title: A Molecular Propeller with Three Nanohoop Blades: Synthesis, Characterization, and Solid-State Packing.
abstract: Nanoscale carbon-rich molecular architectures are not only aesthetically appealing but also of practical importance for energy and biomedical technologies. Herein, we report the synthesis of cyclic-oligophenylene-based nanopropeller 1 by using an efficient synthon strategy involving sequential intramolecular bisboronate homocoupling and reductive aromatization by H2SnCl4. The nanopropeller molecules pack into a layered hexagonal lattice featuring long-ranged nano-sized channels and a total guest-accessible volume of 48 %, as revealed by X-ray diffraction studies. We suggest that such a solid-state arrangement is determined by the interplay between the propeller architecture and the intermolecular van der Waals interactions.
authors.affiliation: Department of Chemistry and Biochemistry, University of Oregon, Eugene, OR, 97403-1253, USA.
authors.forename: Penghao
authors.identifier: 0000-0002-1517-5845
authors.initials: P
authors.lastname: Li
authors.affiliation: CAMCOR-Center for Advanced Materials Characterization in Oregon, University of Oregon, Eugene, OR, 97403-1443, USA.
authors.forename: Lev N
authors.initials: LN
authors.lastname: Zakharov
authors.affiliation: Department of Chemistry and Biochemistry, University of Oregon, Eugene, OR, 97403-1253, USA.
authors.forename: Ramesh
authors.initials: R
authors.lastname: Jasti
keywords: carbon-rich materials; cycloparaphenylenes; homocoupling; macrocyclization; nanohoops