Expanded Cubane: Synthesis of a Cage Compound with a C56 Core by Acetylenic Scaffolding and Gas-Phase Transformations into Fullerenes

✍ Scribed by Peter Manini; Walter Amrein; Volker Gramlich; François Diederich

• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: English
• Weight: 145 KB
• Volume: 41
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/1521-3773(20021115)41:22<4339::aid-anie4339>3.0.co;2-8

✦ Synopsis

We have been interested since the early 1990s in the geometrically defined expansion of molecules by the introduction of buta-1,3-diynediyl fragments between all CÀC single bonds, thereby enhancing both the carbon atom content and the optoelectronic properties of the resulting chromophores. [1] Application of this general concept to linear systems led from poly(acetylenes) to poly(triacetylenes) and from dendralenes to expanded dendralenes. Novel macrocyclic systems prepared following this strategy were dehydro[n]annulenes and expanded radialenes. [1, 5] We now report the first COMMUNICATIONS