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All results from a given calculation for C5H8 (2,3-Pentadiene)

using model chemistry: LSDA/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-193.115147
Energy at 298.15K-193.122164
Nuclear repulsion energy152.354759
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 LSDA/3-21G*
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 3086 3031 5.91      
2 A 3048 2993 3.47      
3 A 3035 2981 10.08      
4 A 2975 2921 3.93      
5 A 1509 1482 2.79      
6 A 1486 1460 11.84      
7 A 1433 1407 4.03      
8 A 1387 1362 7.66      
9 A 1167 1146 0.95      
10 A 1087 1067 0.75      
11 A 1054 1035 1.52      
12 A 891 875 33.48      
13 A 827 812 0.07      
14 A 537 528 2.19      
15 A 290 284 1.77      
16 A 186 182 0.02      
17 A 133 131 2.50      
18 A 3087 3031 11.35      
19 A 3047 2992 2.26      
20 A 3036 2981 10.13      
21 A 2974 2921 35.84      
22 A 2078 2041 10.18      
23 A 1490 1463 13.66      
24 A 1485 1458 12.51      
25 A 1386 1361 7.63      
26 A 1299 1275 11.22      
27 A 1092 1073 8.32      
28 A 1048 1029 0.25      
29 A 969 951 24.79      
30 A 707 695 30.60      
31 A 565 555 12.94      
32 A 223 219 0.61      
33 A 162 159 2.36      

Unscaled Zero Point Vibrational Energy (zpe) 24389.3 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 23950.3 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 LSDA/3-21G*
ABC
0.57064 0.07519 0.07268

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.417
C2 0.000 1.306 0.415
C3 0.000 -1.306 0.415
C4 -0.876 2.152 -0.461
C5 0.876 -2.152 -0.461
H6 0.680 1.845 1.092
H7 -0.680 -1.845 1.092
H8 -1.528 2.806 0.149
H9 -0.267 2.808 -1.111
H10 -1.514 1.519 -1.100
H11 1.528 -2.806 0.149
H12 0.267 -2.808 -1.111
H13 1.514 -1.519 -1.100

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.30621.30622.48382.48382.07962.07963.20583.20802.62733.20583.20802.6273
C21.30622.61251.50013.67331.10133.29472.15702.15762.15244.39464.39623.5456
C31.30622.61253.67331.50013.29471.10134.39464.39623.54562.15702.15762.1524
C42.48381.50013.67334.64682.22064.29291.10651.10651.10225.54335.13124.4273
C52.48383.67331.50014.64684.29292.22065.54335.13124.42731.10651.10651.1022
H62.07961.10133.29472.22064.29293.93372.58592.58463.11924.82085.16534.1016
H72.07963.29471.10134.29292.22063.93374.82085.16534.10162.58592.58463.1192
H83.20582.15704.39461.10655.54332.58594.82081.78261.79316.38926.02695.4333
H93.20802.15764.39621.10655.13122.58465.16531.78261.79346.02695.64134.6798
H102.62732.15243.54561.10224.42733.11924.10161.79311.79345.43334.67984.2904
H113.20584.39462.15705.54331.10654.82082.58596.38926.02695.43331.78261.7931
H123.20804.39622.15765.13121.10655.16532.58466.02695.64134.67981.78261.7934
H132.62733.54562.15244.42731.10224.10163.11925.43334.67984.29041.79311.7934

picture of 2,3-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.377 C1 C2 H6 119.247
C1 C3 C5 124.377 C1 C3 H7 119.247
C2 C1 C3 179.810 C2 C4 H8 110.781
C2 C4 H9 110.831 C2 C4 H10 110.678
C3 C5 H11 110.781 C3 C5 H12 110.831
C3 C5 H13 110.678 C4 C2 H6 116.377
C5 C3 H7 116.377 H8 C4 H9 107.316
H8 C4 H10 108.551 H9 C4 H10 108.577
H11 C5 H12 107.316 H11 C5 H13 108.551
H12 C5 H13 108.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.233      
2 C -0.358      
3 C -0.358      
4 C -0.670      
5 C -0.670      
6 H 0.224      
7 H 0.224      
8 H 0.229      
9 H 0.228      
10 H 0.230      
11 H 0.229      
12 H 0.228      
13 H 0.230      


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 -0.254 0.254
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.773 -0.351 0.000
y -0.351 -26.908 0.000
z 0.000 0.000 -32.006
Traceless
 xyz
x -2.316 -0.351 0.000
y -0.351 4.981 0.000
z 0.000 0.000 -2.665
Polar
3z2-r2-5.330
x2-y2-4.865
xy-0.351
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.412 -1.011 0.000
y -1.011 12.878 0.000
z 0.000 0.000 5.304


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000