Biasing the Hierarchy Motifs of Nanotoroids: from 1D Nanotubes to 2D Porous Networks

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Valera, Jorge S. and Arima, Hironari and Naranjo Calderón, Cristina and Saito, Takuho and Suda, Natsuki and Gómez Aspe, Rafael and Yagai, Shiki and Sánchez Martín, Luis (2021) Biasing the Hierarchy Motifs of Nanotoroids: from 1D Nanotubes to 2D Porous Networks. Angewandte Chemie International Edition, 61 (5). ISSN 1433-7851

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Official URL: https://doi.org/10.1002/anie.202114290



Abstract

Hierarchical organization of self-assembled structures into superstructures is omnipresent in Nature but has been rarely achieved in synthetic molecular assembly due to the absence of clear structural rules. We herein report on the selfassembly of scissor-shaped azobenzene dyads which form discrete nanotoroids that further organize into 2D porous networks. The steric demand of the peripheral aliphatic units diminishes the trend of the azobenzene dyad to constitute stackable nanotoroids in solution, thus affording isolated (unstackable) nanotoroids upon cooling. Upon drying, these nanotoroids organize at graphite surface to form well-defined 2D porous networks. The photoirradiation with UVand visible light enabled reversible dissociation and reconstruction of nanotoroids through the efficient trans$cis isomerization of azobenzene moieties in solution.


Item Type:Article
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CRUE-CSIC (Acuerdos Transformativos 2021)

Uncontrolled Keywords:azobenzene, hierarchical organization, nanotoroids, photorespon sivesystems, supramolecular polymers
Subjects:Sciences > Chemistry > Chemistry, Organic
ID Code:70319
Deposited On:16 Feb 2022 15:14
Last Modified:22 Feb 2022 09:58

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