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All results from a given calculation for C5H8 (1,4-Pentadiene)

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 C2 1A
Energy calculated at CCD/6-31G*
 hartrees
Energy at 0K-194.631197
Energy at 298.15K-194.638730
HF Energy-193.946715
Nuclear repulsion energy154.909292
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 3265 3090 16.94      
2 A 3187 3016 1.91      
3 A 3174 3004 8.06      
4 A 3057 2894 21.04      
5 A 1759 1665 0.40      
6 A 1535 1453 6.05      
7 A 1490 1410 0.04      
8 A 1350 1278 0.01      
9 A 1296 1226 0.04      
10 A 1115 1055 1.67      
11 A 1030 975 14.02      
12 A 942 892 32.78      
13 A 937 887 7.17      
14 A 685 649 8.03      
15 A 379 359 0.45      
16 A 303 287 0.16      
17 A 87 83 0.01      
18 A 3265 3090 20.74      
19 A 3186 3016 8.60      
20 A 3174 3004 26.02      
21 A 3102 2936 15.87      
22 A 1751 1657 8.36      
23 A 1497 1417 3.40      
24 A 1364 1291 0.17      
25 A 1339 1267 3.93      
26 A 1206 1141 2.25      
27 A 1031 976 16.51      
28 A 998 945 2.93      
29 A 941 891 33.57      
30 A 921 871 6.17      
31 A 614 581 10.15      
32 A 459 435 2.12      
33 A 96 91 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25267.5 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 23915.7 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
0.66225 0.07810 0.07749

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.667
C2 0.000 1.249 -0.180
C3 0.000 -1.249 -0.180
C4 0.969 2.170 -0.175
C5 -0.969 -2.170 -0.175
H6 -0.884 -0.008 1.321
H7 0.884 0.008 1.321
H8 -0.858 1.372 -0.844
H9 0.858 -1.372 -0.844
H10 0.925 3.051 -0.812
H11 -0.925 -3.051 -0.812
H12 1.842 2.079 0.469
H13 -1.842 -2.079 0.469

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.50941.50942.52092.52091.09991.09992.21412.21413.51413.51412.78432.7843
C21.50942.49881.33613.55372.14882.13911.09202.83742.12134.44372.12173.8587
C31.50942.49883.55371.33612.13912.14882.83741.09204.44372.12133.85872.1217
C42.52091.33613.55374.75223.22742.63032.10233.60631.08765.58971.08925.1345
C52.52093.55371.33614.75222.63033.22743.60632.10235.58971.08765.13451.0892
H61.09992.14882.13913.22742.63031.76812.56813.09584.14503.71583.53722.4351
H71.09992.13912.14882.63033.22741.76813.09582.56813.71584.14502.43513.5372
H82.21411.09202.83742.10233.60632.56813.09583.23712.44934.42373.08443.8212
H92.21412.83741.09203.60632.10233.09582.56813.23714.42372.44933.82123.0844
H103.51412.12134.44371.08765.58974.14503.71582.44934.42376.37591.85085.9673
H113.51414.44372.12135.58971.08763.71584.14504.42372.44936.37595.96731.8508
H122.78432.12173.85871.08925.13453.53722.43513.08443.82121.85085.96735.5545
H132.78433.85872.12175.13451.08922.43513.53723.82123.08445.96731.85085.5545

picture of 1,4-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.626 C1 C2 H8 115.743
C1 C3 C5 124.626 C1 C3 H9 115.743
C2 C1 C3 111.740 C2 C1 H6 109.886
C2 C1 H7 109.120 C2 C4 H10 121.809
C2 C4 H12 121.717 C3 C1 H6 109.120
C3 C1 H7 109.886 C3 C5 H11 121.809
C3 C5 H13 121.717 C4 C2 H8 119.624
C5 C3 H9 119.624 H6 C1 H7 106.973
H10 C4 H12 116.474 H11 C5 H13 116.474
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at CCD/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.386      
2 C -0.121      
3 C -0.121      
4 C -0.399      
5 C -0.399      
6 H 0.179      
7 H 0.179      
8 H 0.187      
9 H 0.187      
10 H 0.177      
11 H 0.177      
12 H 0.171      
13 H 0.171      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 158.881
(<r2>)1/2 12.605