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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-267.539816
Energy at 298.15K-267.545731
HF Energy-267.539816
Nuclear repulsion energy194.516623
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/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' 3423 3090 16.40 113.41 0.58 0.74
2 A' 3373 3045 6.76 69.03 0.32 0.48
3 A' 3348 3023 8.50 68.44 0.25 0.40
4 A' 3330 3007 11.39 68.46 0.11 0.19
5 A' 3315 2994 7.57 47.65 0.41 0.59
6 A' 3197 2887 79.68 78.81 0.31 0.47
7 A' 1903 1718 489.69 961.35 0.33 0.49
8 A' 1881 1698 29.23 332.64 0.28 0.44
9 A' 1809 1634 1.35 0.47 0.22 0.36
10 A' 1609 1453 7.40 55.41 0.38 0.55
11 A' 1552 1401 6.30 1.18 0.66 0.80
12 A' 1471 1329 1.49 1.49 0.46 0.63
13 A' 1457 1316 4.56 113.83 0.33 0.50
14 A' 1413 1276 0.54 4.62 0.62 0.76
15 A' 1313 1186 43.88 165.98 0.43 0.60
16 A' 1219 1100 100.71 13.40 0.49 0.66
17 A' 1057 954 5.85 8.19 0.43 0.60
18 A' 658 594 23.94 0.20 0.67 0.80
19 A' 472 426 0.96 6.21 0.23 0.38
20 A' 422 381 8.06 5.92 0.46 0.63
21 A' 169 152 8.88 0.88 0.62 0.77
22 A" 1170 1057 27.96 3.77 0.75 0.86
23 A" 1159 1047 28.85 47.96 0.75 0.86
24 A" 1136 1026 91.48 3.63 0.75 0.86
25 A" 1109 1001 2.39 0.21 0.75 0.86
26 A" 1003 906 15.38 21.29 0.75 0.86
27 A" 725 654 4.01 7.58 0.75 0.86
28 A" 298 269 12.88 0.89 0.75 0.86
29 A" 221 200 2.56 0.02 0.75 0.86
30 A" 105 95 6.24 1.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 22658.3 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 20458.2 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 HF/6-31G
ABC
0.98007 0.04495 0.04298

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.141 -1.557 0.000
O2 -1.130 -2.775 0.000
C3 0.064 -0.733 0.000
C4 0.000 0.599 0.000
C5 1.158 1.486 0.000
C6 1.069 2.811 0.000
H7 -2.089 -1.025 0.000
H8 1.002 -1.255 0.000
H9 -0.966 1.078 0.000
H10 2.124 1.014 0.000
H11 0.121 3.317 0.000
H12 1.942 3.434 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.21811.45972.43943.81404.89551.08662.16452.64114.15605.03475.8666
O21.21812.36513.55814.83626.00321.99572.61803.85674.99416.21906.9272
C31.45972.36511.33352.47413.68392.17201.07392.08332.70134.05024.5708
C42.43943.55811.33351.45882.45692.64572.10751.07822.16452.72053.4364
C53.81404.83622.47411.45881.32834.10452.74522.16291.07532.10442.1000
C64.89556.00323.68392.45691.32834.96864.06662.67292.08431.07451.0721
H71.08661.99572.17202.64574.10454.96863.09922.38424.68034.87196.0106
H82.16452.61801.07392.10752.74524.06663.09923.05232.53104.65594.7824
H92.64113.85672.08331.07822.16292.67292.38423.05233.09092.48863.7422
H104.15604.99412.70132.16451.07532.08434.68032.53103.09093.05252.4275
H115.03476.21904.05022.72052.10441.07454.87194.65592.48863.05251.8242
H125.86666.92724.57083.43642.10001.07216.01064.78243.74222.42751.8242

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.634 C1 C3 H8 116.543
O2 C1 C3 123.816 O2 C1 H7 119.870
C3 C1 H7 116.314 C3 C4 C5 124.698
C3 C4 H9 119.126 C4 C3 H8 121.823
C4 C5 C6 123.589 C4 C5 H10 116.517
C5 C4 H9 116.176 C5 C6 H11 121.927
C5 C6 H12 121.693 C6 C5 H10 119.894
H11 C6 H12 116.380
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.304      
2 O -0.534      
3 C -0.266      
4 C -0.145      
5 C -0.146      
6 C -0.357      
7 H 0.164      
8 H 0.221      
9 H 0.200      
10 H 0.200      
11 H 0.176      
12 H 0.183      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.839 4.648 0.000 4.723
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.664 -4.104 0.000
y -4.104 -46.121 0.000
z 0.000 0.000 -38.450
Traceless
 xyz
x 9.621 -4.104 0.000
y -4.104 -10.564 0.000
z 0.000 0.000 0.943
Polar
3z2-r21.886
x2-y213.456
xy-4.104
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.967 2.242 0.000
y 2.242 16.884 0.000
z 0.000 0.000 2.650


<r2> (average value of r2) Å2
<r2> 241.755
(<r2>)1/2 15.548