Abstract
Fullertube structures do indeed possess an elegant molecular architecture. Fullertubes also represent a new type of carbon allotrope that merges structural subunits of part fullerene and part nanotube. With fullerenyl endcaps and a nanotubyl belt region resembling a single layer of rolled graphene, fullertubes are highly anticipated to exhibit unique properties for use in multiple application areas (e.g., electronics, pharmaceuticals, etc). The first priority, however, is developing an approach to isolate large amounts of pristine, unfunctionalized samples of isomeric purity. This need for sample availability must be addressed before fundamental science and industrial research and development (R&D) can be effectively pursued. In this presentation, I will discuss separation strategies for purifying macroscopic quantities of isomerically purified fullertubes. We are making progress in expanding the fullertube length (i.e., increasing the aspect ratio) while maintaining a constant tubular diameter comparable to the diameter of C60. We will also discuss our latest results for chemically purifying new structural isomers of longer fullertubes......e.g., beyond C90-D5h(1) and C100-D5d(1) toward C120 isomers.
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