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All results from a given calculation for C8H8 (cyclooctatetraene)

using model chemistry: MP2/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at MP2/cc-pVDZ
 hartrees
Energy at 0K-308.591531
Energy at 298.15K-308.599137
HF Energy-307.544971
Nuclear repulsion energy322.618450
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 MP2/cc-pVDZ
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 3199 3047 0.00      
2 A1 1723 1641 0.00      
3 A1 1213 1156 0.00      
4 A1 909 865 0.00      
5 A1 764 727 0.00      
6 A1 184 176 0.00      
7 A2 3165 3015 0.00      
8 A2 1358 1293 0.00      
9 A2 972 926 0.00      
10 A2 914 870 0.00      
11 A2 216 206 0.00      
12 B1 3175 3024 0.00      
13 B1 1473 1403 0.00      
14 B1 1052 1002 0.00      
15 B1 939 894 0.00      
16 B1 642 611 0.00      
17 B1 227 216 0.00      
18 B2 3188 3037 31.33      
19 B2 1675 1595 1.19      
20 B2 1217 1159 0.90      
21 B2 681 648 74.46      
22 B2 285 271 1.24      
23 E 3194 3042 52.43      
23 E 3194 3042 52.43      
24 E 3170 3019 0.63      
24 E 3170 3019 0.63      
25 E 1694 1614 1.04      
25 E 1694 1614 1.04      
26 E 1418 1350 0.08      
26 E 1418 1350 0.08      
27 E 1228 1170 1.19      
27 E 1228 1170 1.19      
28 E 978 932 0.68      
28 E 978 932 0.68      
29 E 965 919 2.15      
29 E 965 919 2.15      
30 E 809 770 22.10      
30 E 809 770 22.10      
31 E 624 594 17.06      
31 E 624 594 17.06      
32 E 341 325 2.53      
32 E 341 325 2.53      

Unscaled Zero Point Vibrational Energy (zpe) 29003.2 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 27625.5 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 MP2/cc-pVDZ
ABC
0.08941 0.08941 0.05138

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.679 1.546 0.411
C2 -0.679 1.546 0.411
C3 0.679 -1.546 0.411
C4 -0.679 -1.546 0.411
C5 1.546 0.679 -0.411
C6 -1.546 0.679 -0.411
C7 1.546 -0.679 -0.411
C8 -1.546 -0.679 -0.411
H9 1.189 2.312 1.012
H10 -1.189 2.312 1.012
H11 1.189 -2.312 1.012
H12 -1.189 -2.312 1.012
H13 2.312 1.189 -1.012
H14 -2.312 1.189 -1.012
H15 2.312 -1.189 -1.012
H16 -2.312 -1.189 -1.012

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.35713.09183.37651.47662.52512.52513.25151.09942.10633.93734.32792.19543.33073.48914.2951
C21.35713.37653.09182.52511.47663.25152.52512.10631.09944.32793.93733.33072.19544.29513.4891
C33.09183.37651.35712.52513.25151.47662.52513.93734.32791.09942.10633.48914.29512.19543.3307
C43.37653.09181.35713.25152.52512.52511.47664.32793.93732.10631.09944.29513.48913.33072.1954
C51.47662.52512.52513.25153.09181.35713.37652.19543.48913.33074.29511.09943.93732.10634.3279
C62.52511.47663.25152.52513.09183.37651.35713.48912.19544.29513.33073.93731.09944.32792.1063
C72.52513.25151.47662.52511.35713.37653.09183.33074.29512.19543.48912.10634.32791.09943.9373
C83.25152.52512.52511.47663.37651.35713.09184.29513.33073.48912.19544.32792.10633.93731.0994
H91.09942.10633.93734.32792.19543.48913.33074.29512.37854.62325.19922.57254.19694.19695.3489
H102.10631.09944.32793.93733.48912.19544.29513.33072.37855.19924.62324.19692.57255.34894.1969
H113.93734.32791.09942.10633.33074.29512.19543.48914.62325.19922.37854.19695.34892.57254.1969
H124.32793.93732.10631.09944.29513.33073.48912.19545.19924.62322.37855.34894.19694.19692.5725
H132.19543.33073.48914.29511.09943.93732.10634.32792.57254.19694.19695.34894.62322.37855.1992
H143.33072.19544.29513.48913.93731.09944.32792.10634.19692.57255.34894.19694.62325.19922.3785
H153.48914.29512.19543.33072.10634.32791.09943.93734.19695.34892.57254.19692.37855.19924.6232
H164.29513.48913.33072.19544.32792.10633.93731.09945.34894.19694.19692.57255.19922.37854.6232

picture of cyclooctatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 125.973 C1 C2 H10 117.681
C1 C5 C7 125.973 C1 C5 H13 116.149
C2 C1 C5 125.973 C2 C1 H9 117.681
C2 C6 C8 125.973 C2 C6 H14 116.149
C3 C4 C8 125.973 C3 C4 H12 117.681
C3 C7 C5 125.973 C3 C7 H15 116.149
C4 C3 C7 125.973 C4 C3 H11 117.681
C4 C8 C6 125.973 C4 C8 H16 116.149
C5 C1 H9 116.149 C5 C7 H15 117.681
C6 C2 H10 116.149 C6 C8 H16 117.681
C7 C3 H11 116.149 C7 C5 H13 117.681
C8 C4 H12 116.149 C8 C6 H14 117.681
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability