Do you expect hexatriene #C_6H_8# to have multiple resonance structures?

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Aug 9, 2015

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Yes, hexatriene has multiple resonance structures.

Explanation:

The structure of hexa-1,3,5-triene is

Hexatriene
(from www.chemsynthesis.com)

We can draw many resonance contributors for hexatriene.

#"CH"_2"=CH-CH=CH-CH=CH"_2 ⟷ stackrel(-)("C")"H"_2"-"stackrel(+)("C")"H-CH=CH-CH=CH"_2 ⟷ stackrel(-)("C")"H"_2"-CH=CH-"stackrel(+)("C")"H-CH=CH"_2 ⟷ "etc."#

All but the first contributor have a separation of charge, so they are high-energy contributors and relatively unimportant.

Hexa-1,3,5-triene has only one important resonance contributor.

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