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Chiral Metal Nanoparticle Superlattices Enabled by Porphyrin‐Based Supramolecular Structures
Author(s) -
Yang Fei,
Liu Xinyong,
Yang Zhijie
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202103809
Subject(s) - nanoparticle , porphyrin , chirality (physics) , van der waals force , supramolecular chirality , supramolecular chemistry , oleylamine , molecule , metalation , materials science , nanotechnology , chemistry , photochemistry , organic chemistry , chiral symmetry breaking , physics , quantum mechanics , quark , nambu–jona lasinio model
Herein, we show that chiral metal nanoparticle superlattices can be produced through coassembly of achiral metal nanoparticles and porphyrin‐based organic molecules. This chirality transfer from molecules to nanoparticle superstructures across three orders of magnitude in length scale is enabled by the hetero chain‐chain van der Waals interactions. As far as we know, these are the first chiral nanoparticle assemblies based on chirality transfer through weak van der Waals forces. The dimensionality of the nanoparticle superlattices (1D chiral chains, 2D chiral sheets (cones), and 3D chiral particles) can be controlled based on a same synthetic chiral porphyrin molecule. Metalation of these porphyrin molecules with zinc cations results in the switching of molecular packing from J‐type to H‐type, which thereby produces 1D chiral nanoparticle chains. Functionalization of these zinc porphyrins with oleylamine can induce the assembly of nanoparticles into 2D chiral nanoparticle sheets.