Linear polyynes short oligomers of elusive carbyne

1 Linear Polyynes Short Oligomers of Elusive Carbyne 

An intriguing aspect of carbon chemistry is the preparation of infinite one-dimensional rods constituted of alkyne units. Interest in such compounds dates back to Baeyer, who studied the oxidative Glaser [66] coupling of acetylenes in the search for infinite linear chains of pure carbon [67]. A century later, the preparation and characterization of infinite linear polyynes [-(CsQ -] named carbynes were actively pursued using a variety of methods [68], But reports of the preparation and structure of these materials, which are calculated to be onedimensional conductors, remain controversial [69]. 

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