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All results from a given calculation for C5H6O (Pentadienal)

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-268.486134
Energy at 298.15K-268.491607
HF Energy-267.649066
Nuclear repulsion energy193.213613
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 CCD/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' 3276 3101 11.35      
2 A' 3217 3045 4.13      
3 A' 3196 3025 4.51      
4 A' 3186 3015 9.24      
5 A' 3167 2997 6.99      
6 A' 2973 2814 84.91      
7 A' 1852 1753 205.24      
8 A' 1772 1677 4.47      
9 A' 1703 1612 5.42      
10 A' 1494 1414 2.42      
11 A' 1455 1377 2.23      
12 A' 1360 1287 2.83      
13 A' 1352 1280 2.32      
14 A' 1299 1230 1.02      
15 A' 1225 1160 21.56      
16 A' 1152 1090 69.27      
17 A' 984 931 2.66      
18 A' 612 579 12.87      
19 A' 438 414 0.81      
20 A' 390 369 4.71      
21 A' 153 145 6.12      
22 A" 1044 988 40.13      
23 A" 1024 970 14.11      
24 A" 993 940 4.78      
25 A" 944 894 36.58      
26 A" 860 814 5.45      
27 A" 646 611 2.20      
28 A" 270 256 7.49      
29 A" 191 181 1.89      
30 A" 90 85 3.63      

Unscaled Zero Point Vibrational Energy (zpe) 21158.8 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 20026.8 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 CCD/6-31G*
ABC
0.95333 0.04452 0.04253

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.132 -1.579 0.000
O2 -1.116 -2.796 0.000
C3 0.082 -0.741 0.000
C4 0.000 0.602 0.000
C5 1.152 1.501 0.000
C6 1.039 2.838 0.000
H7 -2.095 -1.025 0.000
H8 1.038 -1.264 0.000
H9 -0.986 1.073 0.000
H10 2.139 1.038 0.000
H11 0.068 3.330 0.000
H12 1.912 3.486 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.21701.47502.45673.83454.92161.11102.19222.65594.18905.05305.9088
O21.21702.37833.57574.85866.03172.02382.64233.87095.02896.23866.9729
C31.47502.37831.34492.48443.70472.19521.08952.10512.71974.07054.6057
C42.45673.57571.34491.46182.46612.65202.13471.09332.18342.72893.4603
C53.83454.85862.48441.46181.34154.11382.76762.18101.09072.12572.1249
C64.92166.03173.70472.46611.34154.97424.10192.68672.10981.08881.0868
H71.11102.02382.19522.65204.11384.97423.14152.37264.70984.86186.0330
H82.19222.64231.08952.13472.76764.10193.14153.09172.55194.69494.8295
H92.65593.87092.10511.09332.18102.68672.37263.09173.12612.49073.7711
H104.18905.02892.71972.18341.09072.10984.70982.55193.12613.08942.4585
H115.05306.23864.07052.72892.12571.08884.86184.69492.49073.08941.8507
H125.90886.97294.60573.46032.12491.08686.03304.82953.77112.45851.8507

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.130 C1 C3 H8 116.682
O2 C1 C3 123.848 O2 C1 H7 120.693
C3 C1 H7 115.459 C3 C4 C5 124.495
C3 C4 H9 119.037 C4 C3 H8 122.188
C4 C5 C6 123.162 C4 C5 H10 116.865
C5 C4 H9 116.468 C5 C6 H11 121.669
C5 C6 H12 121.760 C6 C5 H10 119.973
H11 C6 H12 116.572
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability