different between heterohelicene vs thiaazahelicene

English

From hetero- +? helicene.

heterohelicene (plural heterohelicenes)

(organic chemistry) Any heterocyclic equivalent of a helicene, having at least one heteroatom in at least one of its rings

thia- +? aza- +? helicene

thiaazahelicene (uncountable)

(organic chemistry) Any heterohelicene containing at least one nitrogen and one sulfur heteroatoms.

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