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 C5H6O (Pentadienal)

using model chemistry: HSEh1PBE/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-269.112696
Energy at 298.15K-269.118267
HF Energy-269.112696
Nuclear repulsion energy194.711301
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 HSEh1PBE/6-311+G(3df,2p)
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' 3248 3248 4.59      
2 A' 3184 3184 3.65      
3 A' 3167 3167 4.57      
4 A' 3154 3154 4.78      
5 A' 3137 3137 3.95      
6 A' 2886 2886 87.94      
7 A' 1795 1795 417.64      
8 A' 1709 1709 72.14      
9 A' 1662 1662 33.14      
10 A' 1453 1453 5.07      
11 A' 1409 1409 0.09      
12 A' 1322 1322 2.53      
13 A' 1317 1317 2.39      
14 A' 1260 1260 4.47      
15 A' 1198 1198 31.25      
16 A' 1137 1137 111.47      
17 A' 965 965 5.36      
18 A' 604 604 16.29      
19 A' 434 434 0.56      
20 A' 384 384 4.15      
21 A' 148 148 6.42      
22 A" 1056 1056 44.39      
23 A" 1031 1031 3.68      
24 A" 997 997 22.32      
25 A" 969 969 22.55      
26 A" 892 892 8.75      
27 A" 660 660 2.77      
28 A" 288 288 7.35      
29 A" 214 214 1.79      
30 A" 96 96 3.01      

Unscaled Zero Point Vibrational Energy (zpe) 20887.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20887.1 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 HSEh1PBE/6-311+G(3df,2p)
ABC
0.96643 0.04525 0.04323

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.082 -1.585 0.000
O2 -1.068 -2.792 0.000
C3 0.106 -0.742 0.000
C4 0.000 0.595 0.000
C5 1.112 1.512 0.000
C6 0.965 2.837 0.000
H7 -2.045 -1.029 0.000
H8 1.069 -1.243 0.000
H9 -0.996 1.034 0.000
H10 2.108 1.078 0.000
H11 -0.018 3.294 0.000
H12 1.817 3.504 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.20631.45752.43413.79594.87401.11182.17882.62094.15594.99455.8580
O21.20632.36193.55084.82415.98512.01542.63933.82645.00596.17586.9258
C31.45752.36191.34142.46833.68152.17031.08522.09112.70544.03864.5786
C42.43413.55081.34141.44142.44172.61102.12631.08902.16252.69963.4307
C53.79594.82412.46831.44141.33394.05232.75512.16211.08612.11072.1139
C64.87405.98513.68152.44171.33394.89994.08202.66482.09811.08431.0820
H71.11182.01542.17032.61104.05234.89993.12152.31394.65654.77465.9554
H82.17882.63931.08522.12632.75514.08203.12153.07462.54274.66594.8062
H92.62093.82642.09111.08902.16212.66482.31393.07463.10472.46293.7444
H104.15595.00592.70542.16251.08612.09814.65652.54273.10473.07122.4440
H114.99456.17584.03862.69962.11071.08434.77464.66592.46293.07121.8473
H125.85806.92584.57863.43072.11391.08205.95544.80623.74442.44401.8473

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.785 C1 C3 H8 117.187
O2 C1 C3 124.655 O2 C1 H7 120.729
C3 C1 H7 114.616 C3 C4 C5 124.950
C3 C4 H9 118.344 C4 C3 H8 122.028
C4 C5 C6 123.182 C4 C5 H10 116.953
C5 C4 H9 116.706 C5 C6 H11 121.235
C5 C6 H12 121.736 C6 C5 H10 119.865
H11 C6 H12 117.028
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.306      
2 O -0.673      
3 C -0.211      
4 C 0.335      
5 C 0.040      
6 C -0.446      
7 H 0.083      
8 H 0.108      
9 H 0.104      
10 H 0.103      
11 H 0.120      
12 H 0.131      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.029 4.132 0.000 4.258
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.846 -3.185 0.000
y -3.185 -43.388 0.000
z 0.000 0.000 -38.340
Traceless
 xyz
x 8.018 -3.185 0.000
y -3.185 -7.795 0.000
z 0.000 0.000 -0.223
Polar
3z2-r2-0.446
x2-y210.542
xy-3.185
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.452 3.057 0.000
y 3.057 18.627 0.000
z 0.000 0.000 6.165


<r2> (average value of r2) Å2
<r2> 240.001
(<r2>)1/2 15.492