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All results from a given calculation for C8H8 (cyclooctatetraene)

using model chemistry: wB97X-D/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-309.578643
Energy at 298.15K-309.586548
HF Energy-309.578643
Nuclear repulsion energy325.629388
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 wB97X-D/cc-pVTZ
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 3178 3038 0.00      
2 A1 1761 1684 0.00      
3 A1 1249 1194 0.00      
4 A1 902 862 0.00      
5 A1 775 741 0.00      
6 A1 182 174 0.00      
7 A2 3143 3005 0.00      
8 A2 1393 1332 0.00      
9 A2 1027 982 0.00      
10 A2 949 907 0.00      
11 A2 239 229 0.00      
12 B1 3152 3014 0.00      
13 B1 1485 1419 0.00      
14 B1 1057 1010 0.00      
15 B1 998 954 0.00      
16 B1 688 658 0.00      
17 B1 262 250 0.00      
18 B2 3165 3025 29.31      
19 B2 1731 1655 1.10      
20 B2 1250 1195 1.56      
21 B2 680 650 90.61      
22 B2 296 283 1.81      
23 E 3172 3032 52.89      
23 E 3172 3032 52.89      
24 E 3147 3008 1.32      
24 E 3147 3008 1.32      
25 E 1737 1661 2.47      
25 E 1737 1661 2.47      
26 E 1441 1378 0.25      
26 E 1441 1378 0.25      
27 E 1264 1209 1.28      
27 E 1264 1209 1.28      
28 E 1017 972 0.51      
28 E 1017 972 0.51      
29 E 972 929 1.25      
29 E 972 929 1.25      
30 E 821 785 21.22      
30 E 821 785 21.22      
31 E 650 622 21.51      
31 E 650 622 21.51      
32 E 371 355 1.56      
32 E 371 355 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 29373.0 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 28080.6 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 wB97X-D/cc-pVTZ
ABC
0.09100 0.09100 0.05162

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.664 1.542 0.398
C2 -0.664 1.542 0.398
C3 0.664 -1.542 0.398
C4 -0.664 -1.542 0.398
C5 1.542 0.664 -0.398
C6 1.542 -0.664 -0.398
C7 -1.542 0.664 -0.398
C8 -1.542 -0.664 -0.398
H9 1.184 2.287 0.993
H10 -1.184 2.287 0.993
H11 1.184 -2.287 0.993
H12 -1.184 -2.287 0.993
H13 2.287 1.184 -0.993
H14 2.287 -1.184 -0.993
H15 -2.287 1.184 -0.993
H16 -2.287 -1.184 -0.993

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.32743.08363.35721.47462.50362.50363.21891.08652.07963.90954.29282.16703.46413.28134.2510
C21.32743.35723.08362.50363.21891.47462.50362.07961.08654.29283.90953.28134.25102.16703.4641
C33.08363.35721.32742.50361.47463.21892.50363.90954.29281.08652.07963.46412.16704.25103.2813
C43.35723.08361.32743.21892.50362.50361.47464.29283.90952.07961.08654.25103.28133.46412.1670
C51.47462.50362.50363.21891.32743.08363.35722.16703.46413.28134.25101.08652.07963.90954.2928
C62.50363.21891.47462.50361.32743.35723.08363.28134.25102.16703.46412.07961.08654.29283.9095
C72.50361.47463.21892.50363.08363.35721.32743.46412.16704.25103.28133.90954.29281.08652.0796
C83.21892.50362.50361.47463.35723.08361.32744.25103.28133.46412.16704.29283.90952.07961.0865
H91.08652.07963.90954.29282.16703.28133.46414.25102.36864.57375.15062.52484.14824.14825.2954
H102.07961.08654.29283.90953.46414.25102.16703.28132.36865.15064.57374.14825.29542.52484.1482
H113.90954.29281.08652.07963.28132.16704.25103.46414.57375.15062.36864.14822.52485.29544.1482
H124.29283.90952.07961.08654.25103.46413.28132.16705.15064.57372.36865.29544.14824.14822.5248
H132.16703.28133.46414.25101.08652.07963.90954.29282.52484.14824.14825.29542.36864.57375.1506
H143.46414.25102.16703.28132.07961.08654.29283.90954.14825.29542.52484.14822.36865.15064.5737
H153.28132.16704.25103.46413.90954.29281.08652.07964.14822.52485.29544.14824.57375.15062.3686
H164.25103.46413.28132.16704.29283.90952.07961.08655.29544.14824.14822.52485.15064.57372.3686

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 46.749 C1 C2 H10 118.628
C1 C5 C7 53.453 C1 C5 H13 114.740
C2 C1 C5 126.547 C2 C1 H9 118.628
C2 C6 C8 46.749 C2 C6 H14 158.987
C3 C4 C8 126.547 C3 C4 H12 118.628
C3 C7 C5 46.749 C3 C7 H15 158.987
C4 C3 C7 46.749 C4 C3 H11 118.628
C4 C8 C6 53.453 C4 C8 H16 114.740
C5 C1 H9 114.740 C5 C7 H15 133.292
C6 C2 H10 158.987 C6 C8 H16 133.292
C7 C3 H11 158.987 C7 C5 H13 133.292
C8 C4 H12 114.740 C8 C6 H14 133.292
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.121      
2 C -0.121      
3 C -0.121      
4 C -0.121      
5 C -0.121      
6 C -0.121      
7 C -0.121      
8 C -0.121      
9 H 0.121      
10 H 0.121      
11 H 0.121      
12 H 0.121      
13 H 0.121      
14 H 0.121      
15 H 0.121      
16 H 0.121      


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 -43.810 0.000 0.000
y 0.000 -43.810 0.000
z 0.000 0.000 -49.038
Traceless
 xyz
x 2.614 0.000 0.000
y 0.000 2.614 0.000
z 0.000 0.000 -5.228
Polar
3z2-r2-10.455
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 14.771 0.000 0.000
y 0.000 14.771 0.000
z 0.000 0.000 8.543


<r2> (average value of r2) Å2
<r2> 233.156
(<r2>)1/2 15.269