a phenomenon in which electrons are delocalized over multiple atoms in a molecule, leading to increased stability.
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5,8-di-(p-methoxyphenyl)-6,7-diphenyl-2-t-butylquinazoline
1-Phospha-1-butyne, 3,3-dimethyl-
4,4-Dimethyl-5-oxo-2-phenethyl-tetrahydro-furan-3-carboxylic acid ethyl ester
3,3'-(1,3-butadiyne-1,4-diyl)bis<2-(phenylmethoxy)pyridine>
