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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: B3PW91/6-31G**

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**
 hartrees
Energy at 0K-345.673443
Energy at 298.15K-345.681842
HF Energy-345.673443
Nuclear repulsion energy296.222980
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**
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 3186 3053 6.04      
2 A 3128 2998 4.51      
3 A 3095 2966 2.22      
4 A 3055 2928 0.28      
5 A 1841 1765 19.35      
6 A 1481 1420 14.86      
7 A 1478 1416 10.53      
8 A 1464 1403 7.88      
9 A 1392 1334 7.75      
10 A 1276 1223 26.55      
11 A 1143 1096 1.94      
12 A 1075 1030 1.01      
13 A 940 901 0.63      
14 A 793 760 0.14      
15 A 624 598 1.60      
16 A 486 466 6.05      
17 A 321 308 0.84      
18 A 173 166 0.17      
19 A 141 135 0.91      
20 A 60 58 7.47      
21 B 3186 3053 6.30      
22 B 3170 3038 4.97      
23 B 3128 2998 0.32      
24 B 3055 2928 2.55      
25 B 1814 1739 311.46      
26 B 1478 1417 1.54      
27 B 1471 1410 23.40      
28 B 1391 1333 106.89      
29 B 1252 1200 146.95      
30 B 1193 1143 156.63      
31 B 1059 1015 5.58      
32 B 994 952 0.80      
33 B 896 859 19.76      
34 B 812 778 9.39      
35 B 545 522 26.76      
36 B 499 478 0.80      
37 B 408 391 1.44      
38 B 173 165 0.60      
39 B 42 41 10.97      

Unscaled Zero Point Vibrational Energy (zpe) 26858.5 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 25741.2 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**
ABC
0.13736 0.06539 0.05146

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.009
C2 0.000 1.236 0.103
C3 0.000 -1.236 0.103
C4 -1.356 1.751 -0.305
C5 1.356 -1.751 -0.305
O6 1.043 1.721 -0.284
O7 -1.043 -1.721 -0.284
H8 -0.900 -0.032 1.628
H9 0.900 0.032 1.628
H10 -1.253 2.515 -1.077
H11 -1.977 0.921 -0.661
H12 -1.866 2.178 0.566
H13 1.253 -2.515 -1.077
H14 1.977 -0.921 -0.661
H15 1.866 -2.178 0.566

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53191.53192.57502.57502.39152.39151.09261.09263.49922.74662.90193.49922.74662.9019
C21.53192.47151.50693.30541.21373.15872.17722.14072.14472.14252.14124.12673.02393.9178
C31.53192.47153.30541.50693.15871.21372.14072.17724.12673.02393.91782.14472.14252.1412
C42.57501.50693.30544.42912.39923.48562.66893.43201.09061.09561.09645.05964.28645.1552
C52.57503.30541.50694.42913.48562.39923.43202.66895.05964.28645.15521.09061.09561.0964
O62.39151.21373.15872.39923.48564.02403.24042.55492.55593.14633.06534.31392.82724.0740
O72.39153.15871.21373.48562.39924.02402.55493.24044.31392.82724.07402.55593.14633.0653
H81.09262.17722.14072.66893.43203.24042.55491.80043.73172.70322.63514.25623.78193.6581
H91.09262.14072.17723.43202.66892.55493.24041.80044.25623.78193.65813.73172.70322.6351
H103.49922.14474.12671.09065.05962.55594.31393.73174.25621.79861.78585.61954.73415.8695
H112.74662.14253.02391.09564.28643.14632.82722.70323.78191.79861.75994.73414.36155.0870
H122.90192.14123.91781.09645.15523.06534.07402.63513.65811.78581.75995.86955.08705.7360
H133.49924.12672.14475.05961.09064.31392.55594.25623.73175.61954.73415.86951.79861.7858
H142.74663.02392.14254.28641.09562.82723.14633.78192.70324.73414.36155.08701.79861.7599
H152.90193.91782.14125.15521.09644.07403.06533.65812.63515.86955.08705.73601.78581.7599

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 115.851 C1 C2 O6 120.722
C1 C3 C5 115.851 C1 C3 O7 120.722
C2 C1 C3 107.548 C2 C1 H8 111.004
C2 C1 H9 108.140 C2 C4 H10 110.288
C2 C4 H11 109.813 C2 C4 H12 109.658
C3 C1 H8 108.140 C3 C1 H9 111.004
C3 C5 H13 110.288 C3 C5 H14 109.813
C3 C5 H15 109.658 C4 C2 O6 123.377
C5 C3 O7 123.377 H8 C1 H9 110.965
H10 C4 H11 110.719 H10 C4 H12 109.484
H11 C4 H12 106.812 H13 C5 H14 110.719
H13 C5 H15 109.484 H14 C5 H15 106.812
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.380      
2 C 0.417      
3 C 0.417      
4 C -0.466      
5 C -0.466      
6 O -0.428      
7 O -0.428      
8 H 0.163      
9 H 0.163      
10 H 0.166      
11 H 0.178      
12 H 0.160      
13 H 0.166      
14 H 0.178      
15 H 0.160      


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 1.495 1.495
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.812 -9.202 0.000
y -9.202 -44.967 0.000
z 0.000 0.000 -39.576
Traceless
 xyz
x -0.541 -9.202 0.000
y -9.202 -3.773 0.000
z 0.000 0.000 4.313
Polar
3z2-r28.627
x2-y22.155
xy-9.202
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.118 -0.247 0.000
y -0.247 9.237 0.000
z 0.000 0.000 6.872


<r2> (average value of r2) Å2
<r2> 229.609
(<r2>)1/2 15.153