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All results from a given calculation for C5H8 (1,4-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 C2 1A
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-194.519565
Energy at 298.15K-194.527258
HF Energy-193.948132
Nuclear repulsion energy155.798544
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
4/u)
Dep P Dep U
1 A 3354 3098 16.79      
2 A 3278 3028 2.51      
3 A 3264 3015 6.95      
4 A 3146 2906 22.35      
5 A 1826 1686 0.47      
6 A 1575 1455 6.06      
7 A 1533 1416 0.01      
8 A 1391 1285 0.01      
9 A 1333 1231 0.02      
10 A 1148 1060 2.96      
11 A 1083 1000 11.55      
12 A 1005 928 43.75      
13 A 965 891 3.18      
14 A 713 659 8.66      
15 A 390 360 0.47      
16 A 312 288 0.14      
17 A 92 85 0.01      
18 A 3354 3098 20.68      
19 A 3276 3026 8.53      
20 A 3264 3015 26.35      
21 A 3190 2946 15.80      
22 A 1816 1678 12.94      
23 A 1541 1423 4.29      
24 A 1408 1301 0.68      
25 A 1378 1273 5.00      
26 A 1240 1145 2.73      
27 A 1086 1004 15.57      
28 A 1024 946 4.09      
29 A 1004 927 39.08      
30 A 947 875 6.09      
31 A 643 594 10.76      
32 A 472 436 2.46      
33 A 102 95 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 26075.1 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 24085.6 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
0.66916 0.07892 0.07828

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.666
C2 0.000 1.245 -0.178
C3 0.000 -1.245 -0.178
C4 0.959 2.160 -0.177
C5 -0.959 -2.160 -0.177
H6 -0.878 -0.007 1.315
H7 0.878 0.007 1.315
H8 -0.854 1.367 -0.835
H9 0.854 -1.367 -0.835
H10 0.912 3.034 -0.810
H11 -0.912 -3.034 -0.810
H12 1.829 2.071 0.461
H13 -1.829 -2.071 0.461

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.50411.50412.50872.50871.09221.09222.20242.20243.49463.49462.77072.7707
C21.50412.49011.32523.53712.13762.12901.08432.82562.10484.42032.10593.8407
C31.50412.49013.53711.32522.12902.13762.82561.08434.42032.10483.84072.1059
C42.50871.32523.53714.72583.20892.61982.08533.58901.08035.55621.08185.1067
C52.50873.53711.32524.72582.61983.20893.58902.08535.55621.08035.10671.0818
H61.09222.13762.12903.20892.61981.75662.55183.07764.11923.69793.51842.4276
H71.09222.12902.13762.61983.20891.75663.07762.55183.69794.11922.42763.5184
H82.20241.08432.82562.08533.58902.55183.07763.22392.42844.40133.06133.8014
H92.20242.82561.08433.58902.08533.07762.55183.22394.40132.42843.80143.0613
H103.49462.10484.42031.08035.55624.11923.69792.42844.40136.33581.83855.9319
H113.49464.42032.10485.55621.08033.69794.11924.40132.42846.33585.93191.8385
H122.77072.10593.84071.08185.10673.51842.42763.06133.80141.83855.93195.5263
H132.77073.84072.10595.10671.08182.42763.51843.80143.06135.93191.83855.5263

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 124.796 C1 C2 H8 115.659
C1 C3 C5 124.796 C1 C3 H9 115.659
C2 C1 C3 111.740 C2 C1 H6 109.822
C2 C1 H7 109.140 C2 C4 H10 121.756
C2 C4 H12 121.747 C3 C1 H6 109.140
C3 C1 H7 109.822 C3 C5 H11 121.756
C3 C5 H13 121.747 C4 C2 H8 119.538
C5 C3 H9 119.538 H6 C1 H7 107.063
H10 C4 H12 116.497 H11 C5 H13 116.497
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at CID/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.387      
2 C -0.120      
3 C -0.120      
4 C -0.400      
5 C -0.400      
6 H 0.179      
7 H 0.179      
8 H 0.186      
9 H 0.186      
10 H 0.176      
11 H 0.176      
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> 157.281
(<r2>)1/2 12.541