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Article Dans Une Revue Chemical Science Année : 2020

Exploiting the versatile alkyne-based chemistry for expanding the applications of a stable triphenylmethyl organic radical on surfaces

Résumé

The incorporation of terminal alkynes into the chemical structure of persistent organic perchlorotriphenylmethyl (PTM) radicals provides new chemical tools to expand their potential applications. In this work, this is demonstrated by the chemical functionalization of two types of substrates, hydrogenated SiO2-free silicon (Si-H) and gold, and, by exploiting the click chemistry, scarcely used with organic radicals, to synthesise multifunctional systems. On one hand, the one-step functionalization of Si-H allows a light-triggered capacitance switch to be successfully achieved under electrochemical conditions. On the other hand, the click reaction between the alkyne-terminated PTM radical and a ferrocene azide derivative, used here as a model azide system, leads to a multistate electrochemical switch. The successful post-surface modification makes the self-assembled monolayers reported here an appealing platform to synthesise multifunctional systems grafted on surfaces.

Domaines

Chimie organique
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Dates et versions

hal-02470141 , version 1 (07-02-2020)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

J. Alejandro de Sousa, Francesc Bejarano, Diego Gutierrez, Yann R. Leroux, Ewa Malgorzata Nowik-Boltyk, et al.. Exploiting the versatile alkyne-based chemistry for expanding the applications of a stable triphenylmethyl organic radical on surfaces. Chemical Science, 2020, 11 (2), pp.516-524. ⟨10.1039/c9sc04499j⟩. ⟨hal-02470141⟩
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