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All results from a given calculation for C5H8 (1,2-Pentadiene)

using model chemistry: CID/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-194.506602
Energy at 298.15K-194.514134
HF Energy-193.933444
Nuclear repulsion energy157.124859
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 CID/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3343 3088 4.83      
2 A 3265 3016 3.79      
3 A 3262 3013 11.37      
4 A 3246 2999 31.31      
5 A 3242 2995 33.50      
6 A 3176 2934 20.78      
7 A 3165 2924 18.28      
8 A 3145 2905 38.02      
9 A 2171 2006 25.68      
10 A 1597 1475 4.17      
11 A 1591 1469 6.52      
12 A 1588 1467 0.45      
13 A 1574 1454 1.99      
14 A 1517 1401 4.44      
15 A 1463 1351 15.42      
16 A 1439 1329 0.18      
17 A 1363 1259 0.10      
18 A 1217 1124 0.75      
19 A 1178 1088 2.82      
20 A 1157 1069 3.70      
21 A 1089 1006 0.17      
22 A 1051 971 0.40      
23 A 963 890 14.07      
24 A 946 874 57.12      
25 A 901 832 1.38      
26 A 836 772 3.00      
27 A 669 618 2.80      
28 A 556 513 3.91      
29 A 383 354 2.54      
30 A 357 330 5.55      
31 A 271 250 0.01      
32 A 162 149 0.20      
33 A 99 91 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 25990.1 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 24007.1 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 CID/6-31G*
ABC
0.34243 0.10754 0.08584

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.375 0.501 -0.000
C2 1.495 -1.016 0.000
C3 -0.043 1.014 0.000
C4 -1.115 0.272 -0.001
C5 -2.190 -0.463 0.000
H6 1.890 0.914 -0.871
H7 1.890 0.914 0.871
H8 1.017 -1.445 0.879
H9 2.542 -1.316 0.000
H10 1.018 -1.445 -0.879
H11 -0.169 2.092 0.001
H12 -2.656 -0.782 0.923
H13 -2.658 -0.782 -0.921

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52181.50812.50033.69351.09261.09262.16572.15992.16572.21664.32934.3311
C21.52182.54692.91023.72652.15352.15341.08881.08901.08873.52494.25834.2603
C31.50812.54691.30352.60642.12302.12282.81903.48042.81951.08473.30163.3031
C42.50032.91021.30351.30293.19363.19412.87593.98662.87572.05052.08272.0829
C53.69353.72652.60641.30294.39394.39383.46794.80833.46843.25771.08121.0812
H61.09262.15352.12303.19364.39391.74153.06432.48132.51542.52775.17264.8540
H71.09262.15342.12283.19414.39381.74152.51542.48093.06412.52684.85205.1741
H82.16571.08882.81902.87593.46793.06432.51541.76411.75823.83253.73274.1461
H92.15991.08903.48043.98664.80832.48132.48091.76411.76414.35475.30545.3076
H102.16571.08872.81952.87573.46842.51543.06411.75821.76413.83354.14503.7354
H112.21663.52491.08472.05053.25772.52772.52683.83254.35473.83353.90983.9115
H124.32934.25833.30162.08271.08125.17264.85203.73275.30544.14503.90981.8442
H134.33114.26033.30312.08291.08124.85405.17414.14615.30763.73543.91151.8442

picture of 1,2-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H8 111.033 C1 C2 H9 110.551
C1 C2 H10 111.032 C1 C3 C4 125.412
C1 C3 H11 116.554 C2 C1 C3 114.406
C2 C1 H6 109.830 C2 C1 H7 109.817
C3 C1 H6 108.378 C3 C1 H7 108.359
C3 C4 C5 179.646 C4 C3 H11 118.034
C4 C5 H12 121.470 C4 C5 H13 121.489
H6 C1 H7 105.672 H8 C2 H9 108.204
H8 C2 H10 107.698 H9 C2 H10 108.204
H12 C5 H13 117.041
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability