Unformatted text preview: (c) Evaluate your new forms - Do you think they contribute substantially to the structure of benzene? Why or why not? The answer here depends on what you drew. The ones in (b) above do not contribute strongly. They are relatively high energy forms because of charge separation, fewer bonds than the “cyclohexatriene” forms, or long pi bonds across the middle of the ring. pi bonds? Be certain you see that those long bonds are pi bonds and not sigma bonds....
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- Fall '10
- Mole, Molecule, Chemical bond, resonance form, ring. pi bonds