Question: As discussed in A Word About Polyacetylene and Conducting Polymers (p. 421), thin films of all-cis or all-trans polyacetylene have different appearances, being coppery or

As discussed in "A Word About Polyacetylene and Conducting Polymers" (p. 421), thin films of all-cis or all-trans polyacetylene have different appearances, being coppery or silvery, respectively. Draw structures of the all-cis or all-trans isomers of polyacetylene as well as the alternating cis-trans isomer.

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