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All results from a given calculation for C8H8 (cyclooctatetraene)

using model chemistry: B97D3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B97D3/6-31+G**
 hartrees
Energy at 0K-309.401408
Energy at 298.15K-309.408919
HF Energy-309.401408
Nuclear repulsion energy322.331064
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 B97D3/6-31+G**
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 3098 3045 0.00      
2 A1 1677 1648 0.00      
3 A1 1215 1194 0.00      
4 A1 873 858 0.00      
5 A1 755 742 0.00      
6 A1 174 171 0.00      
7 A2 3065 3012 0.00      
8 A2 1352 1328 0.00      
9 A2 967 951 0.00      
10 A2 913 898 0.00      
11 A2 217 213 0.00      
12 B1 3074 3021 0.00      
13 B1 1441 1417 0.00      
14 B1 1027 1009 0.00      
15 B1 939 923 0.00      
16 B1 643 632 0.00      
17 B1 248 244 0.00      
18 B2 3084 3031 45.80      
19 B2 1659 1630 0.35      
20 B2 1213 1192 1.62      
21 B2 660 649 102.35      
22 B2 284 279 2.73      
23 E 3091 3038 93.93      
23 E 3091 3038 93.93      
24 E 3068 3015 1.81      
24 E 3068 3015 1.81      
25 E 1652 1623 3.79      
25 E 1652 1623 3.79      
26 E 1400 1376 0.01      
26 E 1400 1376 0.01      
27 E 1228 1207 1.03      
27 E 1228 1207 1.03      
28 E 959 943 0.64      
28 E 959 943 0.64      
29 E 941 925 1.91      
29 E 941 925 1.91      
30 E 790 777 23.68      
30 E 790 777 23.68      
31 E 628 617 22.61      
31 E 628 617 22.61      
32 E 330 324 2.34      
32 E 330 324 2.34      

Unscaled Zero Point Vibrational Energy (zpe) 28375.7 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 27887.7 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 B97D3/6-31+G**
ABC
0.08924 0.08924 0.05032

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.676 1.565 0.384
C2 -0.676 1.565 0.384
C3 0.676 -1.565 0.384
C4 -0.676 -1.565 0.384
C5 1.565 0.676 -0.384
C6 1.565 -0.676 -0.384
C7 -1.565 0.676 -0.384
C8 -1.565 -0.676 -0.384
H9 1.181 2.358 0.946
H10 -1.181 2.358 0.946
H11 1.181 -2.358 0.946
H12 -1.181 -2.358 0.946
H13 2.358 1.181 -0.946
H14 2.358 -1.181 -0.946
H15 -2.358 1.181 -0.946
H16 -2.358 -1.181 -0.946

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.35153.13003.40931.47392.53032.53033.26071.09502.09543.99464.37592.17863.48403.33454.3024
C21.35153.40933.13002.53033.26071.47392.53032.09541.09504.37593.99463.33454.30242.17863.4840
C33.13003.40931.35152.53031.47393.26072.53033.99464.37591.09502.09543.48402.17864.30243.3345
C43.40933.13001.35153.26072.53032.53031.47394.37593.99462.09541.09504.30243.33453.48402.1786
C51.47392.53032.53033.26071.35153.13003.40932.17863.48403.33454.30241.09502.09543.99464.3759
C62.53033.26071.47392.53031.35153.40933.13003.33454.30242.17863.48402.09541.09504.37593.9946
C72.53031.47393.26072.53033.13003.40931.35153.48402.17864.30243.33453.99464.37591.09502.0954
C83.26072.53032.53031.47393.40933.13001.35154.30243.33453.48402.17864.37593.99462.09541.0950
H91.09502.09543.99464.37592.17863.33453.48404.30242.36164.71505.27342.52024.18174.18175.3499
H102.09541.09504.37593.99463.48404.30242.17863.33452.36165.27344.71504.18175.34992.52024.1817
H113.99464.37591.09502.09543.33452.17864.30243.48404.71505.27342.36164.18172.52025.34994.1817
H124.37593.99462.09541.09504.30243.48403.33452.17865.27344.71502.36165.34994.18174.18172.5202
H132.17863.33453.48404.30241.09502.09543.99464.37592.52024.18174.18175.34992.36164.71505.2734
H143.48404.30242.17863.33452.09541.09504.37593.99464.18175.34992.52024.18172.36165.27344.7150
H153.33452.17864.30243.48403.99464.37591.09502.09544.18172.52025.34994.18174.71505.27342.3616
H164.30243.48403.33452.17864.37593.99462.09541.09505.34994.18174.18172.52025.27344.71502.3616

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 46.707 C1 C2 H10 118.679
C1 C5 C7 53.339 C1 C5 H13 114.589
C2 C1 C5 126.661 C2 C1 H9 118.679
C2 C6 C8 46.707 C2 C6 H14 158.847
C3 C4 C8 126.661 C3 C4 H12 118.679
C3 C7 C5 46.707 C3 C7 H15 158.847
C4 C3 C7 46.707 C4 C3 H11 118.679
C4 C8 C6 53.339 C4 C8 H16 114.589
C5 C1 H9 114.589 C5 C7 H15 133.247
C6 C2 H10 158.847 C6 C8 H16 133.247
C7 C3 H11 158.847 C7 C5 H13 133.247
C8 C4 H12 114.589 C8 C6 H14 133.247
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.135      
2 C -0.135      
3 C -0.135      
4 C -0.135      
5 C -0.135      
6 C -0.135      
7 C -0.135      
8 C -0.135      
9 H 0.135      
10 H 0.135      
11 H 0.135      
12 H 0.135      
13 H 0.135      
14 H 0.135      
15 H 0.135      
16 H 0.135      


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 -44.392 0.000 0.000
y 0.000 -44.392 0.000
z 0.000 0.000 -50.327
Traceless
 xyz
x 2.967 0.000 0.000
y 0.000 2.967 0.000
z 0.000 0.000 -5.935
Polar
3z2-r2-11.870
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 16.364 0.000 0.000
y 0.000 16.364 0.000
z 0.000 0.000 10.060


<r2> (average value of r2) Å2
<r2> 238.310
(<r2>)1/2 15.437