By Shaik S., Shurki A., Danovich D.
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Extra info for A Different Story of pi;-Delocalizations - The Distortivity of pi;-Electrons and Its Chemical Manifestations
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09 Å) and a very long endo-σbond. This has been used as evidence for significant bond alternation of the σ-frame due to angular strain. However, the effect is in fact due to the interaction of the central σ-bonds of the cyclohexane with the π-orbitals of the benzo-rings. This interaction elongates the bonds considerably, so that the molecule is part-way along the ring opening process which is found indeed to occur and to possess a relatively small barrier. ; Maksic, Z. B. J. Organomet. Chem. 1998, 571, 65.
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A Different Story of pi;-Delocalizations - The Distortivity of pi;-Electrons and Its Chemical Manifestations by Shaik S., Shurki A., Danovich D.