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A Three‐Dimensional Dynamic Supramolecular “Sticky Fingers” Organic Framework
Author(s) -
FernandezBartolome Estefania,
Santos José,
Gamonal Arturo,
Khodabakhshi Saeed,
McCormick Laura J.,
Teat Simon J.,
Sañudo E. Carolina,
Costa José Sánchez,
Martín Nazario
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201812419
Subject(s) - supramolecular chemistry , van der waals force , fullerene , materials science , nanotechnology , porosity , chemical physics , crystal (programming language) , single crystal , crystal engineering , molecular dynamics , molecular machine , soft materials , molecule , chemical engineering , chemistry , computational chemistry , crystallography , organic chemistry , computer science , composite material , engineering , programming language
Engineering high‐recognition host–guest materials is a burgeoning area in basic and applied research. The challenge of exploring novel porous materials with advanced functionalities prompted us to develop dynamic crystalline structures promoted by soft interactions. The first example of a pure molecular dynamic crystalline framework is demonstrated, which is held together by means of weak “sticky fingers” van der Waals interactions. The presented organic‐fullerene‐based material exhibits a non‐porous dynamic crystalline structure capable of undergoing single‐crystal‐to‐single‐crystal reactions. Exposure to hydrazine vapors induces structural and chemical changes that manifest as toposelective hydrogenation of alternating rings on the surface of the [60]fullerene. Control experiments confirm that the same reaction does not occur when performed in solution. Easy‐to‐detect changes in the macroscopic properties of the sample suggest utility as molecular sensors or energy‐storage materials.