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

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-32.956226
Energy at 298.15K-32.963729
Nuclear repulsion energy83.260502
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 B3LYP/CEP-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 3235 3132 45.09      
2 A 3154 3055 7.51      
3 A 3134 3035 7.56      
4 A 3023 2928 41.27      
5 A 1695 1642 0.35      
6 A 1490 1443 15.17      
7 A 1453 1407 0.02      
8 A 1320 1278 0.01      
9 A 1262 1222 0.13      
10 A 1094 1059 4.02      
11 A 1037 1004 20.52      
12 A 976 945 88.71      
13 A 904 875 5.62      
14 A 677 655 14.81      
15 A 371 359 0.47      
16 A 296 287 0.35      
17 A 87 84 0.02      
18 A 3234 3132 54.90      
19 A 3153 3053 20.43      
20 A 3135 3036 42.41      
21 A 3074 2977 28.12      
22 A 1685 1632 27.30      
23 A 1455 1409 7.78      
24 A 1332 1290 1.54      
25 A 1315 1273 2.83      
26 A 1178 1140 2.56      
27 A 1040 1007 26.50      
28 A 976 945 91.85      
29 A 968 938 0.96      
30 A 896 868 13.33      
31 A 621 601 20.47      
32 A 453 439 3.03      
33 A 97 94 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24909.1 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 24121.9 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 B3LYP/CEP-31G
ABC
0.66809 0.07470 0.07417

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.649
C2 0.000 1.274 -0.203
C3 0.000 -1.274 -0.203
C4 0.977 2.231 -0.148
C5 -0.977 -2.231 -0.148
H6 -0.890 -0.011 1.306
H7 0.890 0.011 1.306
H8 -0.841 1.393 -0.898
H9 0.841 -1.393 -0.898
H10 0.935 3.126 -0.779
H11 -0.935 -3.126 -0.779
H12 1.834 2.140 0.528
H13 -1.834 -2.140 0.528

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.53281.53282.56242.56241.10621.10622.24542.24543.56163.56162.82122.8212
C21.53282.54791.36853.63862.17292.15961.09732.88162.15304.53482.15633.9439
C31.53282.54793.63861.36852.15962.17292.88161.09734.53482.15303.94392.1563
C42.56241.36853.63864.87033.25992.65462.13743.70301.09615.72241.09575.2406
C52.56243.63861.36854.87032.65463.25993.70302.13745.72241.09615.24061.0957
H61.10622.17292.15963.25992.65461.78032.61393.12464.18573.74843.55762.4553
H71.10622.15962.17292.65463.25991.78033.12462.61393.74844.18572.45533.5576
H82.24541.09732.88162.13743.70302.61393.12463.25462.48394.52173.12223.9375
H92.24542.88161.09733.70302.13743.12462.61393.25464.52172.48393.93753.1222
H103.56162.15304.53481.09615.72244.18573.74842.48394.52176.52551.86816.0916
H113.56164.53482.15305.72241.09613.74844.18574.52172.48396.52556.09161.8681
H122.82122.15633.94391.09575.24063.55762.45533.12223.93751.86816.09165.6373
H132.82123.94392.15635.24061.09572.45533.55763.93753.12226.09161.86815.6373

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 123.962 C1 C2 H8 116.260
C1 C3 C5 123.962 C1 C3 H9 116.260
C2 C1 C3 112.433 C2 C1 H6 109.794
C2 C1 H7 108.762 C2 C4 H10 121.355
C2 C4 H12 121.715 C3 C1 H6 108.762
C3 C1 H7 109.794 C3 C5 H11 121.355
C3 C5 H13 121.715 C4 C2 H8 119.774
C5 C3 H9 119.774 H6 C1 H7 107.157
H10 C4 H12 116.929 H11 C5 H13 116.929
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.493      
2 C 0.021      
3 C 0.021      
4 C -0.584      
5 C -0.584      
6 H 0.155      
7 H 0.155      
8 H 0.260      
9 H 0.260      
10 H 0.172      
11 H 0.172      
12 H 0.222      
13 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.090 0.090
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x 1.051 0.988 0.000
y 0.988 -0.400 0.000
z 0.000 0.000 -0.652
Traceless
 xyz
x 1.577 0.988 0.000
y 0.988 -0.600 0.000
z 0.000 0.000 -0.977
Polar
3z2-r2-1.955
x2-y21.451
xy0.988
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.004 3.507 0.000
y 3.507 10.568 0.000
z 0.000 0.000 5.409


<r2> (average value of r2) Å2
<r2> 133.128
(<r2>)1/2 11.538