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A Molecular Propeller with Three Nanohoop Blades: Synthesis, Characterization, and Solid‐State Packing
Author(s) -
Li Penghao,
Zakharov Lev N.,
Jasti Ramesh
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201700935
Subject(s) - synthon , intramolecular force , van der waals force , intermolecular force , supramolecular chemistry , molecule , nanotechnology , chemistry , solid state , nanoscopic scale , characterization (materials science) , materials science , crystallography , chemical physics , stereochemistry , organic chemistry
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 H 2 SnCl 4 . 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.