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All results from a given calculation for C8H8 (cyclooctatetraene)

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-309.375493
Energy at 298.15K-309.382986
HF Energy-309.375493
Nuclear repulsion energy 
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 B97D3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3092 3031 0.00      
2 A1 1692 1659 0.00      
3 A1 1227 1203 0.00      
4 A1 876 859 0.00      
5 A1 764 749 0.00      
6 A1 172 169 0.00      
7 A2 3056 2997 0.00      
8 A2 1367 1340 0.00      
9 A2 966 947 0.00      
10 A2 919 901 0.00      
11 A2 216 212 0.00      
12 B1 3066 3006 0.00      
13 B1 1457 1428 0.00      
14 B1 1034 1013 0.00      
15 B1 938 919 0.00      
16 B1 647 634 0.00      
17 B1 249 244 0.00      
18 B2 3077 3016 58.53      
19 B2 1679 1646 0.36      
20 B2 1225 1201 0.51      
21 B2 663 650 75.27      
22 B2 285 279 1.68      
23 E 3084 3024 112.25      
23 E 3084 3024 112.25      
24 E 3060 3000 2.55      
24 E 3060 3000 2.55      
25 E 1668 1635 2.07      
25 E 1668 1635 2.07      
26 E 1417 1390 0.00      
26 E 1417 1390 0.00      
27 E 1241 1216 0.95      
27 E 1241 1216 0.95      
28 E 958 939 0.29      
28 E 958 939 0.29      
29 E 947 928 1.81      
29 E 947 928 1.81      
30 E 794 779 16.05      
30 E 794 779 16.05      
31 E 631 619 18.52      
31 E 631 619 18.52      
32 E 331 324 1.25      
32 E 331 324 1.25      

Unscaled Zero Point Vibrational Energy (zpe) 28463.4 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 27905.5 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 B97D3/6-31G*
ABC
0.08929 0.08929 0.05023

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.675 1.567 0.380
C2 -0.675 1.567 0.380
C3 0.675 -1.567 0.380
C4 -0.675 -1.567 0.380
C5 1.567 0.675 -0.380
C6 1.567 -0.675 -0.380
C7 -1.567 0.675 -0.380
C8 -1.567 -0.675 -0.380
H9 1.180 2.362 0.940
H10 -1.180 2.362 0.940
H11 1.180 -2.362 0.940
H12 -1.180 -2.362 0.940
H13 2.362 1.180 -0.940
H14 2.362 -1.180 -0.940
H15 -2.362 1.180 -0.940
H16 -2.362 -1.180 -0.940

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.34943.13363.41181.47322.52962.52963.26001.09612.09444.00094.38092.17733.48383.33414.3026
C21.34943.41183.13362.52963.26001.47322.52962.09441.09614.38094.00093.33414.30262.17733.4838
C33.13363.41181.34942.52961.47323.26002.52964.00094.38091.09612.09443.48382.17734.30263.3341
C43.41183.13361.34943.26002.52962.52961.47324.38094.00092.09441.09614.30263.33413.48382.1773
C51.47322.52962.52963.26001.34943.13363.41182.17733.48383.33414.30261.09612.09444.00094.3809
C62.52963.26001.47322.52961.34943.41183.13363.33414.30262.17733.48382.09441.09614.38094.0009
C72.52961.47323.26002.52963.13363.41181.34943.48382.17734.30263.33414.00094.38091.09612.0944
C83.26002.52962.52961.47323.41183.13361.34944.30263.33413.48382.17734.38094.00092.09441.0961
H91.09612.09444.00094.38092.17733.33413.48384.30262.36044.72475.28152.51564.18104.18105.3509
H102.09441.09614.38094.00093.48384.30262.17733.33412.36045.28154.72474.18105.35092.51564.1810
H114.00094.38091.09612.09443.33412.17734.30263.48384.72475.28152.36044.18102.51565.35094.1810
H124.38094.00092.09441.09614.30263.48383.33412.17735.28154.72472.36045.35094.18104.18102.5156
H132.17733.33413.48384.30261.09612.09444.00094.38092.51564.18104.18105.35092.36044.72475.2815
H143.48384.30262.17733.33412.09441.09614.38094.00094.18105.35092.51564.18102.36045.28154.7247
H153.33412.17734.30263.48384.00094.38091.09612.09444.18102.51565.35094.18104.72475.28152.3604
H164.30263.48383.33412.17734.38094.00092.09441.09615.35094.18104.18102.51565.28154.72472.3604

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 46.696 C1 C2 H10 118.662
C1 C5 C7 53.286 C1 C5 H13 114.553
C2 C1 C5 126.714 C2 C1 H9 118.662
C2 C6 C8 46.696 C2 C6 H14 158.865
C3 C4 C8 126.714 C3 C4 H12 118.662
C3 C7 C5 46.696 C3 C7 H15 158.865
C4 C3 C7 46.696 C4 C3 H11 118.662
C4 C8 C6 53.286 C4 C8 H16 114.553
C5 C1 H9 114.553 C5 C7 H15 133.349
C6 C2 H10 158.865 C6 C8 H16 133.349
C7 C3 H11 158.865 C7 C5 H13 133.349
C8 C4 H12 114.553 C8 C6 H14 133.349
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.136      
2 C -0.136      
3 C -0.136      
4 C -0.136      
5 C -0.136      
6 C -0.136      
7 C -0.136      
8 C -0.136      
9 H 0.136      
10 H 0.136      
11 H 0.136      
12 H 0.136      
13 H 0.136      
14 H 0.136      
15 H 0.136      
16 H 0.136      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.009 0.000 0.000
y 0.000 -43.009 0.000
z 0.000 0.000 -48.264
Traceless
 xyz
x 2.628 0.000 0.000
y 0.000 2.628 0.000
z 0.000 0.000 -5.255
Polar
3z2-r2-10.511
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.274 0.000 0.000
y 0.000 14.274 0.000
z 0.000 0.000 6.858


<r2> (average value of r2) Å2
<r2> 237.440
(<r2>)1/2 15.409