Regular arrays of C60-based molecular rotors mounted on the surface of tris(o-phenylenedioxy)cyclotriphosphazene nanocrystals

Carina Santos Hurtado; Guillaume Bastien; Igor Rončević; Martin Dračínský; Teddy Tortorici; Charles T. Rogers; Josef Michl; Jiří Kaleta

doi:10.1039/D3CC04559E

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Regular arrays of C₆₀-based molecular rotors mounted on the surface of tris(o-phenylenedioxy)cyclotriphosphazene nanocrystals†

Carina Santos Hurtado,^a Guillaume Bastien,^a Igor Rončević,^b Martin Dračínský,^a Teddy Tortorici,^c Charles T. Rogers,^c Josef Michl

^ad and Jiří Kaleta

*^a

Author affiliations

* Corresponding authors

^a Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, Prague 6, Czech Republic
E-mail: jiri.kaleta@uochb.cas.cz

^b Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford OX1 3TA, UK

^c Department of Physics, University of Colorado, Boulder, Colorado 80309, USA

^d Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, USA

Abstract

Dielectric spectroscopy has been used to determine the barriers of rotation of surface-mounted fullerenes (2.3 ± 0.1 and 4.3 ± 0.1 kcal mol⁻¹). In order to achieve this, a C₆₀ derivative equipped with an anchoring group designed to form a surface inclusion with the hexagonal form of tris(o-phenylenedioxy)cyclotriphosphazene (TPP) has been synthesized. Solid-state NMR analysis revealed that approximately 50% of the surface-mounted molecules have a chemical environment different from the others suggesting two distinct insertion modes. These observations correlate with results of DFT calculations.

This article is part of the themed collection: Chemical Communications HOT Articles 2024

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DOI: https://doi.org/10.1039/D3CC04559E
Article type: Communication
Submitted: 14 Sep 2023
Accepted: 27 Oct 2023
First published: 06 Nov 2023
This article is Open Access

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Chem. Commun., 2024,60, 960-963

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Regular arrays of C₆₀-based molecular rotors mounted on the surface of tris(o-phenylenedioxy)cyclotriphosphazene nanocrystals

C. S. Hurtado, G. Bastien, I. Rončević, M. Dračínský, T. Tortorici, C. T. Rogers, J. Michl and J. Kaleta, Chem. Commun., 2024, 60, 960 DOI: 10.1039/D3CC04559E

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