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All results from a given calculation for C8H8 (cyclooctatetraene)

using model chemistry: BLYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at BLYP/6-311G*
 hartrees
Energy at 0K-309.505285
Energy at 298.15K-309.512813
Nuclear repulsion energy321.165764
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 BLYP/6-311G*
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 3048 3040 0.00      
2 A1 1645 1641 0.00      
3 A1 1222 1219 0.00      
4 A1 854 852 0.00      
5 A1 751 749 0.00      
6 A1 170 170 0.00      
7 A2 3012 3005 0.00      
8 A2 1362 1358 0.00      
9 A2 959 957 0.00      
10 A2 917 915 0.00      
11 A2 223 223 0.00      
12 B1 3022 3014 0.00      
13 B1 1433 1430 0.00      
14 B1 1013 1011 0.00      
15 B1 930 928 0.00      
16 B1 645 644 0.00      
17 B1 259 259 0.00      
18 B2 3032 3025 54.22      
19 B2 1644 1640 0.79      
20 B2 1214 1211 0.55      
21 B2 656 654 93.87      
22 B2 284 284 2.11      
23 E 3040 3033 110.10      
23 E 3040 3033 110.10      
24 E 3016 3008 3.28      
24 E 3016 3008 3.28      
25 E 1626 1622 1.39      
25 E 1626 1622 1.39      
26 E 1401 1397 0.26      
26 E 1401 1397 0.26      
27 E 1234 1231 0.89      
27 E 1234 1231 0.89      
28 E 949 947 0.67      
28 E 949 947 0.67      
29 E 924 922 1.63      
29 E 924 922 1.63      
30 E 783 781 17.64      
30 E 783 781 17.64      
31 E 634 632 20.42      
31 E 634 632 20.42      
32 E 339 338 1.44      
32 E 339 338 1.44      

Unscaled Zero Point Vibrational Energy (zpe) 28094.4 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 28024.1 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 BLYP/6-311G*
ABC
0.08857 0.08857 0.04941

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G*

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.675 1.582 0.368
C2 -0.675 1.582 0.368
C3 0.675 -1.582 0.368
C4 -0.675 -1.582 0.368
C5 1.582 0.675 -0.368
C6 -1.582 0.675 -0.368
C7 1.582 -0.675 -0.368
C8 -1.582 -0.675 -0.368
H9 1.177 2.392 0.912
H10 -1.177 2.392 0.912
H11 1.177 -2.392 0.912
H12 -1.177 -2.392 0.912
H13 2.392 1.177 -0.912
H14 -2.392 1.177 -0.912
H15 2.392 -1.177 -0.912
H16 -2.392 -1.177 -0.912

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.34993.16343.43941.47882.54102.54103.27521.09742.09344.04194.41762.17953.34783.49264.3192
C21.34993.43943.16342.54101.47883.27522.54102.09341.09744.41764.04193.34782.17954.31923.4926
C33.16343.43941.34992.54103.27521.47882.54104.04194.41761.09742.09343.49264.31922.17953.3478
C43.43943.16341.34993.27522.54102.54101.47884.41764.04192.09341.09744.31923.49263.34782.1795
C51.47882.54102.54103.27523.16341.34993.43942.17953.49263.34784.31921.09744.04192.09344.4176
C62.54101.47883.27522.54103.16343.43941.34993.49262.17954.31923.34784.04191.09744.41762.0934
C72.54103.27521.47882.54101.34993.43943.16343.34784.31922.17953.49262.09344.41761.09744.0419
C83.27522.54102.54101.47883.43941.34993.16344.31923.34783.49262.17954.41762.09344.04191.0974
H91.09742.09344.04194.41762.17953.49263.34784.31922.35444.78375.33172.50554.18814.18815.3668
H102.09341.09744.41764.04193.49262.17954.31923.34782.35445.33174.78374.18812.50555.36684.1881
H114.04194.41761.09742.09343.34784.31922.17953.49264.78375.33172.35444.18815.36682.50554.1881
H124.41764.04192.09341.09744.31923.34783.49262.17955.33174.78372.35445.36684.18814.18812.5055
H132.17953.34783.49264.31921.09744.04192.09344.41762.50554.18814.18815.36684.78372.35445.3317
H143.34782.17954.31923.49264.04191.09744.41762.09344.18812.50555.36684.18814.78375.33172.3544
H153.49264.31922.17953.34782.09344.41761.09744.04194.18815.36682.50554.18812.35445.33174.7837
H164.31923.49263.34782.17954.41762.09344.04191.09745.36684.18814.18812.50555.33172.35444.7837

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 127.820 C1 C2 H10 117.238
C1 C5 C7 127.820 C1 C5 H13 114.759
C2 C1 C5 127.820 C2 C1 H9 117.238
C2 C6 C8 127.820 C2 C6 H14 114.759
C3 C4 C8 127.820 C3 C4 H12 117.238
C3 C7 C5 127.820 C3 C7 H15 114.759
C4 C3 C7 127.820 C4 C3 H11 117.238
C4 C8 C6 127.820 C4 C8 H16 114.759
C5 C1 H9 114.759 C5 C7 H15 117.238
C6 C2 H10 114.759 C6 C8 H16 117.238
C7 C3 H11 114.759 C7 C5 H13 117.238
C8 C4 H12 114.759 C8 C6 H14 117.238
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.177      
2 C -0.177      
3 C -0.177      
4 C -0.177      
5 C -0.177      
6 C -0.177      
7 C -0.177      
8 C -0.177      
9 H 0.177      
10 H 0.177      
11 H 0.177      
12 H 0.177      
13 H 0.177      
14 H 0.177      
15 H 0.177      
16 H 0.177      


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 -44.208 0.000 0.000
y 0.000 -44.208 0.000
z 0.000 0.000 -50.158
Traceless
 xyz
x 2.975 0.000 0.000
y 0.000 2.975 0.000
z 0.000 0.000 -5.950
Polar
3z2-r2-11.900
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 15.271 0.000 0.000
y 0.000 15.271 0.000
z 0.000 0.000 7.741


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