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All results from a given calculation for C5H6O (Pentadienal)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-268.987699
Energy at 298.15K-268.993101
HF Energy-268.987699
Nuclear repulsion energy192.498841
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 PBEPBE/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' 3191 3147 7.37      
2 A' 3117 3074 6.58      
3 A' 3100 3058 5.07      
4 A' 3093 3051 8.29      
5 A' 3064 3022 7.29      
6 A' 2778 2740 122.48      
7 A' 1725 1702 266.38      
8 A' 1652 1629 59.83      
9 A' 1610 1588 21.72      
10 A' 1417 1397 3.76      
11 A' 1375 1356 0.01      
12 A' 1285 1268 2.62      
13 A' 1279 1262 1.95      
14 A' 1226 1209 5.21      
15 A' 1167 1151 14.39      
16 A' 1112 1096 102.67      
17 A' 942 929 5.67      
18 A' 584 576 14.49      
19 A' 422 416 0.51      
20 A' 370 365 3.65      
21 A' 142 140 4.66      
22 A" 1023 1009 36.70      
23 A" 982 968 2.87      
24 A" 951 938 7.67      
25 A" 909 896 29.09      
26 A" 850 838 6.49      
27 A" 635 626 1.71      
28 A" 279 276 5.04      
29 A" 216 213 1.06      
30 A" 97 95 2.00      

Unscaled Zero Point Vibrational Energy (zpe) 20296.0 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 20017.9 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 PBEPBE/6-31G**
ABC
0.95067 0.04422 0.04226

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.090 -1.602 0.000
O2 -1.071 -2.831 0.000
C3 0.104 -0.751 0.000
C4 0.000 0.606 0.000
C5 1.116 1.527 0.000
C6 0.973 2.872 0.000
H7 -2.062 -1.033 0.000
H8 1.077 -1.255 0.000
H9 -1.007 1.050 0.000
H10 2.122 1.089 0.000
H11 -0.018 3.338 0.000
H12 1.836 3.543 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22881.46612.46313.82934.92741.12632.19492.65344.19035.05585.9190
O21.22882.38883.60044.87666.05872.05272.66453.88135.05576.25887.0056
C31.46612.38881.36142.49343.72632.18391.09612.11582.73104.09134.6303
C42.46313.60041.36141.44732.46612.63442.15041.10032.17622.73213.4632
C53.82934.87662.49341.44731.35264.08162.78242.17651.09722.13682.1401
C64.92746.05873.72632.46611.35264.94634.12842.69132.12171.09491.0927
H71.12632.05272.18392.63444.08164.94633.14692.33504.69134.82616.0112
H82.19492.66451.09612.15042.78244.12843.14693.10722.56584.72184.8573
H92.65343.88132.11581.10032.17652.69132.33503.10723.12932.49343.7813
H104.19035.05572.73102.17621.09722.12174.69132.56583.12933.10482.4710
H115.05586.25884.09132.73212.13681.09494.82614.72182.49343.10481.8647
H125.91907.00564.63033.46322.14011.09276.01124.85733.78132.47101.8647

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.131 C1 C3 H8 117.147
O2 C1 C3 124.616 O2 C1 H7 121.229
C3 C1 H7 114.155 C3 C4 C5 125.153
C3 C4 H9 118.130 C4 C3 H8 121.722
C4 C5 C6 123.439 C4 C5 H10 116.908
C5 C4 H9 116.718 C5 C6 H11 121.274
C5 C6 H12 121.783 C6 C5 H10 119.653
H11 C6 H12 116.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.235      
2 O -0.393      
3 C -0.123      
4 C -0.067      
5 C -0.044      
6 C -0.261      
7 H 0.062      
8 H 0.117      
9 H 0.108      
10 H 0.112      
11 H 0.124      
12 H 0.130      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.093 3.824 0.000 3.977
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.560 -2.818 0.000
y -2.818 -41.395 0.000
z 0.000 0.000 -37.226
Traceless
 xyz
x 6.750 -2.818 0.000
y -2.818 -6.501 0.000
z 0.000 0.000 -0.249
Polar
3z2-r2-0.498
x2-y28.834
xy-2.818
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.666 3.205 0.000
y 3.205 17.786 0.000
z 0.000 0.000 3.217


<r2> (average value of r2) Å2
<r2> 244.220
(<r2>)1/2 15.628