摘要

We have been developing host-guest chemistry for separation of carbon nanotubes (CNTs) according to diameter, metallicity, and even handedness. The host molecules named "nanotweezers" consisting of a rigid core and two receptors were designed and applied to CNT separation. To apply this methodology for separation of a wider range of CNTs with better selectivity, "nanocalipers" have been designed, which include a core, two corners, and two receptors. In this review, we focus on "nanocalipers", new host molecules next to the nanotweezers, from their molecular design and synthesis to CNT separation.