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: wB97X-D/CEP-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 wB97X-D/CEP-31G*
 hartrees
Energy at 0K-47.791262
Energy at 298.15K-47.796800
HF Energy-47.791262
Nuclear repulsion energy100.999820
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 wB97X-D/CEP-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' 3266 3266 23.83      
2 A' 3209 3209 8.26      
3 A' 3197 3197 12.41      
4 A' 3176 3176 28.28      
5 A' 3169 3169 8.62      
6 A' 2950 2950 109.88      
7 A' 1813 1813 492.80      
8 A' 1748 1748 42.89      
9 A' 1683 1683 28.55      
10 A' 1460 1460 4.04      
11 A' 1421 1421 0.99      
12 A' 1332 1332 1.35      
13 A' 1325 1325 2.71      
14 A' 1267 1267 2.83      
15 A' 1200 1200 36.56      
16 A' 1139 1139 104.85      
17 A' 957 957 7.15      
18 A' 594 594 15.57      
19 A' 428 428 0.82      
20 A' 383 383 5.00      
21 A' 153 153 6.75      
22 A" 1069 1069 83.79      
23 A" 1031 1031 0.44      
24 A" 1012 1012 15.03      
25 A" 970 970 54.86      
26 A" 908 908 8.99      
27 A" 664 664 2.73      
28 A" 286 286 10.79      
29 A" 213 213 1.12      
30 A" 103 103 3.60      

Unscaled Zero Point Vibrational Energy (zpe) 21062.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 21062.5 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 wB97X-D/CEP-31G*
ABC
0.92646 0.04378 0.04180

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.109 -1.608 0.000
O2 -1.099 -2.833 0.000
C3 0.113 -0.758 0.000
C4 0.000 0.604 0.000
C5 1.146 1.532 0.000
C6 0.984 2.884 0.000
H7 -2.074 -1.044 0.000
H8 1.083 -1.262 0.000
H9 -0.999 1.057 0.000
H10 2.148 1.092 0.000
H11 -0.011 3.338 0.000
H12 1.842 3.561 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22431.48842.47453.86564.95601.11802.21922.66764.23075.06655.9520
O21.22432.40253.60794.90786.08452.03712.68863.89095.09396.26577.0374
C31.48842.40251.36682.51213.74512.20551.09352.12862.75044.09814.6522
C42.47453.60791.36681.47442.48362.64882.15791.09672.20262.73413.4837
C53.86564.90782.51211.47441.36214.12322.79482.19651.09392.14532.1452
C64.95606.08453.74512.48361.36214.97804.14772.69622.13651.09411.0926
H71.11802.03712.20552.64884.12324.97803.16482.36004.73144.84296.0446
H82.21922.68861.09352.15792.79484.14773.16483.11682.58424.72894.8825
H92.66763.89092.12861.09672.19652.69622.36003.11683.14662.48543.7866
H104.23075.09392.75042.20261.09392.13654.73142.58423.14663.11532.4873
H115.06656.26574.09812.73412.14531.09414.84294.72892.48543.11531.8668
H125.95207.03744.65223.48372.14521.09266.04464.88253.78662.48731.8668

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.085 C1 C3 H8 117.715
O2 C1 C3 124.377 O2 C1 H7 120.773
C3 C1 H7 114.850 C3 C4 C5 124.252
C3 C4 H9 119.151 C4 C3 H8 122.200
C4 C5 C6 122.173 C4 C5 H10 117.327
C5 C4 H9 116.597 C5 C6 H11 121.329
C5 C6 H12 121.442 C6 C5 H10 120.499
H11 C6 H12 117.229
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.444      
2 O -0.084      
3 C 0.008      
4 C -0.408      
5 C 0.044      
6 C -0.673      
7 H 0.167      
8 H 0.326      
9 H 0.315      
10 H 0.304      
11 H 0.222      
12 H 0.224      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.902 4.248 0.000 4.342
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.412 -3.620 0.000
y -3.620 -42.956 0.000
z 0.000 0.000 -38.042
Traceless
 xyz
x 9.087 -3.620 0.000
y -3.620 -8.229 0.000
z 0.000 0.000 -0.858
Polar
3z2-r2-1.716
x2-y211.545
xy-3.620
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.625 2.831 0.000
y 2.831 18.312 0.000
z 0.000 0.000 4.093


<r2> (average value of r2) Å2
<r2> 192.943
(<r2>)1/2 13.890