Author, as appears in the article.: Centellas MS; Piot M; Salles R; Proust A; Tortech L; Brouri D; Hupin S; Abécassis B; Landy D; Bo C; Izzet G

Department: Química Física i Inorgànica

URV's Author/s: Bo Jané, Carles

Abstract: © The Royal Society of Chemistry. The formation of hierarchical nanostructures using preformed dumbbell-like species made of covalent organic-inorganic polyoxometalate (POM)-based hybrids is herein described. In this system, the presence of charged subunits (POM, metal linkers, and counter ions) in the complex molecular architecture can drive their aggregation, which results from a competition between the solvation energy of the discrete species and intermolecular electrostatic interactions. We show that the nature of the POM and the charge of the metal linker are key parameters for the hierarchical nanoorganization. The experimental findings were corroborated with a computational investigation combining DFT and molecular dynamics simulation methods, which outlines the importance of solvation of the counter ion and POM/counter ion association in the aggregation process. The dumbbell-like species can also form gels, in the presence of a poorer solvent, displaying similar nanoorganization of the aggregates. We show that starting from the designed molecular building units whose internal charges can be controlled by redox trigger we can achieve their implementation into soft nanostructured materials through the control of their supramolecular organization.

Thematic Areas: Química Materiais Interdisciplinar General chemistry Farmacia Ciências biológicas iii Ciências biológicas i Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Astronomia / física

licence for use: https://creativecommons.org/licenses/by/3.0/es/

Author's mail: carles.bo@urv.cat

Author identifier: 0000-0001-9581-2922

Record's date: 2023-02-19

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://pubs.rsc.org/en/content/articlelanding/2020/sc/d0sc03243c

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Chemical Science. 11 (40): 11072-11080

APA: Centellas MS; Piot M; Salles R; Proust A; Tortech L; Brouri D; Hupin S; Abécassis B; Landy D; Bo C; Izzet G (2020). Exploring the self-assembly of dumbbell-shaped polyoxometalate hybrids, from molecular building units to nanostructured soft materials. Chemical Science, 11(40), 11072-11080. DOI: 10.1039/d0sc03243c

Article's DOI: 10.1039/d0sc03243c

Entity: Universitat Rovira i Virgili

Journal publication year: 2020

Publication Type: Journal Publications