      
3 C 0.386      
4 C -0.545      
5 C -0.545      
6 O -0.310      
7 O -0.310      
8 H 0.159      
9 H 0.159      
10 H 0.169      
11 H 0.188      
12 H 0.168      
13 H 0.169      
14 H 0.188      
15 H 0.168      


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 1.488 1.488
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.666 -8.835 0.000
y -8.835 -44.587 0.000
z 0.000 0.000 -39.451
Traceless
 xyz
x -0.647 -8.835 0.000
y -8.835 -3.528 0.000
z 0.000 0.000 4.175
Polar
3z2-r28.350
x2-y21.920
xy-8.835
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.325 -0.411 0.000
y -0.411 9.622 0.000
z 0.000 0.000 7.192


<r2> (average value of r2) Å2
<r2> 228.279
(<r2>)1/2 15.109