return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-343.776698
Energy at 298.15K-343.785476
HF Energy-343.776698
Nuclear repulsion energy297.038181
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 HF/aug-cc-pVDZ
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 3298 3004 10.67      
2 A 3245 2955 15.53      
3 A 3223 2935 5.84      
4 A 3176 2892 1.35      
5 A 1976 1799 35.29      
6 A 1585 1443 10.50      
7 A 1574 1433 12.49      
8 A 1560 1420 4.79      
9 A 1510 1375 5.62      
10 A 1375 1252 21.16      
11 A 1235 1124 0.51      
12 A 1174 1069 0.43      
13 A 1020 929 0.90      
14 A 850 774 0.02      
15 A 677 617 0.62      
16 A 525 478 12.10      
17 A 336 306 0.89      
18 A 174 158 0.28      
19 A 156 142 1.24      
20 A 43 40 10.12      
21 B 3299 3004 15.80      
22 B 3289 2995 11.74      
23 B 3245 2955 2.79      
24 B 3176 2892 6.73      
25 B 1951 1777 463.61      
26 B 1575 1434 1.18      
27 B 1562 1423 25.76      
28 B 1509 1375 74.72      
29 B 1405 1280 101.71      
30 B 1294 1178 103.29      
31 B 1147 1045 4.89      
32 B 1080 983 0.89      
33 B 983 895 5.59      
34 B 865 788 1.67      
35 B 588 535 29.64      
36 B 540 492 12.34      
37 B 431 393 3.29      
38 B 171 156 0.01      
39 B 55 50 14.68      

Unscaled Zero Point Vibrational Energy (zpe) 28438.0 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 25895.7 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 HF/aug-cc-pVDZ
ABC
0.14207 0.06407 0.05094

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.984
C2 0.000 1.241 0.092
C3 0.000 -1.241 0.092
C4 -1.343 1.818 -0.278
C5 1.343 -1.818 -0.278
O6 1.030 1.701 -0.298
O7 -1.030 -1.701 -0.298
H8 -0.893 -0.033 1.603
H9 0.893 0.033 1.603
H10 -1.218 2.610 -1.009
H11 -1.988 1.030 -0.668
H12 -1.819 2.215 0.621
H13 1.218 -2.610 -1.009
H14 1.988 -1.030 -0.668
H15 1.819 -2.215 0.621

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52861.52862.58802.58802.36572.36571.08701.08703.50282.78242.88933.50282.78242.8893
C21.52862.48261.50703.36091.19313.14122.16862.13072.13782.13852.13014.18683.11263.9413
C31.52862.48263.36091.50703.14121.19312.13072.16864.18683.11263.94132.13782.13852.1301
C42.58801.50703.36094.51912.37513.53212.67593.42341.08571.09011.09195.16674.39905.2023
C52.58803.36091.50704.51913.53212.37513.42342.67595.16674.39905.20231.08571.09011.0919
O62.36571.19313.14122.37513.53213.97603.21172.53242.52693.11293.03744.37292.91754.0985
O72.36573.14121.19313.53212.37513.97602.53243.21174.37292.91754.09852.52693.11293.0374
H81.08702.16862.13072.67593.42343.21172.53241.78793.72982.73562.62174.23353.80143.6173
H91.08702.13072.16863.42342.67592.53243.21171.78794.23353.80143.61733.72982.73562.6217
H103.50282.13784.18681.08575.16672.52694.37293.72984.23351.79001.78165.76064.86265.9297
H112.78242.13853.11261.09014.39903.11292.91752.73563.80141.79001.75854.86264.47745.1657
H122.88932.13013.94131.09195.20233.03744.09852.62173.61731.78161.75855.92975.16575.7326
H133.50284.18682.13785.16671.08574.37292.52694.23353.72985.76064.86265.92971.79001.7816
H142.78243.11262.13854.39901.09012.91753.11293.80142.73564.86264.47745.16571.79001.7585
H152.88933.94132.13015.20231.09194.09853.03743.61732.62175.92975.16575.73261.78161.7585

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 116.980 C1 C2 O6 120.234
C1 C3 C5 116.980 C1 C3 O7 120.234
C2 C1 C3 108.597 C2 C1 H8 110.884
C2 C1 H9 107.909 C2 C4 H10 110.025
C2 C4 H11 109.811 C2 C4 H12 109.047
C3 C1 H8 107.909 C3 C1 H9 110.884
C3 C5 H13 110.025 C3 C5 H14 109.811
C3 C5 H15 109.047 C4 C2 O6 122.775
C5 C3 O7 122.775 H8 C1 H9 110.652
H10 C4 H11 110.705 H10 C4 H12 109.805
H11 C4 H12 107.395 H13 C5 H14 110.705
H13 C5 H15 109.805 H14 C5 H15 107.395
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.671      
2 C 0.197      
3 C 0.197      
4 C 0.366      
5 C 0.366      
6 O -0.803      
7 O -0.803      
8 H -0.133      
9 H -0.133      
10 H -0.078      
11 H 0.024      
12 H 0.091      
13 H -0.078      
14 H 0.024      
15 H 0.091      


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 1.846 1.846
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.914 -10.622 0.000
y -10.622 -46.531 0.000
z 0.000 0.000 -40.452
Traceless
 xyz
x -1.423 -10.622 0.000
y -10.622 -3.848 0.000
z 0.000 0.000 5.270
Polar
3z2-r210.541
x2-y21.617
xy-10.622
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.852 -0.161 0.000
y -0.161 9.641 0.000
z 0.000 0.000 7.780


<r2> (average value of r2) Å2
<r2> 232.197
(<r2>)1/2 15.238