A Molecular Propeller with Three Nanohoop Blades: Synthesis, Characterization, and Solid‐State Packing. (7th April 2017)

• Record Type: Journal Article
• Authors: Li, Penghao; Zakharov, Lev N.; Jasti, Ramesh
• Is Part Of: Angewandte Chemie. Volume 129:Number 19(2017)
• Page Start: 5321
• Page End: 5325
• Publication Date: 2017-04-07
• Subjects: Cycloparaphenylene -- Homokupplungen -- Kohlenstoffreiche Materialien -- Makrocyclisierungen -- Nanoreifen; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201700935
• Languages: English
• ISSNs: 0044-8249

Abstract

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 H2 SnCl4 . 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.