Development of polymerization methods for novel polyyne polymers based on organometallic chemistry

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Polyyne is an allotrope of carbon consists of alternating single and triple C-C bonds. Although the polymer is interesting because of its potential applicability for functional materials, chemical synthetic method of the polymer has not been established. In this study, halogenated metal acetylide and its equivalents, cyclopropenone ketals, cyclopropenone dithioketals, and adducts of halogenated metal acetylide with N-heterocyclic carbine, are synthesized as promising monomers of polyyne.