—A Hint Of Carbyne “End-capping strategy paves the way for a potential synthesis of the elusive carbon allotrope” Thanks to bulky end-capping groups, researchers have come closer than ever to synthesizing the lesser known carbon allotrope carbyne, which is made of extremely long chains of alternating single and triple bonds. Carbon allotropes such as nanotubes and graphene—the latest darlings of materials science—are prompting chemists to try to isolate carbyne and determine its properties, too. Carbyne is thought to exist in interstellar dust and meteorites, but attempts to make it have led to ill-defined materials. Attempts to model carbyne by synthesizing polyalkyne chains have been somewhat successful, with a 28-carbon chain being the longest isolable polyyne reported.
by Carmen Drahl |
September 20, 2010